| 直升机主减反共振隔振系统中附加阻尼器的影响分析 |
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| 引用本文： | 熊峰,王轲.直升机主减反共振隔振系统中附加阻尼器的影响分析[J].装备环境工程,2018,15(9):96-100. |
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| 作者姓名： | 熊峰 王轲 |
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| 作者单位： | 南京航空航天大学振动工程研究所 |
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| 摘 要： | 目的分析阻尼参数对共振峰抑制与反共振隔振有效频率范围的影响。方法在主减共振梁上安装阻尼器,改变阻尼大小进行仿真分析。结果随着阻尼系数的增大,共振峰值逐渐降低,反共振点频率基本不变,隔振效率有所下降,有效隔振效率范围有所拓宽。建议把阻尼大小设为0.01最为有效。结论通过安装阻尼器并改变阻尼大小可以有效地调节减震效率及反共振隔振有效频率范围。
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| 关 键 词： | 反共振隔振 阻尼 频响函数 隔振效率 |
| 收稿时间： | 2016/5/11 0:00:00 |
| 修稿时间： | 2018/9/25 0:00:00 |
Influences of Damping Applied in Helicopter Main Anti-resonance Vibration Isolation System |
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| XIONG Feng and WANG Ke.Influences of Damping Applied in Helicopter Main Anti-resonance Vibration Isolation System[J].Equipment Environmental Engineering,2018,15(9):96-100. |
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| Authors: | XIONG Feng and WANG Ke |
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| Institution: | Institute of Vibration Engineering Research, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China and Institute of Vibration Engineering Research, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China |
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| Abstract: | Objective To analyze influences of damping parameters on effective frequency range of formant suppression and anti resonance isolation. Methods A damper was installed on the main resonance beam, and the damping size was changed for simulation. Results With the increase of damping coefficient, the peak value of resonance gradually decreased; the frequency of the anti resonance point was basically unchanged; the efficiency of vibration isolation decreased; and the effective range of isolation efficiency was widened. It is suggested that the damping size of 0.01 was the most effective. Conclusion The damping efficiency and the effective frequency range of anti resonance isolation can be effectively adjusted by installing dampers and changing the damping size. |
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| Keywords: | anti resonance isolation damping frequency response function vibration isolation efficiency |
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