{"id":13607,"date":"2022-04-01T10:00:31","date_gmt":"2022-04-01T14:00:31","guid":{"rendered":"https:\/\/www.purdue.edu\/freeform\/me274\/?p=13607"},"modified":"2024-10-17T16:23:00","modified_gmt":"2024-10-17T20:23:00","slug":"homework-h5-i","status":"publish","type":"page","link":"https:\/\/www.purdue.edu\/freeform\/me274\/chapter-5-discussion\/homework-h5-i\/","title":{"rendered":"Homework H5.B.22"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-13608\" src=\"https:\/\/www.purdue.edu\/freeform\/me274\/wp-content\/uploads\/sites\/15\/2022\/01\/Screen-Shot-2022-01-23-at-5.31.19-PM-300x81.jpg\" alt=\"\" width=\"452\" height=\"122\" srcset=\"https:\/\/www.purdue.edu\/freeform\/me274\/wp-content\/uploads\/sites\/15\/2022\/01\/Screen-Shot-2022-01-23-at-5.31.19-PM-300x81.jpg 300w, https:\/\/www.purdue.edu\/freeform\/me274\/wp-content\/uploads\/sites\/15\/2022\/01\/Screen-Shot-2022-01-23-at-5.31.19-PM-768x207.jpg 768w, https:\/\/www.purdue.edu\/freeform\/me274\/wp-content\/uploads\/sites\/15\/2022\/01\/Screen-Shot-2022-01-23-at-5.31.19-PM.jpg 936w\" sizes=\"auto, (max-width: 452px) 100vw, 452px\" \/><\/p>\n<p><em><strong>Discussion and hints:<\/strong><\/em><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" style=\"border: 1px solid #000000\" src=\"https:\/\/www.purdue.edu\/freeform\/me274\/wp-content\/uploads\/sites\/15\/2022\/01\/H5B_22.gif\" width=\"420\" height=\"427\" \/><\/p>\n<p>Recall the following <span style=\"text-decoration: underline\"><em>f<\/em><em>our-step plan<\/em><\/span> outline in the lecture book and discussed in lecture:<\/p>\n<p><em><strong>Step 1: FBDs<\/strong><\/em><br \/>\nDraw a <em>single<\/em> free body diagram for the system made up of links OA and AB, along with slider B,\u00a0<span style=\"text-decoration: underline\"><em>combined<\/em><\/span>.<\/p>\n<p><em><strong>Step 2: Kinetics (work\/energy)<\/strong><\/em><\/p>\n<ul>\n<li>Write down the kinetic expressions for the two links and the slider, individually, and then add those together to find the total KE for the system of your FBD. For each KE expression, recall that your reference point for the rotational component needs to be either the center of mass of the body, or a fixed point on the rigid body.<\/li>\n<li>Do the same for the potential energies, if needed: write down the PEs for each body individually and add together. Also, include the PE of the spring.<\/li>\n<li>Also, based on your FBD above, which, if any force or couple, does nonconservative work on the system in your FBD? Determine work for such a force\/couple.<\/li>\n<\/ul>\n<p><em><strong>Step 3: Kinematics<\/strong><\/em><br \/>\nWhere is the instant center (IC) for link AB for position 2? (Please refer back to Chapter 2 of the lecture book if you need to review locating ICs.) What does the location of this IC say about the angular speed of link AB? And, what does it say about the speeds of points A and B? Does the freeze frame image of the mechanism shown below agree with your analysis?<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" style=\"border: 1px solid #000000\" src=\"https:\/\/www.purdue.edu\/freeform\/me274\/wp-content\/uploads\/sites\/15\/2022\/01\/Screen-Shot-2022-01-23-at-5.41.33-PM.jpg\" width=\"464\" height=\"213\" \/><\/p>\n<p><em><strong>Step 4: Solve<\/strong><\/em><br \/>\nSolve your equations above for the speed of slider B.<\/p>\n<hr \/>\n<p>Any questions?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Discussion and hints: Recall the following four-step plan outline in the lecture book and discussed in lecture: Step 1: FBDs Draw a single free body diagram for the system made up of links OA and AB, along with slider B,\u00a0combined. Step 2: Kinetics (work\/energy) Write down the kinetic expressions for the two links and the &hellip; <a href=\"https:\/\/www.purdue.edu\/freeform\/me274\/chapter-5-discussion\/homework-h5-i\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Homework H5.B.22<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":10,"featured_media":0,"parent":14985,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-13607","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.purdue.edu\/freeform\/me274\/wp-json\/wp\/v2\/pages\/13607","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.purdue.edu\/freeform\/me274\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.purdue.edu\/freeform\/me274\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.purdue.edu\/freeform\/me274\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/www.purdue.edu\/freeform\/me274\/wp-json\/wp\/v2\/comments?post=13607"}],"version-history":[{"count":5,"href":"https:\/\/www.purdue.edu\/freeform\/me274\/wp-json\/wp\/v2\/pages\/13607\/revisions"}],"predecessor-version":[{"id":15169,"href":"https:\/\/www.purdue.edu\/freeform\/me274\/wp-json\/wp\/v2\/pages\/13607\/revisions\/15169"}],"up":[{"embeddable":true,"href":"https:\/\/www.purdue.edu\/freeform\/me274\/wp-json\/wp\/v2\/pages\/14985"}],"wp:attachment":[{"href":"https:\/\/www.purdue.edu\/freeform\/me274\/wp-json\/wp\/v2\/media?parent=13607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}