The results of these models, including natural vibration period, displacement, internal force at the bottom, stiffness, are then compared.
从自振周期、位移、底部内力、刚度等多方面对将两种模型的计算结果进行了分析对比。Accordingly leads to a new topic: structural natural periods greater, more intense seismic response, seismic measures more complex.
相应的也引出了新的课题：结构自振周期更大，地震响应更加强烈，抗震措施更加复杂。Structural self-vibration characteristic test is one of the most important contents of continuous curved railway bridge quality evaluation.
结构自振特性试验是铁路连续弯梁桥试验的一项重要内容。Through evaluating the machining characteristics, the transistor type impulse generator has been proved to be suitable for micro-EDM.
实验结果表明，自振式晶体管脉冲电源因其加工速度慢并不适于微细放电加工。Finally, the test date analysis showed that the natural frequency of the structure decrease with the temperature increase.
最后，通过对试验数据的分析，得出结构的各阶自振频率随着温度的升高而降低等结论。The transverse self oscillation characteristics of a spinning rocket in flight was studied.
本文研究大长径比自旋弹箭在飞行时横向振动的自振特性。And the discrepancy of the response spectrums mainly happens near the natural vibration frequency.
此时压差系数传递函数频谱曲线的偏差主要集中在自振频率附近。Frequencies of different mode steps, modes and damp ratios of the model were tested by ambient excitation method and sine excitation method.
利用人工正弦激励和环境激励两种方法测得模型的多阶自振频率、振型、阻尼比。Stability and primary dynamic performance of local double-layer triaxial cylindrical grid structure were further analyzed.
此外还对优化后的三向圆柱面网格结构的稳定性能和自振特性做了进一步的研究。