INVESTIGATIONS ON PULSATION-REDUCTION CHARACTERISTICS OF HYDRAULIC ATTENUATOR BASED ON EXPERIMENTAL METHOD

被引：0
|
作者：
Zhu, Jiabin [1 ]
Zhou, Hua [1 ]
Yang, Huayong [1 ]
机构：
[1] Zhejiang Univ, State Key Lab Fluid Power Transmiss & Control, Hangzhou 310003, Zhejiang, Peoples R China
来源：
PROCEEDINGS OF THE ASME/BATH SYMPOSIUM ON FLUID POWER AND MOTION CONTROL, 2014 | 2014年
关键词：
TUBE MUFFLER COMPONENTS;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Three types of hydraulic attenuators are designed and investigated to study the pulsation-reduction characteristics in hydraulic system. Attenuator test rig is established to obtain pressure signals in time domain and frequency domain (5 Hz to 1200 Hz), respectively. Influences of changing source impedance and loading impedance to the attenuation rate (Ka) and pressure ratio of inlet and outlet (P-io) are discussed. Experiment results show that expansion chamber attenuator (ECA) is a better choice for a wide frequency range of pulsation reduction. Two types of perforated tube attenuators (PTA) have better performances in some certain frequency range. The performance of PTA can have further improvements by designing the damping holes diameters. The performance of the attenuator is mainly influenced by pump character and rotating speed. The system loading has limited influence on the performance comparing to source impedance.
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页数：9
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