{"id":498473,"date":"2022-10-05T17:57:04","date_gmt":"2022-10-05T14:57:04","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/computationally-predicting-where-wear-will-occur-in-engines\/"},"modified":"2022-10-05T17:57:04","modified_gmt":"2022-10-05T14:57:04","slug":"computationally-predicting-where-wear-will-occur-in-engines","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/computationally-predicting-where-wear-will-occur-in-engines\/","title":{"rendered":"#Computationally predicting where wear will occur in engines"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a39addc9ee23\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a39addc9ee23\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/computationally-predicting-where-wear-will-occur-in-engines\/#%E2%80%9CComputationally_predicting_where_wear_will_occur_in_engines%E2%80%9D\" >&#8220;Computationally predicting where wear will occur in engines&#8221;<\/a><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CComputationally_predicting_where_wear_will_occur_in_engines%E2%80%9D\"><\/span>&#8220;Computationally predicting where wear will occur in engines&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2022\/computationally-predic.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/2022\/computationally-predic.jpg\" data-sub-html=\"A fluid lubrication calculation model between piston pin and connecting rod. Credit: Jun Ishimoto\">\n<figure class=\"article-img\">\n            <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2022\/computationally-predic.jpg\" alt=\"Computationally predicting where wear will occur in engines\" title=\"A fluid lubrication calculation model between piston pin and connecting rod. Credit: Jun Ishimoto\" width=\"800\" height=\"372\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                A fluid lubrication calculation model between piston pin and connecting rod. Credit: Jun Ishimoto<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>A research group has created an analysis method to predict wear and seizure locations in the sliding parts of engine piston pins. The breakthrough will help limit wear and tear on transportation and industrial machinery components and make them more fuel efficient.<\/p>\n<p>                                                                                Details of their discovery were published in the <i>Journal of Tribology<\/i>.<\/p>\n<p>Improvements to the efficiency of internal combustion engines are necessary if we are to overcome their environmental and sustainability problems. Reciprocating engines use reciprocating pistons to extract power from combustion and convert it into rotational motion. They are commonly used in automobiles.<\/p>\n<p>The most common cause of reciprocating engine failure occurs when the oil film of the lubricating oil breaks, causing metal parts to come into contact, resulting in scratching and sticking. When such a seizure h<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>ens, it is impossible to start the engine.<\/p>\n<p>Piston pins and connecting rods in constant reciprocating and rotating motion require fluid lubrication. However, long-term loading tests are needed to verify the wear and seizure locations in fluid lubrication, and predicting or calculating this was thought to be unattainable.<\/p>\n<p>That was until Professor Jun Ishimoto led a group at Tohoku University&#8217;s Institute of Fluid <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/sciencee\/\" data-internallinksmanager029f6b8e52c=\"5\" title=\"Science\" target=\"_blank\" rel=\"noopener\">Science<\/a> and Honda Motor Co., Ltd. that established the multiphase fluid-structure coupled analysis method. It not only simulated and predicted tribological properties under severe loading conditions but also identified the piston pin&#8217;s bow-like defamation as the cause of mechanical contact and seizure at the connecting rod edge.<\/p>\n<p>&#8220;Proper safety guidelines that help prevent unnecessary damage to automobile engines and other industrial machinery will be easier to create thanks to this prediction method,&#8221; said Ishimoto.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2022\/computationally-predic-1.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/2022\/computationally-predic-1.jpg\" data-sub-html=\"The researchers succeed in computationally predicting the wear and seizure locations in sliding parts of engine piston pins. Results show the coupled 3D multiphase fluid-structure analyses, factoring in the elastic deformation of both the piston-pin and connecting rod, and also the thin-film cavitation lubrication with an unsteady flow channel variation. Credit: Jun Ishimoto\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2022\/computationally-predic-1.jpg\" alt=\"Computationally predicting where wear will occur in engines\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                The researchers succeed in computationally predicting the wear and seizure locations in sliding parts of engine piston pins. Results show the coupled 3D multiphase fluid-structure analyses, factoring in the elastic deformation of both the piston-pin and connecting rod, and also the thin-film cavitation lubrication with an unsteady flow channel variation. Credit: Jun Ishimoto<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<hr\/>\n<div class=\"article-main__explore my-4 d-print-none\">\n<p>                                            <a rel=\"nofollow noopener\" target=\"_blank\" class=\"text-medium text-info mt-2 d-inline-block\" href=\"https:\/\/phys.org\/news\/2019-02-pinnacle-efficient-low-emission-gasoline-supercomputing.html\">Pinnacle Engines develops efficient, low-emission gasoline engine using supercomputing<\/a>\n                                        <\/div>\n<hr class=\"mb-4\"\/>\n<div class=\"article-main__more p-4\">\n                                                                                                <strong>More information:<\/strong><br \/>\n                                                Yudai Narumi et al, Computational Fluid\u2013Structure Interaction Analysis of Piston Pin Multiphase Elastohydrodynamic Lubrication with Unsteady Flow Channel Variation, <i>Journal of Tribology<\/i> (2022).  <a rel=\"nofollow noopener\" target=\"_blank\" data-doi=\"1\" href=\"https:\/\/dx.doi.org\/10.1115\/1.4055407\">DOI: 10.1115\/1.4055407<\/a><\/p><\/div>\n<div class=\"d-inline-block text-medium my-4\">\n                                                Provided by<br \/>\n                                                                                                    Tohoku University<br \/>\n                                                                                                        <a rel=\"nofollow noopener\" target=\"_blank\" class=\"icon_open\" href=\"http:\/\/www.tohoku.ac.jp\/english\/\"><br \/>\n                                                        <svg>\n                                                            <use href=\"https:\/\/techx.b-cdn.net\/tmpl\/v2\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/>\n                                                        <\/svg><br \/>\n                                                    <\/a><\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>                                                 <strong>Citation<\/strong>:<br \/>\n                                                 Computationally predicting where wear will occur in engines (2022, October  5)<br \/>\n                                                 retrieved  5 October 2022<br \/>\n                                                 from https:\/\/techxplore.com\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2022-10-computationally.html<\/p>\n<p>                                            This document is subject to copyright. 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Credit: Jun Ishimoto A research group has created an analysis method to predict wear and seizure locations in the sliding parts of engine piston pins. The breakthrough will help limit wear and tear on transportation and&#8230;<\/p>\n","protected":false},"author":1,"featured_media":498474,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/2022\/computationally-predic.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-498473","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/498473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=498473"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/498473\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/498474"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=498473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=498473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=498473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}