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机动翻斗车的振动性能对其质量有重要影响。本文试图给出机动翻斗车振动参数(固有频率、振幅)的计算公式,并探讨减小机动翻斗车振动的方法。在微小振幅内的振动可看作线性振动。线性振动问题可采用解线性微分方程(组)或矩阵的办法来解决。用解线性微分方程的方法解决多自由度振动系统较繁,故本文采用矩阵方法。为了简化计算,我们把机动翻斗车的振动看成质系沿铅垂方向、纵向和横向的振动及绕这三个轴的转动,即有六个自由度。但在翻斗
The vibration performance of mobile dump trucks has an important impact on its quality. This paper attempts to give the calculation formula of vibration parameters (natural frequency, amplitude) of mobile dump truck, and discusses the method to reduce the vibration of mobile dump truck. Vibration within a small amplitude can be regarded as a linear vibration. Linear vibration problems can be solved using linear differential equations (groups) or matrices. Solving the multi-degree-of-freedom vibration system by using the method of solving linear differential equations is complicated, so this paper uses the matrix method. In order to simplify the calculation, we regard the vibration of a mobile dump truck as a series of vibrations along the vertical, vertical and horizontal directions and the rotation about these three axes, ie, six degrees of freedom. But in the dump