关键词: 液压悬置；动刚度；阻尼角；数学模型

Abstract: Hydro mount, as an important engine shake reduce device, the principle is to combine the spring and the damper into a compact unit, and the performance of the spring and the damper can be adjusted independently to achieve the ideal shake reduce effect. Based on the working principle of hydraulic mount, the paper explores the mathematical model of hydro mount and provide the theoretical calculation method of hydraulic mount damping peak value and damping angle. By the comparison between test and calculation indicates that the theoretical calculation method can predict the vibration response of the hydro mount. In addition, based on mathematic modal, this study analyzes the influence of the parameters of the mount on the dynamic characteristics of the hydraulic mount is given. These analysis results can provide theoretical guidance for the design and optimization of hydro mounts.

Key words: hydro mount; dynamic stiffness; loss angel; mathematical model