有關流體力學問題 - 土木
By Zora
at 2013-01-29T08:28
at 2013-01-29T08:28
Table of Contents
小弟最近讀到一本流體力學詳解(作者:PAO)
裡面的靜力學部份,題目如下:
http://ppt.cc/Es3d
對於它的詳解有三個疑問
1.他的y1c.p.最後解出來竟然是5,過程中他還加3
小弟我個人覺得加3是不對的
2.浮力做用點的位置,小弟我實在看不懂為何他會這樣列式
是否有高手可以提示嗎？
3.他最後的答案,與小弟我解的最後轉矩答案不一樣
所以小弟我把詳解再解一次,差別是小弟我把浮力分左半球跟右半球兩部分去解(不知道
這樣的觀念是否有誤)最後再合起來
http://ppt.cc/8qWK
是否有高手可以給與指教....謝謝
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土木
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