{"id":81,"date":"2018-08-09T13:01:49","date_gmt":"2018-08-09T13:01:49","guid":{"rendered":"http:\/\/commons.princeton.edu\/56-terrier\/?p=81"},"modified":"2018-08-15T13:39:26","modified_gmt":"2018-08-15T13:39:26","slug":"class-14","status":"publish","type":"post","link":"https:\/\/commons.princeton.edu\/56-terrier\/2018\/08\/09\/class-14\/","title":{"rendered":"Class 14"},"content":{"rendered":"<p>Bill Becker Talk<\/p>\n<div>\n<div>\n<div><b>Lab Updates:<\/b><\/div>\n<div>Bottom End: Cleaned parts, tested the threads on the engine case, finished the gasket, flywheel: It ended up being off.<\/div>\n<div>Top End: finished cutting the valves, ready to assemble the top end.<\/div>\n<div>Frames, forks and wheels: Priming the triple tree, found all the parts for the wheels, cleaned the bearings out. Finished sanding the nacelle.<\/div>\n<div>Electrical: looked at the rectifier and the switch.<\/div>\n<div><b>Who is he?<\/b><\/div>\n<div>Retired architect now builds motorcycles. Recently finished 1961 ducati<\/div>\n<div><b>His talk:<\/b><\/div>\n<div>&#8211; Principals of engineering<\/div>\n<div>&#8211; Motorcycle wheel involves a lot of different principles<\/div>\n<div>&#8211; 1. Physics: Mass related to the weight of objects. Property called mass and we can define how objects behave according to their mass.<\/div>\n<div>&#8211; Weight is not your friend because you are fighting the mass of the objects.<\/div>\n<div>&#8211; Materials that are involved in the wheel:<\/div>\n<ul>\n<li>o 11 materials in the wheel.<\/li>\n<li>o Picking materials is like picking an Olympic team. Diversity.<\/li>\n<\/ul>\n<div>&#8211; Properties to be concerned with when it comes to materials:<\/div>\n<ul>\n<li>o Strength, flexibility, weight hardness and softness, workability, conductivity, cost, availability<\/li>\n<\/ul>\n<div>&#8211; The hub:<\/div>\n<ul>\n<li>o Made out of aluminum.<\/li>\n<li>o Properties: it is lighter than steel, cheap, castability, doesn\u2019t rust.<\/li>\n<\/ul>\n<div>&#8211; The spokes:<\/div>\n<ul>\n<li>o Made out of stainless steal.<\/li>\n<li>o Properties: Does not rust. Steal is a very strong material.<\/li>\n<\/ul>\n<div>&#8211; Cast Iron:<\/div>\n<ul>\n<li>o Properties: pores, stays lubricated, cylinder head made out of cast iron because it is a very good conductor of heat<\/li>\n<\/ul>\n<div>&#8211; Rim made out mild steal<\/div>\n<div>&#8211; Tire made out of rubber:<\/div>\n<ul>\n<li>o it is flexible, gas inside of inner tube in the tire. Inside tire is polyester<\/li>\n<li>o Steel cable is casted into the rubber.<\/li>\n<li>o Ball bearings are steel.<\/li>\n<\/ul>\n<div>Strength of materials:<\/div>\n<div>&#8211; Basic forces acting on structural elements<\/div>\n<ul>\n<li>o Compression (squeezing)<\/li>\n<li>o Tension (stretching)<\/li>\n<li>o Bending (resolution of compression and tension)<\/li>\n<li>o Shear (cutting\/tearing force)<\/li>\n<\/ul>\n<div>&#8211; Forces acting on a wheel<\/div>\n<ul>\n<li>o Gravity<\/li>\n<li>o Impact<\/li>\n<li>o Acceleration<\/li>\n<li>o decel\/breaking<\/li>\n<li>o Turning forces<\/li>\n<\/ul>\n<div>&#8211; When you push down on the axel top spokes are getting stretched and bottom spokes are getting squeezed<\/div>\n<div>&#8211; Spoke is only good at being stretched, very strong<\/div>\n<div><\/div>\n<div>Next Weeks Reading Assignment:<\/div>\n<div>Combustion chemistry and tiger cub calculations documents found in the data section of our webpage<\/div>\n<div>Next scribe: Mariana<\/div>\n<div>Hilary Lloyd<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Bill Becker Talk Lab Updates: Bottom End: Cleaned parts, tested the threads on the engine case, finished the gasket, flywheel: It ended up being off. Top End: finished cutting the valves, ready to assemble the top end. Frames, forks and wheels: Priming the triple tree, found all the parts for the wheels, cleaned the bearings &hellip; <a href=\"https:\/\/commons.princeton.edu\/56-terrier\/2018\/08\/09\/class-14\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Class 14&#8221;<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-81","post","type-post","status-publish","format-standard","hentry","category-diary"],"_links":{"self":[{"href":"https:\/\/commons.princeton.edu\/56-terrier\/wp-json\/wp\/v2\/posts\/81","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/commons.princeton.edu\/56-terrier\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/commons.princeton.edu\/56-terrier\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/commons.princeton.edu\/56-terrier\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/commons.princeton.edu\/56-terrier\/wp-json\/wp\/v2\/comments?post=81"}],"version-history":[{"count":1,"href":"https:\/\/commons.princeton.edu\/56-terrier\/wp-json\/wp\/v2\/posts\/81\/revisions"}],"predecessor-version":[{"id":82,"href":"https:\/\/commons.princeton.edu\/56-terrier\/wp-json\/wp\/v2\/posts\/81\/revisions\/82"}],"wp:attachment":[{"href":"https:\/\/commons.princeton.edu\/56-terrier\/wp-json\/wp\/v2\/media?parent=81"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/commons.princeton.edu\/56-terrier\/wp-json\/wp\/v2\/categories?post=81"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/commons.princeton.edu\/56-terrier\/wp-json\/wp\/v2\/tags?post=81"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}