压力调节锥阀开启过程振动特性研究

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摘要压力调节锥阀开启调节过程的阀芯振动直接影响着系统的压力波动幅值和响应速度，通过实验获得了阀芯运动位移和系统压力波动曲线，研究了不同阀芯和阀体结构条件下锥阀开启过程的阀芯振动特性和系统激励因素。结果表明：压力调节锥阀开启调节过程中阀芯的振动状态与阀芯结构、流量及开启压力等因素密切相关；另外，在带阻尼孔的锥阀中，相同流量和压力条件下，球头阀芯较平头阀芯更容易出现超调振动现象；研究还发现，压力调节锥阀开启调节过程中阀芯的振动是由管路系统与模型锥阀的耦合共振引起的。

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	闵为1
	王东1
	郑直1
	欧培伟1
	冀宏1
	王煜搏2

关键词 ：压力调节锥阀, 开启过程, 振动, 激励

Abstract：During opening adjustment process of the pressure regulating poppet valve, the poppet vibration directly affects the pressure fluctuation amplitude and response time of the system. The displacement of poppet and pressure fluctuation of system are obtained through experiments, under different poppet and valve body structure conditions, the characteristics of poppet vibration and excitation factors of system were studied during poppet opening process. This investigation indicates that: During the adjustment process of the pressure regulating poppet valve, the vibration state of the poppet is closely related to the structure, flow rate and pressure. Besides, for poppet valve with orifice, under the same flow rate and pressure conditions, the spherical head poppet is more prone behave as overshoot vibration than the flat head poppet. During the adjustment process of the pressure regulating poppet valve, the investigation also found: the vibration of the poppet is caused by the coupling resonance between the piping system and the model poppet valve.

Key words： pressure regulating poppet valve opening process vibration excitation

收稿日期: 2019-05-20 出版日期: 2020-09-15

引用本文:

闵为1，王东1，郑直1，欧培伟1，冀宏1，王煜搏2. 压力调节锥阀开启过程振动特性研究[J]. 振动与冲击, 2020, 39(18): 181-187.
MIN Wei1,WANG Dong1,ZHENG Zhi1,OU Peiwei1,JI Hong1,WANG Yubo2. Vibration characteristics of a pressure regulating poppet valve during opening process. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(18): 181-187.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2020/V39/I18/181

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