The tower crane boom structural design and mechanical analysis, finite element method can be regarded as a good way.
对于动臂塔机的结构设计和力学分析，有限元法不失为一种好方法。
Balance weight block installation position is not accurate, will cause the boom and the balance arm balance torque deviation is too large, easily lead to instability of the tower crane.
平衡重块安装位置不准确，会造成起重臂与平衡臂平衡力矩偏差过大，轻易造成塔吊失稳。
According to actual elements of two-hanging point horizontal boom of tower crane, the linearity and, nonlinearity were calculated and the calculated results were analyzed.
本文根据某塔机的双吊点水平动臂的实际参数，进行了其线性和非线性计算，并对其结果进行了较分析。
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