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针对工程车辆、农用车辆等振动强度大、隔振设施简陋的非路面车辆,提出了一种新型的驾驶员座椅悬架系统——6足并联悬架系统。建立了人椅悬架系统自由振动模型,结合空间具有6自由度的机构形式,根据驾驶员座椅隔振的性能要求进行了6足并联悬架结构形式的分析、比较与选取。仿真结果表明,选定的Stewart双三角型并联悬架在6个方向均有良好的隔振效果。研究结果对设计多维减振座椅具有指导意义,对提高非路面车辆驾驶员的乘坐舒适性具有促进作用。
For non-road vehicles with large vibration intensity and simple vibration isolation facilities, such as construction vehicles and agricultural vehicles, a new type of driver’s seat suspension system-6-foot parallel suspension system is proposed. The free-vibration model of the human-seat suspension system is established. Combined with the mechanism form of 6-DOF, the structure analysis, comparison and selection of 6-foot parallel suspension are carried out according to the performance requirements of the driver’s seat vibration isolation. The simulation results show that the selected Stewart double-delta parallel suspension has a good vibration isolation effect in all six directions. The research results are instructive to the design of multi-dimensional vibration-damping seats, which can promote the ride comfort of non-road vehicle drivers.