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[考題] 機械原理 問題
Jun 11th 2014, 17:52, by Douglass

作者Douglass (^___^)

看板Examination

標題[考題] 機械原理 問題

時間Wed Jun 11 17:52:55 2014

[考題] 國考歷屆考題與考題觀念討論(書裡看到的選這個)請附上想法、出處 關於凸輪從動件的運動，下列敘述何者錯誤？　 (A)簡諧運動的時間-位移線圖為正弦曲線　 (B)等加速度運動的位移變化量成等差級數，其時間－位移線圖為拋物線　 (C)等速運動因瞬間加速度變化過大而造成振動與衝擊，僅適用於凸輪低速運轉之場合　 (D)修正等速運動沒有瞬間加速度變化過大而造成振動與衝擊，適用於凸輪高速運轉。 如題，答案是A、D。只是不懂為啥A錯哩@@? 有人幫忙解答一下嗎？謝謝！ -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 1.163.146.106 ※ 文章網址: http://www.ptt.cc/bbs/Examination/M.1402480378.A.5B6.html

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