虛功原理考題 - 考試
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By Elvira
at 2013-05-16T19:17
at 2013-05-16T19:17
Table of Contents
題目:please derive the expression of the equilibrium angle for a given value
of M by using the method of virtual work.
http://www.wretch.cc/album/show.php?i=syounihon47&b=19&f=1747425760&p=2
此題我的想法如下:
1.選取θ為廣義座標
2.座標的零點設定為B點處。
如圖三角形所示,mg的作用點位置y不知道該怎麼假設?!
解答是寫y=b*cosθ,但我看圖就一直覺得怪怪的
怎麼看C跟G都有一段距離不是嗎?
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By Christine
at 2013-05-19T04:18
at 2013-05-19T04:18
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By Blanche
at 2013-05-22T14:03
at 2013-05-22T14:03
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By Emma
at 2013-05-25T00:10
at 2013-05-25T00:10
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