{"id":532756,"date":"2022-12-30T21:36:03","date_gmt":"2022-12-30T18:36:03","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/further-optimizing-car-brakes-using-a-neutron-detector\/"},"modified":"2022-12-30T21:36:03","modified_gmt":"2022-12-30T18:36:03","slug":"further-optimizing-car-brakes-using-a-neutron-detector","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/further-optimizing-car-brakes-using-a-neutron-detector\/","title":{"rendered":"#Further optimizing car brakes using a neutron detector"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 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-6a24bfb8eb58c\" 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-6a24bfb8eb58c\" 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\/further-optimizing-car-brakes-using-a-neutron-detector\/#%E2%80%9CFurther_optimizing_car_brakes_using_a_neutron_detector%E2%80%9D\" >&#8220;Further optimizing car brakes using a neutron detector&#8221;<\/a><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CFurther_optimizing_car_brakes_using_a_neutron_detector%E2%80%9D\"><\/span>&#8220;Further optimizing car brakes using a neutron detector&#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\/further-optimising-car.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2022\/further-optimising-car.jpg\" data-sub-html=\"The analyses were carried out on the Swiss Spallation Neutron Source SINQ in a test apparatus specially made for the experiments. Among other things, various operating scenarios were simulated by increasing the temperature with a fan heater. Credit: ANAXAM\">\n<figure class=\"article-img\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2022\/further-optimising-car.jpg\" alt=\"Further optimising car brakes\" title=\"The analyses were carried out on the Swiss Spallation Neutron Source SINQ in a test apparatus specially made for the experiments. Among other things, various operating scenarios were simulated by increasing the temperature with a fan heater. Credit: ANAXAM\" width=\"800\" height=\"530\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                The analyses were carried out on the Swiss Spallation Neutron Source SINQ in a test <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>aratus specially made for the experiments. Among other things, various operating scenarios were simulated by increasing the temperature with a fan heater. Credit: ANAXAM<br \/>\n            <\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>Human lives depend on brakes. They need to grip quickly and return to their resting position im<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/social-mediaa\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Social Media\" target=\"_blank\" rel=\"noopener\">media<\/a>tely once the brake pedal is released. If they do not return fully, energy losses may occur. This is not noticeable to the driver and it doesn&#8217;t affect the function of the brake. It can, however, increase a vehicle&#8217;s carbon footprint.<\/p>\n<p>                                                                                Researchers at the Paul Scherrer Institute PSI and employees of ANAXAM and the industrial partner Audi Sport have been exploring this phenomenon. They used neutrons from the Swiss Spallation Neutron Source SINQ at PSI to look inside a brake caliper, thereby demonstrating a way of visualizing and optimizing the movement of the brake pistons. The brake caliper grips the rotating brake disc like pincers. When the driver presses the brake pedal, the hydraulic pressure from the brake line pushes a number of pistons forward, which squeeze the two brake pads\u2014one on either side\u2014up against the brake disc, whereupon the high frictional forces bring the disc to a stop.<\/p>\n<p>ANAXAM in Villigen is a center for <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/technology\/\" data-internallinksmanager029f6b8e52c=\"4\" title=\"Technology\" target=\"_blank\" rel=\"noopener\">technology<\/a> transfer, co-founded by PSI, which supports industrial companies wanting to use PSI&#8217;s research infrastructure. The industrial partner in this project was Audi Sport. Mathias Kolb, a development engineer at Audi Sport in Neckarsulm, Germany, had contacted his former colleague Matthias Wagner, now a senior engineer at ANAXAM. Together with David Mannes from PSI, they came up with a method that allows them to look inside the brake caliper in real time and search for ways of optimizing it. This has now been achieved for the first time at PSI.<\/p>\n<p><b>Using neutrons to improve car brakes<\/b><\/p>\n<p>The partners quickly realized that X-rays were ruled out by the fact that they are unable to penetrate metals. Neutrons are different: the aluminum of the brake caliper is almost transparent to them, yet at the same time they are highly sensitive to light chemical elements. This means that brake fluid, which contains hydrogen compounds, is clearly visible in the image. <\/p>\n<p>PSI provided the neutron beamline and its know-how for the experiments, which began in 2021 and were completed this year. The experiment was conducted at the Neutra beamline of the spallation source SINQ. A detector recorded the neutrons passing through the apparatus and ultimately produced a two-dimensional image from within the brake caliper.<br \/>\n                                            <!-- Google middle Adsense block --><\/p>\n<p>ANAXAM mounted a brake caliper in front of the detector. The set-up was supplemented by a specially designed hydraulic system that produces realistic braking pressures of up to 100 bar. A climate chamber allowed the temperature of the brake caliper to be carefully controlled, simulating various operating conditions. Unlike on the road, the brake disc did not rotate during the tests. <\/p>\n<p>&#8220;This, however, could be an option for future tests, to achieve even more precise results,&#8221; says Matthias Wagner from ANAXAM. That will probably not be necessary, though, because the completed <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/watch-movies-tv-seriess\/\" data-internallinksmanager029f6b8e52c=\"8\" title=\"Watch Movies &amp; TV Series\" target=\"_blank\" rel=\"noopener\">series<\/a> of measurements has already yielded numerous interesting findings.<\/p>\n<p><b>The clearance is crucial<\/b><\/p>\n<p>The images recorded by the detector demonstrate impressively what neutron imaging is capable of. The brake caliper is clearly visible, with its six hydraulic pistons\u2014three on each side. So are the tiniest deviations in the <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/trip-and-travel\/\" data-internallinksmanager029f6b8e52c=\"10\" title=\"Trip &amp; Travel\" target=\"_blank\" rel=\"noopener\">travel<\/a> of the pistons. <\/p>\n<p>Here, it becomes apparent that the clearance of the lower piston actuating the outer brake pad\u2014that is the distance between the brake pad in its resting position and the brake disc\u2014is correct at 0.4 millimeters, whereas the other five pistons have a clearance of less than 0.3 millimeters. The investigators were also able to measure precisely how the brake caliper, shaped like pincers, bends outwards when the two brake pads exert pressure on it.<\/p>\n<p>This project is a good example of how the scientific know-how of PSI and the competencies of ANAXAM can further improve a product that has already proven itself in series production. The industrial partner has further optimized the operation of the brake pistons, such that the clearance of the three pistons on the inner side of the brake caliper has now been increased by 0.1 millimeters when viewed under the neutron beam. This reliably separates the brake pads from the brake disc when the brakes are released. David Mannes from PSI says, &#8220;Our research can contribute to reducing the CO<sub>2<\/sub> emissions of road vehicles.&#8221;<\/p>\n<div class=\"d-inline-block text-medium my-4\">\n                                                Provided by<br \/>\n                                                                                                    Paul Scherrer Institute<br \/>\n                                                                                                        <a rel=\"nofollow noopener\" target=\"_blank\" class=\"icon_open\" href=\"http:\/\/www.psi.ch\/\"><br \/>\n                                                        <svg><use href=\"https:\/\/techx.b-cdn.net\/tmpl\/v2\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/><\/svg><\/a><\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>                                                <strong>Citation<\/strong>:<br \/>\n                                                Further optimizing car brakes using a neutron detector (2022, December 30)<br \/>\n                                                retrieved 30 December 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>\/2022-12-optimizing-car-neutron-detector.html<\/p>\n<p>                                            This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no<br \/>\n                                            part may be reproduced without the written permission. The content is provided for information purposes only.<\/p><\/div>\n<\/p><\/div>\n<p><script id=\"facebook-jssdk\" async=\"\" src=\"https:\/\/connect.facebook.net\/en_US\/sdk.js\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. 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Among other things, various operating scenarios were simulated by increasing the temperature with a fan heater. Credit: ANAXAM Human lives depend on brakes. They need to&#8230;<\/p>\n","protected":false},"author":1,"featured_media":532757,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2022\/further-optimising-car.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-532756","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\/532756","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=532756"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/532756\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/532757"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=532756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=532756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=532756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}