The result shows that: because of steel truss bridge's small torsional rigidity, bending-torsion coupling vibration of steel truss bridge exerts great influence on dynamic analysis.
计算表明：由于钢桁梁桥的抗扭刚度较小，曲线钢桁梁桥的弯扭耦合作用对动力分析有很大的影响。
Torsional rigidity is vital to minimise the scuttle shake associated with most convertible cars and to help maintain the car's dynamic composure.
对于大多数敞篷车，扭转刚性对减小风挡振动和保持动态稳定性特别重要。
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