研究结构承受动载荷的能力。这种能力对于冲击环境是用冲量或能量来衡量的，不用载荷表示。动强度研究还包括结构的动力特性（固有模态、固有频率、阻尼等）、结构在动载荷作用下的应力与变形等响应、结构的运动稳定性和结构耐振动冲击环境的能力。
本文通过自行车的野外骑行实验和数理统计分析，论述了自行车骑行时的动强度问题。
According to the experiments of bicycles under riding in the field and analysis of mathematical statistics, the dynamic strength of bicycles was Studied.
为了加强大型石油储罐的安全可靠性，开展了静强度下的结构分析和动载荷下的抗震研究。
To reinforce the safety and reliability of large oil storage tanks, structural analysis under statically-strength and aseismatic research under dynamically-loading were done.
基于试验结果分析了细粒含量变化对粉土动强度的影响；
The influence of fines on the dynamic strength is studied based on the liquefaction tests.
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