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Research on filtering characteristics of hydraulic pulsation attenuator based on bionic principle of basilar membrane of cochlea

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成果类型:
期刊论文
作者:
贺尚红;熊宇维;王文
通讯作者:
He, Shanghong(heshanghong@126.com)
作者机构:
[贺尚红; 王文] Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha, 410004, China
[熊宇维] Department of Mechanical Engineering, Hunan Industry Polytechnic, Changsha, 410208, China
通讯机构:
Hunan Province Key Laboratory of Safety Design and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha, China
语种:
中文
关键词:
耳蜗基底膜;仿生膜片;脉动衰减器;液压脉动
关键词(英文):
Bionics;Frequency bands;Hydraulic equipment;Membranes;Transfer matrix method;Vibration analysis;Attenuation function;Basilar membranes;Characteristics of vibrations;Dynamic characteristics;Filtering characteristic;Pulsation attenuator;Transfer matrix model;Vibration characteristics;Filtration
期刊:
机械工程学报
ISSN:
0577-6686
年:
2016
卷:
52
期:
4
页码:
171-177
基金类别:
51275059:国家自然科学基金 2015JJ4003;20150312;20150914:湖南省自然科学基金
机构署名:
本校为第一且通讯机构
院系归属:
汽车与机械工程学院
摘要:
为解决液压系统中由于压力脉动引起的振动和噪声问题,从仿生学角度出发,根据人耳听觉形成过程及耳蜗基底膜的宽频振动响应特征,研究耳蜗基底膜振动的"空间-频率"特性,提出一种仿耳蜗基底膜振动特性的液压脉动抑制方法。设计一种以仿生膜片为共振体的结构紧凑灵巧的液压脉动衰减器,克服了传统液压脉动衰减器结构复杂、体积庞大的缺点。基于流固耦合原理,分析仿生膜片在压力流体中的振动特性;结合管路动态特性,建立脉动衰减器的传递矩阵模型,用插入损失对脉动衰减性能进行评价;通过脉动衰减器样机的试验检验其滤波减振性能。理论和试验结果表明该液压脉动衰减器能够有效衰减液压系统有效频率的压力...
摘要(英文):
In order to solve the problem of vibration and noise caused by the pressure fluctuation in hydraulic systems, a hydraulic pulsation suppression method based on bionic principle of basilar membrane of cochlea is proposed. According to the "space-frequency map" of basilar membrane, a new hydraulic pulsation attenuator with bionic membrane structure is designed, which simulate the characteristics of vibration of basilar membrane. So, the shortcoming of bulkiness of traditional pulsation attenuator is overcome successfully. Based on the theory of fluid-solid coupling, the vibration characteristics...

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