| 滞回阻尼吸振器和粘滞阻尼吸振器的吸振性能比较 |
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| 引用本文： | 郑福明,杜冬,冯海军,章艺. 滞回阻尼吸振器和粘滞阻尼吸振器的吸振性能比较[J]. 噪声与振动控制, 2007, 27(5): 34-37 |
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| 作者姓名： | 郑福明 杜冬 冯海军 章艺 |
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| 作者单位： | 海军驻704所军代表室 上海200030(郑福明)，上海交通大学机械系统与振动国家重点实验室 上海200240(杜冬)，中船重工集团公司第704研究所 上海200030(冯海军，章艺) |
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| 摘 要： | 针对四种不同阻尼形式的主结构-动力吸振器模型,即(a)主结构滞回阻尼,吸振器滞回阻尼;(b)主结构滞回阻尼,吸振器粘滞阻尼;(c)主结构粘滞阻尼,吸振器滞回阻尼;(d)主结构粘滞阻尼,吸振器粘滞阻尼,详细推导了动力放大系数的表达式,然后采用范数优化准则得到了各个模型的最优参数。在最优参数下,比较不同阻尼形式的吸振器对于同样形式阻尼的主结构吸振性能的差异,以及这些差异在不同质量比和不同的主结构阻尼因子下的变化趋势。分析结果表明,滞回阻尼吸振器和粘滞阻尼吸振器在质量比较小或主结构阻尼因子较小的情况下差别较小,但对于共振区的抑振效果,两者还是存在一定的区别。
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| 关 键 词： | 吸振器 滞回阻尼 粘滞阻尼 |
| 文章编号： | 1006-1355（2007）05-0034-04 |
| 修稿时间： | 2007-06-18 |
Comparison of Vibration Absorbing Performance of Hysteretic Damper and Viscous Damper |
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| ZHEN Fu-ming,DU Dong,FENG Hai-jun,ZHANG Yi. Comparison of Vibration Absorbing Performance of Hysteretic Damper and Viscous Damper[J]. Noise and Vibration Control, 2007, 27(5): 34-37 |
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| Authors: | ZHEN Fu-ming DU Dong FENG Hai-jun ZHANG Yi |
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| Affiliation: | 1. Navy Military Representative Department at 704th Institute, Shanghai 200031, China; 2. State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai 200240, China; 3. 704th Institute of CSIC, Shanghai 200031, China |
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| Abstract: | Dynamic amplification factors of four types of primary structure(PS)-dynamic absorber(DA) models,i.e.(a) hysteretic damping in PS-hysteretic damping in DA;(b) hysteretic damping in PS-viscous damping in DA;(c) viscous damping in PS-hysteretic damping in DA;(d) viscous damping in PS-viscous damping in DA,are given and the optimal parameters are derived by norm optimization.Given the optimal parameters,vibration absorbing performance of different absorbers and its variation to mass ratio and damping ratio of PS are compared.Analysis results have shown that there is small difference in performance for hysteretic damper and viscous damper when the mass ratio and damping ratio of PS are small,but there exits some difference in resonance suppression effectiveness. |
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| Keywords: | vibration absorber hysteretic damping viscous damping |
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