{"id":435,"date":"2023-06-18T06:31:00","date_gmt":"2023-06-18T06:31:00","guid":{"rendered":"https:\/\/physigeek.com\/pt\/primavera\/"},"modified":"2023-06-18T06:31:00","modified_gmt":"2023-06-18T06:31:00","slug":"primavera","status":"publish","type":"post","link":"https:\/\/physigeek.com\/pt\/primavera\/","title":{"rendered":"Primavera"},"content":{"rendered":"<p>Este artigo explica o que \u00e9 uma mola, tamb\u00e9m chamada de mola. Al\u00e9m disso, voc\u00ea aprender\u00e1 sobre os diferentes tipos de molas e suas aplica\u00e7\u00f5es.<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-un-resorte\"><\/span> O que \u00e9 uma primavera?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Uma <strong>mola<\/strong> (ou <strong>mola<\/strong> ) \u00e9 um corpo met\u00e1lico dobrado em uma bobina que pode retornar \u00e0 sua forma ap\u00f3s ser comprimido ou expandido. Em outras palavras, uma mola \u00e9 um elemento el\u00e1stico que n\u00e3o se deforma permanentemente, mas depois de parar de exercer for\u00e7a sobre a mola, ela retorna \u00e0 sua forma original.<\/p>\n<p> As molas s\u00e3o feitas de diversos materiais, embora o material mais comum seja o a\u00e7o inoxid\u00e1vel, tamb\u00e9m s\u00e3o utilizados pl\u00e1sticos ou ligas contendo carbono, cromo, sil\u00edcio ou outros componentes.<\/p>\n<p> Uma das caracter\u00edsticas da mola \u00e9 que quando ela \u00e9 comprimida ou alongada em rela\u00e7\u00e3o \u00e0 sua posi\u00e7\u00e3o de repouso, ela exerce uma for\u00e7a proporcional ao seu alongamento, mas na dire\u00e7\u00e3o oposta. A seguir veremos como \u00e9 calculada a for\u00e7a el\u00e1stica de uma mola.<\/p>\n<p> Esta particularidade faz com que a mola tenha muitas aplica\u00e7\u00f5es em engenharia. Geralmente, as molas s\u00e3o projetadas para fornecer resist\u00eancia ou amortecer tens\u00f5es externas. Abaixo tamb\u00e9m veremos para que serve uma mola.<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tipos-de-resortes\"><\/span> Tipos de molas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Os <strong>tipos de molas<\/strong> s\u00e3o:<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:14px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Mola de tens\u00e3o.<\/strong><\/span><\/li>\n<li style=\"margin-bottom:14px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Mola de compress\u00e3o.<\/strong><\/span><\/li>\n<li style=\"margin-bottom:14px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Mola de flex\u00e3o.<\/strong><\/span><\/li>\n<li style=\"margin-bottom:14px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Mola de tor\u00e7\u00e3o.<\/strong><\/span><\/li>\n<li style=\"margin-bottom:14px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>Outros tipos de molas.<\/strong><\/span><\/li>\n<\/ul>\n<p> Observe que geralmente os tipos de molas s\u00e3o classificados com base na for\u00e7a de carga aplicada a elas, mas tamb\u00e9m existem outros crit\u00e9rios para classific\u00e1-las em outros tipos diferentes.<\/p>\n<p> Abaixo voc\u00ea pode ver a explica\u00e7\u00e3o de cada tipo de mola, bem como um exemplo de foto para ver como \u00e9 cada tipo de mola.<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Resorte-de-traccion\"><\/span> Tens\u00e3o da mola<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> Como o nome sugere, a <strong>mola de tens\u00e3o<\/strong> funciona por tens\u00e3o, de modo que a mola se estica quando uma for\u00e7a \u00e9 aplicada a ela. Esses tipos de molas geralmente possuem um gancho em uma das extremidades para facilitar o estiramento ou a suspens\u00e3o de uma carga. <\/p>\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"290\" height=\"211\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/ressort-de-tension.jpeg\" alt=\"mola de tens\u00e3o\" class=\"wp-image-8748\"><\/figure>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Resorte-de-compresion\"><\/span> Mola de compress\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> <strong>As molas de compress\u00e3o<\/strong> s\u00e3o projetadas para comprimir, portanto, quanto mais for\u00e7a \u00e9 colocada na mola, mais ela comprime. A mola de compress\u00e3o \u00e9 usada no mecanismo de muitas m\u00e1quinas para amortecer cargas. <\/p>\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"274\" height=\"223\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/ressort-de-compression.jpeg\" alt=\"Mola de compress\u00e3o\" class=\"wp-image-8749\"><\/figure>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Resorte-de-flexion\"><\/span> mola de flex\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> A carga em uma <strong>mola flexora<\/strong> \u00e9 aplicada perpendicularmente. Assim, a mola absorve a carga dobrando-se e depois retorna \u00e0 sua forma original quando a for\u00e7a aplicada cessa. Este tipo de mola \u00e9 utilizado, por exemplo, na mec\u00e2nica de ve\u00edculos. <\/p>\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"372\" height=\"297\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/ressort-de-flexion.jpeg\" alt=\"mola de flex\u00e3o\" class=\"wp-image-8756\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/ressort-de-flexion-300x240.jpeg 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/ressort-de-flexion.jpeg 372w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Resorte-de-torsion\"><\/span> mola de tor\u00e7\u00e3o<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> Uma <strong>mola de tor\u00e7\u00e3o<\/strong> gira sobre si mesma durante seu trabalho, porque em vez de exercer uma carga axial, um torque \u00e9 aplicado a ela. Portanto, a extremidade deste tipo de mola gira quando uma carga \u00e9 aplicada a ela. <\/p>\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"420\" height=\"327\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/ressort-de-torsion.png\" alt=\"mola de tor\u00e7\u00e3o\" class=\"wp-image-8758\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/ressort-de-torsion-300x234.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/ressort-de-torsion.png 420w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Otros-tipos-de-resortes\"><\/span> Outros tipos de molas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> Por fim, deve-se destacar que tamb\u00e9m existem molas capazes de trabalhar com diversos tipos de esfor\u00e7os. Por exemplo, existem molas que podem operar tanto em tra\u00e7\u00e3o quanto em compress\u00e3o, ou mesmo em tor\u00e7\u00e3o. <\/p>\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"522\" height=\"362\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/autres-types-de-ressorts.jpeg\" alt=\"\" class=\"wp-image-8762\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/autres-types-de-ressorts-300x208.jpeg 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/autres-types-de-ressorts.jpeg 522w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Aplicaciones-del-resorte\"><\/span> aplica\u00e7\u00f5es de primavera<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> A mola tem muitas aplica\u00e7\u00f5es, tanto para uso di\u00e1rio como para uso industrial em ferramentas e m\u00e1quinas. Abaixo voc\u00ea pode ver para que serve uma mola.<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:20px\"> <span style=\"color:#101010;font-weight: normal;\">A mola ou mola pode ser utilizada para acionar, j\u00e1 que a energia acumulada pela compress\u00e3o da mola pode ser utilizada para alimentar dispositivos mec\u00e2nicos, como um rel\u00f3gio mec\u00e2nico. O acionamento para quando a mola relaxa novamente.<\/span><\/li>\n<li style=\"margin-bottom:20px\"> <span style=\"color:#101010;font-weight: normal;\">A for\u00e7a exercida por uma mola pode ser usada como contrafor\u00e7a, por exemplo, em balan\u00e7as de mola ou amortecedores.<\/span><\/li>\n<li style=\"margin-bottom:20px\"> <span style=\"color:#101010;font-weight: normal;\">A mola tamb\u00e9m \u00e9 utilizada no mecanismo dos ve\u00edculos, a embreagem de fric\u00e7\u00e3o ou os freios das portas incorporam molas para seu funcionamento.<\/span><\/li>\n<li style=\"margin-bottom:20px\"> <span style=\"color:#101010;font-weight: normal;\">As molas tamb\u00e9m podem ser combinadas para distribuir a carga aplicada, transformando assim a carga exercida sobre uma grande \u00e1rea numa carga mais uniforme. Por exemplo, muitos colch\u00f5es possuem molas embutidas para distribuir o peso corporal.<\/span><\/li>\n<li style=\"margin-bottom:20px\"> <span style=\"color:#101010;font-weight: normal;\">Por fim, as molas tamb\u00e9m s\u00e3o utilizadas para reduzir os efeitos do choque, pois podem atuar como amortecedores.<\/span> <\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fuerza-elastica-de-un-resorte\"><\/span>for\u00e7a el\u00e1stica de uma mola<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> A for\u00e7a el\u00e1stica, tamb\u00e9m chamada de for\u00e7a restauradora, \u00e9 a for\u00e7a exercida por uma mola el\u00e1stica quando ela se deforma. Mais precisamente, a for\u00e7a el\u00e1stica tem a mesma magnitude e dire\u00e7\u00e3o que a for\u00e7a que deformou a mola, mas sua dire\u00e7\u00e3o \u00e9 oposta. <\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-elastique.png\" alt=\"for\u00e7a el\u00e1stica de uma mola\" class=\"wp-image-4161\" width=\"640\" height=\"318\" srcset=\"https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-elastique-300x150.png 300w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-elastique-1024x511.png 1024w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-elastique-768x383.png 768w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-elastique-1536x767.png 1536w, https:\/\/physigeek.com\/wp-content\/uploads\/2023\/09\/force-elastique.png 1585w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\"><\/figure>\n<p> Para calcular a for\u00e7a el\u00e1stica exercida por uma mola, deve-se multiplicar a constante el\u00e1stica da mola pelo seu deslocamento e depois alterar o sinal do resultado. A <strong>f\u00f3rmula para a for\u00e7a el\u00e1stica de uma mola<\/strong> \u00e9, portanto, a seguinte:<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-b886155aaf78dae4ad0a70c38f91d77f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_e=-k\\cdot \\Delta x\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"104\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\"> Ouro: <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:8px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-88df03c55e081c7cd9da4e7d74ba7265_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"14\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a for\u00e7a el\u00e1stica, expressa em newtons. <\/span><\/li>\n<li style=\"margin-bottom:8px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-d42bc2203d6f76ad01b27ac9acc0bee1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"k\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a constante el\u00e1stica da mola, cujas unidades s\u00e3o N\/m.<\/span><\/li>\n<li><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-e936d3a449e3ecae93ebb5ae1e61feac_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\Delta x\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"25\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 o alongamento experimentado pela mola quando uma for\u00e7a externa \u00e9 aplicada, expresso em metros.<\/span><\/li>\n<\/ul>\n<p> <strong>Nota<\/strong> : O sinal negativo serve simplesmente para indicar que a dire\u00e7\u00e3o da for\u00e7a el\u00e1stica \u00e9 oposta \u00e0 for\u00e7a externa exercida na mola. O importante \u00e9 que o m\u00f3dulo da for\u00e7a el\u00e1stica seja equivalente \u00e0 constante el\u00e1stica multiplicada pelo deslocamento.<\/p>\n<p> Esta f\u00f3rmula \u00e9 conhecida como lei da elasticidade de Hooke.<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Energia-de-un-resorte\"><\/span> energia de uma mola<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Energia potencial el\u00e1stica, ou simplesmente energia el\u00e1stica, \u00e9 a energia acumulada no interior de uma mola devido ao trabalho realizado pela for\u00e7a que ela exerce. Assim, a energia potencial el\u00e1stica \u00e9 um tipo de energia potencial associada \u00e0 for\u00e7a el\u00e1stica de uma mola ou mola.<\/p>\n<p> A <strong>f\u00f3rmula para calcular a energia potencial el\u00e1stica de uma mola<\/strong> \u00e9:<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-f0484a83144d049d1a8a249dad110178_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"E_p=\\cfrac{1}{2}\\cdot k\\cdot x^2\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"108\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\"> Ouro: <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:8px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-09b2ab0fbfe1c76e7f3bf527fc17889c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"E_p\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"20\" style=\"vertical-align: -6px;\"><\/p>\n<p> \u00e9 a energia potencial el\u00e1stica da mola, cuja unidade no Sistema Internacional \u00e9 o joule (J). <\/span><\/li>\n<li style=\"margin-bottom:8px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-d42bc2203d6f76ad01b27ac9acc0bee1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"k\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a constante el\u00e1stica da mola, cujas unidades s\u00e3o N\/m.<\/span><\/li>\n<li><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7e5fbfa0bbbd9f3051cd156a0f1b5e31_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 a dist\u00e2ncia at\u00e9 a posi\u00e7\u00e3o de equil\u00edbrio, expressa em metros.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Este artigo explica o que \u00e9 uma mola, tamb\u00e9m chamada de mola. Al\u00e9m disso, voc\u00ea aprender\u00e1 sobre os diferentes tipos de molas e suas aplica\u00e7\u00f5es. O que \u00e9 uma primavera? Uma mola (ou mola ) \u00e9 um corpo met\u00e1lico dobrado em uma bobina que pode retornar \u00e0 sua forma ap\u00f3s ser comprimido ou expandido. Em &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/physigeek.com\/pt\/primavera\/\"> <span class=\"screen-reader-text\">Primavera<\/span> Leia mais &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[9],"tags":[],"class_list":["post-435","post","type-post","status-publish","format-standard","hentry","category-laboratorio"],"yoast_head":"<!-- This site is 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