3060型联合收割机发动机减振系统的研究

Study on Vibration Isolation System of a 3060 Combine Engine

根据振动理论进行参数设计和选择减振垫 ,建立了 30 6 0型联合收割机发动机系统振动模型 ,从而找出有效的减振措施。通过试验 ,检测了发动机振源对整机工作状态的影响 ,分析了不同减振垫的减振效果 。

New mounts for improving vibration isolation were designed and selected based on the vibration theory. A math model of the vibration for a 3060 engine system was developed in order to get a new approach to reducing the vibration in the structure. Several mounting configurations were analyzed using a simple finite element model. The effectiveness of the engine isolation system was measured and the effects of the improvement for the engine mounting were verified. The new mountings on the current combine mounting locations reduced the vibration level in the structure by 60%~80% and reduced strain level at some locations around 40%.