空气弹簧式半主动悬置设计与匹配研究

Design and Matching of Air Spring Semi-active Moun

设计了一种通过电磁阀控制解耦膜刚度的空气弹簧式半主动悬置。建立了基于AMESim仿真平台的半主动液压悬置模型,分析了动刚度和阻尼角曲线。在整车上根据起动、怠速、加速、冲击等工况下激励的不同对悬置工作模式进行了匹配。分析结果表明,该悬置可以在较宽频率范围内明显改善乘坐舒适性及降低车内噪声和振动,具有刚度阻尼可调范围大、响应速度快、结构简单、制造成本低等优点。

An air spring semi-active mount which controls the decoupling membrane stiffness with solenoid valve is developed. The dynamic stiffness and damping angle curve are analyzed with the semi-active hydraulic mount model established based on the AMESim. The mount operating mode is matched to vehicle according to different excitations under the condition of starting, idling, acceleration and impact. The results of analysis show that the semi-active mount can improve the fide comfort, reduce the interior noise and vibration significantly in a wide frequency range, and it features the advantages of wide adjustment range, fast response speed, simple structure and low manufacture cost, etc.