振动测试中分别采用加速度传感器进行位移模态分析以及电阻应变片进行应变模态分析。
Acceleration sensor is used to test modal displacement, and strain sensors are used to test modal strain.
针对工程实践中常见的桥梁问题，建立了其在自由振动下的模型，分析了其前几阶振动模态下的振形和动态应变分布。
Aimed at popular bridge in the engineering, we build a piezoelectric bridge vibration model and analyze the vibration shape and distribution of the dynamic strain.
分析了在惯性载荷作用下的弹性梁的应力及应变，并对弹性结构进行了模态分析。
Stress and strain of elastic beam under inertial load was analyzed, and modal analysis of elastic structure was figured out.
采用动态应变测试和试验模态分析法对QTZ80型塔式起重机进行振动测试和分析，并通过实验结论验证其理论分析的正确性。
Vibration measurement and analysis of QTZ80 tower crane is conducted through dynamic strain test and experimental mode analysis. The correctness of theoretical analysis has been proved by the results.
采用动态应变测试和试验模态分析法对QTZ80型塔式起重机进行振动测试和分析，并通过实验结论验证其理论分析的正确性。
Vibration measurement and analysis of QTZ80 tower crane is conducted through dynamic strain test and experimental mode analysis. The correctness of theoretical analysis has been proved by the results.
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