when the excitation frequency is relatively low, the material damping of inner region has negligible influence on the real stiffness of the soil.
当激振频率较小时,内部区域土体材料阻尼对土体扭转阻抗的刚度部分基本没有影响。
the results show that the voltage standing wave effects become the important factor affecting non-uniform voltage distribution when the electrode dimensions and excitation frequency are increased.
the analysis shows that increasing the excitation frequency of the source reduces the decay rate of the ground vibration.
分析表明,对理想弹性半空间来说,增大扰频会减小地面波动衰减率。
the design variables include the excitation frequency and the stiffness of vibration isolation system.
系统研究了不同激振频率对焊接残余应力降低程度的影响。
synchronous rectification produces a ripple frequency twice that of the excitation frequency and thus is easier to remove with a lowpass filter.
同步稳压产生两倍激励频率纹波频率,因此更容易被低通滤波器去除。
the result indicates that resonance happens only when the excitation frequency is equal to a certain inherent frequency . moreover the result is analyzed essentially.
结果表明,只有当激励频率等于某一固有频率时,才会发生共振。
the experiment proved that the gear meshing force, excitation frequency is consistent with the theory. consistent with the actual prototype model is feasible.
通过实验证明齿轮的啮合力、激振频率均与理论相符,样机模型与实际吻合,具有可行性。
design cars, the natural frequencies should be staggered so that the excitation frequency to avoid resonance and noise.
设计车厢时,应尽量使其固有频率错开激振频率,以避免共振和噪声。
the damping characteristic is relevant with the air spring structure and is influenced by external excitation frequency and amplitude.