摘要
采用集总参数法和键合图法建立了惯性通道式、解耦盘惯性通道式以及节流盘解耦盘惯性通道式三种液阻悬置的动力学模型,建立了状态空间方程,获得了液阻悬置低频和高频的动态特性,对比分析认为惯性通道解耦盘式液阻悬置和节流盘解耦盘惯性通道式液阻悬置具有良好的频变幅变特性,而节流盘惯性通道解耦盘式液阻悬置拓宽了被动液阻悬置高频的使用频率,改善了惯性通道式和惯性通道解耦盘式被动液阻悬置高频的动态特性。
Dynamic modeling of three types of Passive Hydraulic Engine Mounts (PHEM) is developed, respectively, with inertia track, with inertia track and decoupler, and with inertia track, decoupler and throttle. Mathematically, the state equations governing vibration isolation behaviors of the PHEMs are presented and solved by means of the lumped parameter method and the bond graph procedure. The numerical results are produced for low and high frequency responses of the engine mounts and comparative analyses are therefore carried out. It is shown comparatively that the second and third engine mounts are possessed of better dynamic characteristics, such as frequency-dependent and amplitude-dependent. In comparison with the first two engine mounts, the bandwidth of frequencies of the third mount is extended to cover high frequencies.
出处
《应用力学学报》
EI
CAS
CSCD
北大核心
2008年第1期137-141,共5页
Chinese Journal of Applied Mechanics
基金
国家863计划(上海磁浮轨道巡检车研制,项目编号:2001AA505000-114)
关键词
液阻悬置
集总参数
键合图
动态特性
hydraulic engine mount, lumped parameter, bond graph,dynamic performance.
