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| 联合收获机主驾驶座振动强度及其频率结构试验 | |
| 引用本文： | 王芬娥,曹新惠,郭维俊,马国军,何成秀.联合收获机主驾驶座振动强度及其频率结构试验[J].农业机械学报,2007,38(4):62-65. |
| 作者姓名： | 王芬娥 曹新惠 郭维俊 马国军 何成秀 |
| 作者单位： | 1. 甘肃农业大学工学院,730070,兰州市 2. 甘肃省农业机械管理局,730000,兰州市 3. 兰州工业高等专科学校机械工程系,730050,兰州市 4. 甘肃省农业机械鉴定站,730000,兰州市 |
| 摘 要： | 根据小麦联合收获机振源特点,运用DH5922动态信号测试分析系统,现场测试新疆-2A型联合收获机主驾驶座地板测点的动力响应,得到了测点不同工况下的垂直振动加速度时程曲线和快速傅里叶变换频谱。研究结果表明:小麦联合收获机任一点的振动强度、频率结构随工况不同而变化。收获机空转、发动机空转、田间作业和公路运输4种工况下测点的振动加速度有效值为0.1591m/s2、0.1087m/s2、0.0938m/s2、0.0704m/s2,振动主频分别为142.6Hz、56.6Hz、36.6Hz、36.6Hz。 |
| 关 键 词： | 联合收获机 振动强度 振动频率 |
| 修稿时间： | 2006-09-19 |
Research on Vibration Strength and Frequency Structure of Main Driver Seat of the Wheat Combine |
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| Wang Fene,Cao Xinhui,Guo Weijun,Ma Guojun,He Chengxiu.Research on Vibration Strength and Frequency Structure of Main Driver Seat of the Wheat Combine[J].Transactions of the Chinese Society of Agricultural Machinery,2007,38(4):62-65. | |
| Authors: | Wang Fene Cao Xinhui Guo Weijun Ma Guojun He Chengxiu |
| Institution: | 1.Gansu Agricultural University 2.Administration of Gansu Agricultural Mechanization3.Lanzhou Polytechnic College 4.Gansu Appraisal Station of Agricultural Machinery |
| Abstract: | Based on the characteristics of vibration source of wheat combines, the dynamic responses of the testing spot on the floor of main driver's seat of Xinjiang-2A combine were measured by DH5922 dynamic state signal testing and analyzing system. The timing-process curves of vertical vibration acceleration and the spectrum of Fourier fast transform on the testing spot were achieved under the four working conditions of the combine that included idling, the engine idling, the combine working in the fields and the combine transporting on the highway. The results showed that vibration strength and frequency structure of any spot of the combine are different with the different working conditions. The root-mean-square values of the vibration acceleration of the testing spot under the four working conditions were 0.159 1 m/s2, 0.108 7 m/s2, 0.093 8 m/s2 and 0.070 4 m/s2 respectively, and the dominant vibration frequencies were 142.6 Hz, 56.6 Hz, 36.6 Hz and 36.6 Hz respectively. |
| Keywords: | Combine Vibration strength Vibration frequency |
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