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为什么弹簧有效圈数越大弹力越小

更新时间: 2020-09-19 00:00:00     

根据胡克定律,在一定范围内,弹簧的劲度系数不变,弹簧所产生的弹力由伸长量来决定。弹簧的圈数越大,弹簧可以压缩的空间越小,由于圈与圈之间存在相互作用,所是弹簧总体伸长量减小,故在一定范围内,才会遵循胡克定律。超出弹性限度时,弹力就相对减小了。

关键词: 为什么 弹簧 有效 弹力

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