3454| 6
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擺臂彈簧如何平衡重量 |
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點評
假設就按我理解的計算,題目中還缺少一個彈簧的力臂無法計算,目測假設60,假設擺臂均勻,根據(jù)支點平衡則有:5000KN×600=60×F,則彈簧拉力等于50000KN,用液壓缸吧。
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