dimensionless frequency meaning in English
土的动力性质无量纲频率
无量纲频率
Examples
- In this paper , the theory for lateral vibration of pile foundation with consideration of shear deformation of pile is established , and the influence of the ratio of pile length to its diameter , the ratio of pile stiffness to soil stiffness and dimensionless frequency were studied systemically
本文建立了一整套考虑桩体剪切变形的桩基水平振动分析理论，并较系统地研究了桩的长径比、桩土刚度比、激振频率等因素对桩基水平动力响应的影响。 - The main work includes : for the torsional vibrations of a rigid disk on saturated media , first , the dynamic governing equations are solved by the use of hankel transform and the general solutions in the hankel transform fields are formulated . then , considering the mixed boundary - value condition , the dual integral equations of the torsional vibrations of a rigid disk on saturated grounds are obtained , which can be reduced to the fredholm integral equations of the second kind and solved by numerical procedures . consequently , the dynamic compliance coefficient curves and the torsional angle amplitude curves versus the dimensionless frequency are presented and contrasted to that of the elastic one
在前人研究的基础上，本文基于陈龙珠等曾提出的一组实用饱和土波动方程，用解析或半解析的方法首次较系统而深入地研究了饱和半空间地基与基础的扭转振动问题，主要工作有：对于饱和地基上刚性圆板的扭转振动，作者首先采用hankel变换求解了动力控制方程，得到了该控制方程在hankel变换域内的通解，然后由混合边值条件建立了饱和地基上刚性基础扭转振动时的对偶积分方程，并将其化为易于数值求解的第二类fredholm积分方程，用数值方法计算了基础的动柔度和扭转角幅值与振动频率的关系曲线，并将其与单相弹性介质情况进行了对比分析。 - In this paper , dynamic stability of parametrically excited flexible cam - follower system on the weakly nonlinear condition is investigated by using the combination of both the method of multiple scales and the technique of fourier series expansion . the equations of approximate transition curves in the plane of the dimensionless frequency and excitation ( amplitude ) parameter that separate stable from unstable solution are derived
随后，本文采用多尺度法并结合fourier级数展开，分析了不同的凸轮从动件运动规律和不同的凸轮的升程、停程以及回程的时间分配规律下，无间隙的周期时变凸轮系统模型的稳定性，获得了各种规律下的凸轮系统的稳定区间图。