微耕机扶手架颗粒阻尼吸振器设计及试验研究

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (18) : 321-328.

论文

微耕机扶手架颗粒阻尼吸振器设计及试验研究

李浩，尹宜勇，齐林山，王岩，梁栋，刘国栋，李君

作者信息 +

Design and experimental study of the particle damping vibration absorber for a microcultivator handrail

LI Hao, YIN Yiyong, QI Linshan, WANG Yan, LIANG Dong, LIU Guodong, LI Jun

Author information +

文章历史 +

摘要

微耕机是我国丘陵山地广泛采用的农机具，耕作过程中手把处产生的剧烈振动危害了操作者的健康。该研究以IWGQ4-70型微耕机为研究对象，提出了一种适用于微耕机扶手架的颗粒阻尼吸振器设计方法，运用有限元法探究了扶手架的振动特性，运用离散元法分析了颗粒阻尼吸振器的能量耗散机理，设计并搭建试验平台验证了仿真结果的正确性，优选了影响颗粒阻尼吸振器减振性能的颗粒材料、粒径、填充率等参数，进行了实际工况试验验证。结果表明：试验和仿真对应较好，优化方案取得预期效果，颗粒阻尼吸振器减振效果达到58.8%，减振效果明显。

Abstract

The microcultivator is a widely used agricultural machinery in hilly and mountainous areas in China. The intense vibration generated at the handrail during the cultivation process poses a health risk to operators. In this study, the IWGQ4-70 microcultivator was selected as the research object, and a particle damping absorber design method for the microcultivator handrail was proposed. The vibration characteristics of handrail are investigated by finite element method, and the energy dissipation mechanism of particle damping absorber is analyzed by discrete element method. A test platform was designed and constructed to validate the simulated results. Particle material, particle size, filling rate and other parameters affecting the vibration damping performance of particle damping absorbers were selected and verified in actual working condition tests. The results showed a good correspondence between the experiments and simulations, and the optimized solution achieved the expected effect, with a vibration reduction effect of 58.8% and significant damping effect.

导出引用

李浩, 尹宜勇, 齐林山, 王岩, 梁栋, 刘国栋, 李君. 微耕机扶手架颗粒阻尼吸振器设计及试验研究[J]. 振动与冲击, 2024, 43(18): 321-328

LI Hao, YIN Yiyong, QI Linshan, WANG Yan, LIANG Dong, LIU Guodong, LI Jun. Design and experimental study of the particle damping vibration absorber for a microcultivator handrail[J]. Journal of Vibration and Shock, 2024, 43(18): 321-328

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