{"id":680965,"date":"2021-10-12T10:36:54","date_gmt":"2021-10-12T08:36:54","guid":{"rendered":"https:\/\/rothschenk.de\/epizoda-10-uzavretie-sily\/"},"modified":"2025-06-30T17:03:07","modified_gmt":"2025-06-30T15:03:07","slug":"epizoda-10-uzavretie-sily","status":"publish","type":"post","link":"https:\/\/rothschenk.de\/sk\/epizoda-10-uzavretie-sily\/","title":{"rendered":"Epiz\u00f3da 10: Uzavretie sily"},"content":{"rendered":"\n<p>Tvarov\u00e9 upevnenie n\u00e1kladu u\u017e bolo op\u00edsan\u00e9 v <strong><a href=\"https:\/\/rothschenk.de\/sk\/epizoda-8-pozitivne-uzamykanie-v-kontajneri\/\">epiz\u00f3de 8<\/a><\/strong> u\u017e bolo spracovan\u00e9. Teraz sa bli\u017e\u0161ie pozrime na <strong>trec\u00ed spoj <\/strong>. \u010co je to trec\u00ed spoj, ako funguje a \u010do je d\u00f4le\u017eit\u00e9 pri zaisten\u00ed bremena?  <\/p>\n\n<h2 class=\"wp-block-heading\">Defin\u00edcia<\/h2>\n\n<p>Trec\u00ed spoj je spojenie dvoch \u010dast\u00ed prostredn\u00edctvom povrchu, pri\u010dom oba povrchy maj\u00fa vysok\u00fd koeficient trenia. Ako to funguje? <\/p>\n\n<p>Predpoklad\u00e1 sa, \u017ee bremeno p\u00f4sob\u00ed na povrch silou 10 kg. Norm\u00e1lov\u00e1 sila sa vypo\u010d\u00edta vyn\u00e1soben\u00edm hmotnosti (pr\u00edklad 10 kg) gravita\u010dnou silou g (9,81 <sup>m\/s2<\/sup>). <\/p>\n\n<p><strong>Norm\u00e1lov\u00e1 sila je teda<\/strong> <strong>10 kg * 9,81 m\/s2<sup>= <\/sup> 100 N.<\/strong><\/p>\n\n<p>Norm\u00e1lov\u00e1 sila p\u00f4sob\u00ed na povrch v\u017edy vertik\u00e1lne.<\/p>\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ef694a6ea7a&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ef694a6ea7a\" class=\"wp-block-image aligncenter size-full wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/rothschenk.de\/wp-content\/uploads\/\" alt=\"\" class=\"wp-image-148547\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Zv\u00e4\u010d\u0161i\u0165\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p>Ka\u017ed\u00fd povrch m\u00e1 ur\u010dit\u00fa drsnos\u0165, ktor\u00e1 pri kontakte oboch povrchov vytv\u00e1ra mikroser\u00e1ciu. Tento rozmer sa ozna\u010duje p\u00edsmenom \u00b5 a naz\u00fdva sa <strong>koeficient trenia<\/strong>. <\/p>\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ef694a6edb7&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ef694a6edb7\" class=\"wp-block-image aligncenter size-full wp-lightbox-container\"><img fetchpriority=\"high\" decoding=\"async\" width=\"500\" height=\"200\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-3.jpg\" alt=\"\" class=\"wp-image-148550\" srcset=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-3.jpg 500w, https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-3-300x120.jpg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Zv\u00e4\u010d\u0161i\u0165\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p>Ak sa teraz pok\u00fasite pohybova\u0165 povrchmi proti sebe, t\u00e1to drsnos\u0165 vytvor\u00ed <strong>protisilu<\/strong>. Pr\u00e1ve tento efekt sa vyu\u017e\u00edva pri <strong>trecom spojen\u00ed <\/strong>. <\/p>\n\n<p>Protisila z\u00e1vis\u00ed od \u0161pecifick\u00e9ho koeficientu trenia \u00b5 a naz\u00fdva sa trecia sila.<\/p>\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ef694a6f07b&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ef694a6f07b\" class=\"wp-block-image aligncenter size-full wp-lightbox-container\"><img decoding=\"async\" width=\"500\" height=\"200\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-1.jpg\" alt=\"\" class=\"wp-image-148553\" srcset=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-1.jpg 500w, https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-1-300x120.jpg 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Zv\u00e4\u010d\u0161i\u0165\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p>Ak napr\u00edklad v\u00fdrobca karos\u00e9ri\u00ed n\u00e1kladn\u00fdch automobilov uv\u00e1dza pre svoje nakladacie plochy koeficient trenia <strong>\u00b5 = 0,3<\/strong>, znamen\u00e1 to, \u017ee sila potrebn\u00e1 na premiestnenie paliet predstavuje <strong>30 % norm\u00e1lovej sily<\/strong>.<\/p>\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">Zabezpe\u010denie n\u00e1kladu silou<\/h2>\n\n<p>Ako funguje silov\u00e9 zaistenie vo\u013ene stojaceho bremena s hmotnos\u0165ou 1 000 kg proti posunutiu pri plnom brzden\u00ed s 0,8 g? (pozri VDI-2700 a EN-12195-1).<\/p>\n\n<p>Po\u017eadovan\u00e1 <strong>zais\u0165ovacia sila<\/strong> pod\u013ea predpisov je <br\/><strong><sub>FS<\/sub> = m * g * a = 1 000 kg * 9,81 <sup>m\/s2<\/sup> * 0,8 g = 8 000 N = 800 daN<\/strong><\/p>\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-columns has-black-color has-text-color has-background has-link-color wp-elements-eaff3723a1117a484018ab55f891d2c7 is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"background-color:#f5f5f5\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ef694a6f693&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ef694a6f693\" class=\"wp-block-image size-medium wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/rothschenk.de\/wp-content\/uploads\/\" alt=\"\" class=\"wp-image-148543\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Zv\u00e4\u010d\u0161i\u0165\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<p>N\u00e1klad sa zvy\u010dajne pripev\u0148uje pomocou <a href=\"https:\/\/rothschenk.de\/produkt-kategorie\/zurrgurte\/\">nap\u00ednac\u00edch p\u00e1sov<\/a>. Sila, ktor\u00e1 teraz p\u00f4sob\u00ed proti posunu, sa sklad\u00e1 z dvoch zlo\u017eiek: norm\u00e1lov\u00e1 sila + predp\u00ednacia sila. <\/p>\n\n\n\n<p>Je v\u0161ak potrebn\u00e9 zoh\u013eadni\u0165 vplyv troch okrajov\u00fdch podmienok:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>trecia sila<sub>FR<\/sub><\/strong> z koeficientu trenia <strong>\u00b5<\/strong><\/li>\n\n\n\n<li><strong>uhol upevnenia <\/strong><strong>\u03b1<\/strong> medzi bodom upevnenia a 1. bodom vych\u00fdlenia<\/li>\n\n\n\n<li><strong>prenosov\u00fd koeficient\/koeficient K<\/strong> medzi dvoma bodmi upevnenia<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">Trecia sila<\/h3>\n\n<p>Predp\u00ednaciu silu mo\u017eno ch\u00e1pa\u0165 aj ako pr\u00eddavn\u00e9 za\u0165a\u017eenie. To znamen\u00e1, \u017ee \u00fa\u010dinn\u00e1 je len t\u00e1 \u010das\u0165 predp\u00ednacej sily, ktor\u00e1 zodpoved\u00e1 koeficientu trenia. <\/p>\n\n<p><strong>Trecia sila<sub>FR<\/sub><\/strong> = 1 000 daN * 0,3 = 300 daN<br\/><strong>Zabezpe\u010dovacia sila FS<\/strong> = 500 daN * 0,3 = 150 daN<br\/>Spolu: 450 daN<\/p>\n\n<p>Na premiestnenie 1 000 kg by teda bola potrebn\u00e1 sila iba 450 daN.<\/p>\n\n<p>Pr\u00edklad ukazuje, \u017ee predp\u00ednacia sila 500 daN nie je dostato\u010dn\u00e1 na zabezpe\u010denie bremena proti posunu. Musia sa prida\u0165 opatrenia, ako je napr\u00edklad viazanie. <\/p>\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ef694a7019a&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ef694a7019a\" class=\"wp-block-image aligncenter size-full wp-lightbox-container\"><img decoding=\"async\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-4-2.jpg\" alt=\"\" class=\"wp-image-148534\"\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Zv\u00e4\u010d\u0161i\u0165\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">Uhol pripevnenia<\/h3>\n\n<p>\u010eal\u0161ou okrajovou podmienkou pre ve\u013ekos\u0165 \u00fa\u010dinnej predp\u00ednacej sily je uhol upevnenia \u03b1, preto\u017ee \u00fa\u010dinn\u00e1 je len vertik\u00e1lna \u010das\u0165 predp\u00ednacej sily. Tento podiel vypl\u00fdva zo s\u00ednusu uhla vyviazania. <\/p>\n\n<p>Pr\u00edklad: pri <strong>uhle vyviazania <\/strong><strong>\u03b1<\/strong> 80\u00ba je s\u00ednus 0,9961.<\/p>\n\n<p>To znamen\u00e1, \u017ee z 500 daN predp\u00ednacej sily je skuto\u010dne \u00fa\u010dinn\u00fdch len 500 daN * 0,9961 = 498 daN<\/p>\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ef694a70479&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ef694a70479\" class=\"wp-block-image aligncenter size-full wp-lightbox-container\"><img decoding=\"async\" width=\"400\" height=\"300\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-4-3.jpg\" alt=\"\" class=\"wp-image-148537\" srcset=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-4-3.jpg 400w, https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-4-3-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Zv\u00e4\u010d\u0161i\u0165\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h3 class=\"wp-block-heading\">Koeficient prenosu<\/h3>\n\n<p>Predp\u00e4tie vytvoren\u00e9 nap\u00ednacou z\u00e1padkou existuje len medzi bodom upevnenia na lo\u017enej ploche a prv\u00fdm bodom vych\u00fdlenia. V miestach vych\u00fdlenia sa zni\u017euje v d\u00f4sledku trec\u00edch str\u00e1t. \u010c\u00edm viac bodov vych\u00fdlenia, t\u00fdm v\u00e4\u010d\u0161ie s\u00fa straty.  <\/p>\n\n<p>S\u00fa\u010det sily predp\u00e4tia sa preto sklad\u00e1 minim\u00e1lne z troch \u010dast\u00ed:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>\u010cas\u0165 1: Bod pripojenia &#8211; bod vych\u00fdlenia 1<\/li>\n\n\n\n<li>\u010cas\u0165 2: Bod vych\u00fdlenia 1 a 2<\/li>\n\n\n\n<li>\u010cas\u0165 3: Bod vych\u00fdlenia 2 &#8211; Bod pripojenia<\/li>\n<\/ul>\n\n<p>V\u00fdsledok mo\u017eno vypo\u010d\u00edta\u0165 pomocou <strong>koeficientu prenosu\/K-faktora<\/strong>. Za predpokladu koeficientu 1,5 by s\u00fa\u010det predp\u00ednacej sily bol 500 daN * 1,5 = 750 daN. <\/p>\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ef694a707cf&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ef694a707cf\" class=\"wp-block-image aligncenter size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"300\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-4-4.jpg\" alt=\"\" class=\"wp-image-148540\" srcset=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-4-4.jpg 400w, https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-4-4-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Zv\u00e4\u010d\u0161i\u0165\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n<div style=\"height:35px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\">Po\u010det nap\u00ednac\u00edch reme\u0148ov<\/h2>\n\n<div class=\"wp-block-columns has-black-color has-text-color has-background has-link-color wp-elements-11e8de44df5cbb93aea9b90f57933675 is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"background-color:#f5f5f5\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ef694a70aa3&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ef694a70aa3\" class=\"wp-block-image size-medium wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/03\/info-icon-rothschenk-schwarz-300x300.png\" alt=\"\" class=\"wp-image-146591\" srcset=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/03\/info-icon-rothschenk-schwarz-300x300.png 300w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/03\/info-icon-rothschenk-schwarz-150x150.png 150w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/03\/info-icon-rothschenk-schwarz-768x768.png 768w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/03\/info-icon-rothschenk-schwarz-600x600.png 600w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/03\/info-icon-rothschenk-schwarz-100x100.png 100w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/03\/info-icon-rothschenk-schwarz.png 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Zv\u00e4\u010d\u0161i\u0165\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<p>Ak teraz pod\u013ea pr\u00edkladu uva\u017eujeme v\u0161etky okrajov\u00e9 podmienky spolo\u010dne, dostaneme nasleduj\u00faci v\u00fdsledok v\u00fdpo\u010dtu:<\/p>\n\n\n\n<p><strong><sub>FSTF<\/sub> = predp\u00ednacia sila * faktor K * uhol sin upevnenia \u03b1 * \u00b5<\/strong><br\/><strong>= 500 daN * 1,5 * sin35\u00ba (0,5735) * 0,3 = 129 daN<\/strong><\/p>\n<\/div>\n<\/div>\n\n<p>Ko\u013eko <a href=\"https:\/\/rothschenk.de\/produkt-kategorie\/zurrgurte\/\">upev\u0148ovac\u00edch popruhov<\/a> je potrebn\u00fdch na zabezpe\u010denie tohto n\u00e1kladu? Tu je mo\u017en\u00e9 zoh\u013eadni\u0165 nasleduj\u00face skuto\u010dnosti: <\/p>\n\n<p>800 daN mus\u00ed by\u0165 zaisten\u00e1, od\u010d\u00edtan\u00edm trecej sily 450 daN od tejto hodnoty dostaneme rozdiel 350 daN. T\u00fato silu musia zabezpe\u010di\u0165 <strong>nap\u00ednacie remene <\/strong>. 350 daN delen\u00e9 \/ 129 daN = 2,7, \u010do znamen\u00e1, \u017ee na zaistenie n\u00e1kladu 1 000 kg za stanoven\u00fdch okrajov\u00fdch podmienok s\u00fa potrebn\u00e9 3 upev\u0148ovacie p\u00e1sy.  <\/p>\n\n<p>Z\u00e1ver je alarmuj\u00faci, preto\u017ee z 500 daN, \u010do je samo o sebe ve\u013ea, zost\u00e1va v skuto\u010dnosti ve\u013emi m\u00e1lo. Z toho vypl\u00fdva z\u00e1ver, \u017ee met\u00f3da upevnenia viazac\u00edch prostriedkov pomocou trecieho z\u00e1mku podlieha mnoh\u00fdm obmedzeniam, a preto sa mus\u00ed pou\u017e\u00edva\u0165 s maxim\u00e1lnou opatrnos\u0165ou. <\/p>\n\n<p>V\u0161eobecn\u00fdm rie\u0161en\u00edm je kombin\u00e1cia viazac\u00edch popruhov + <a href=\"https:\/\/rothschenk.de\/produkt-kategorie\/antirutsch\/\">proti\u0161mykov\u00fdch roho\u017e\u00ed<\/a> s \u00b5=0,6.<\/p>\n\n<p>Rozhoduj\u00facim prvkom je zv\u00fd\u0161enie koeficientu trenia.<\/p>\n\n<p><strong>Trecia sila<sub>FR<\/sub><\/strong> = 1 000 daN * 0,6 = 600 daN<br\/><strong>Predp\u00ednacia sila <sub>FSTF<\/sub><\/strong> = 500 daN * 1,5 * sin35\u00ba (0,5735) * 0,6 = 258 daN<br\/><strong>Zabezpe\u010dovacia sila<sub>FS<\/sub><\/strong> = 600 daN + 258 daN = 858 daN<\/p>\n\n<p><strong>Zabezpe\u010dovacia rovnov\u00e1ha<\/strong>: skuto\u010dn\u00e1 zabezpe\u010dovacia sila mus\u00ed by\u0165 rovnak\u00e1 alebo v\u00e4\u010d\u0161ia ako po\u017eadovan\u00e1 zabezpe\u010dovacia sila. 858 daN \u2265 800 daN <\/p>\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69ef694a70eac&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69ef694a70eac\" class=\"wp-block-image aligncenter size-full wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"300\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-4-1.jpg\" alt=\"\" class=\"wp-image-148531\" srcset=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-4-1.jpg 400w, https:\/\/rothschenk.de\/wp-content\/uploads\/2021\/10\/berechnung-beschleunigung-lasi-blog-rothschenk-sigurd-ehringer-4-1-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Zv\u00e4\u010d\u0161i\u0165\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n<p>V praxi sa \u010dasto stret\u00e1vame s presn\u00fdm opakom. Pravdepodobne z d\u00f4vodu nedostato\u010dnej znalosti princ\u00edpu \u010dinnosti. <\/p>\n\n<p>V\u00e1\u0161, Sigurd Ehringer<\/p>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>&lt;&lt;  Predch\u00e1dzaj\u00faci pr\u00edspevok<br\/><a href=\"https:\/\/rothschenk.de\/sk\/epizoda-9-zrychlenie\/\">Epiz\u00f3da 9: Zr\u00fdchlenie<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-right\">Next post &gt;&gt; <br\/><a href=\"https:\/\/rothschenk.de\/folge-11-stauplanung-im-container\/\"> Epiz\u00f3da 11: Pl\u00e1novanie ulo\u017eenia v kontajneri<\/a><\/p>\n<\/div>\n<\/div>\n\n<div class=\"wp-block-columns alignfull are-vertically-aligned-center has-background is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\" style=\"background-color:#516062\">\n<div class=\"wp-block-column blog_autor_zusatz is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:10vw\"><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:20%\">\n<figure class=\"wp-block-image aligncenter size-large is-resized is-style-rounded\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/02\/sigurd-ehringer-ladungssicherung-ausbilder-und-berater-1024x1024.jpg\" alt=\"\" class=\"wp-image-143199\" style=\"width:150px\" srcset=\"https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/02\/sigurd-ehringer-ladungssicherung-ausbilder-und-berater-1024x1024.jpg 1024w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/02\/sigurd-ehringer-ladungssicherung-ausbilder-und-berater-300x300.jpg 300w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/02\/sigurd-ehringer-ladungssicherung-ausbilder-und-berater-150x150.jpg 150w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/02\/sigurd-ehringer-ladungssicherung-ausbilder-und-berater-768x767.jpg 768w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/02\/sigurd-ehringer-ladungssicherung-ausbilder-und-berater-600x600.jpg 600w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/02\/sigurd-ehringer-ladungssicherung-ausbilder-und-berater-100x100.jpg 100w, https:\/\/rothschenk.de\/wp-content\/uploads\/2024\/02\/sigurd-ehringer-ladungssicherung-ausbilder-und-berater.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-post-author\"><div class=\"wp-block-post-author__content\"><p class=\"wp-block-post-author__name\">Sigurd Ehringer<\/p><p class=\"wp-block-post-author__bio\">\u2714 VDI-zertifizierter Ausbilder f\u00fcr Ladungssicherung\r\n\u2714 Fachbuch-Autor\r\n\u2714 8 Jahre Projektmanager\r\n\u2714 12 Jahre bei der Bundeswehr (Kompaniechef)\r\n\u2714 20 Jahre Vertriebserfahrung\r\n\u2714 seit 1996 Berater\/Ausbilder in der Logistik\r\n\u2714 44 Jahre Ausbilder\/Trainer in verschiedenen Bereichen &#8212;&gt;\r\n\r\nIn einer Reihe von Fachbeitr\u00e4gen aus der Praxis, zu Themen rund um den Container und LKW, erhalten Sie Profiwissen aus erster Hand. Wie sichert man Ladung korrekt und was sind die Grundlagen der Ladungssicherung?\r\nErarbeitet und vorgestellt werden sie von Sigurd Ehringer, Inhaber von <a href=\"http:\/\/www.se-logcon.de\/\">SE-LogCon<\/a>.<\/p><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-column blog_autor_zusatz is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:10vw\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Tvarov\u00e9 upevnenie n\u00e1kladu u\u017e bolo op\u00edsan\u00e9 v epiz\u00f3de 8 u\u017e bolo spracovan\u00e9. Teraz sa bli\u017e\u0161ie pozrime na trec\u00ed spoj . \u010co je to trec\u00ed spoj, ako funguje a \u010do je d\u00f4le\u017eit\u00e9 pri zaisten\u00ed bremena? Defin\u00edcia Trec\u00ed spoj je spojenie dvoch \u010dast\u00ed prostredn\u00edctvom povrchu, pri\u010dom oba povrchy maj\u00fa vysok\u00fd koeficient trenia. Ako to funguje? Predpoklad\u00e1 sa, [&hellip;]<\/p>\n","protected":false},"author":1536,"featured_media":680978,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[872,874,873,892],"tags":[],"class_list":["post-680965","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cargo-blog-sk","category-fyzicka-stranka-sk","category-kontajner","category-lorry-sk"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Prenos energie - \u010do je potrebn\u00e9 zv\u00e1\u017ei\u0165? - Rothschenk<\/title>\n<meta name=\"description\" content=\"Technick\u00fd \u010dl\u00e1nok o nakladan\u00ed tovaru v n\u00e1kladnej doprave s trec\u00edm z\u00e1mkom. Nebezpe\u010denstv\u00e1 | Vzorce | Fyzika | Pr\u00edklady pou\u017eitia | Technick\u00fd \u010dl\u00e1nok \/ Sigurd Ehringer\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rothschenk.de\/sk\/epizoda-10-uzavretie-sily\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Prenos energie - \u010do je potrebn\u00e9 zv\u00e1\u017ei\u0165? - Rothschenk\" \/>\n<meta property=\"og:description\" content=\"Technick\u00fd \u010dl\u00e1nok o nakladan\u00ed tovaru v n\u00e1kladnej doprave s trec\u00edm z\u00e1mkom. 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