3229| 6
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擺臂彈簧如何平衡重量 |
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點評
假設(shè)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(shè)60,假設(shè)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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