深海热液采样阀PEEK阀芯疲劳寿命研究

doi:10.3785/j.issn.1008-973X.2010.01.003

2010, Vol. 44

Issue (1): 14-18 DOI: 10.3785/j.issn.1008-973X.2010.01.003

机械工程

深海热液采样阀PEEK阀芯疲劳寿命研究

王杭州¹,秦华伟¹,杨灿军²,陈鹰^1,2

（1.杭州电子科技大学机械电子工程研究所,浙江杭州 310018；2.浙江大学流体传动及控制国家重点实验室,浙江杭州 310027）

Fatigue life of PEEK poppet for deep-sea hydrothermal fluid sampling valve

WANG Hang-zhou¹, QIN Hua-wei¹, YANG Can-jun², CHEN Ying^1,2

(1. Institute of Machine and Electronic Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;
2. State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China)

全文: PDF HTML

摘要：

通过分析深海热液采样阀PEEK阀芯的实际工作情况,综合考虑几何尺寸、应力集中以及加载方式等因素的影响,研究PEEK阀芯在峰值为70 MPa脉动工作压力下的疲劳寿命.运用传统名义应力法,由PEEK材料的应力-疲劳寿命曲线求得PEEK阀芯在工作过程中的应力-疲劳寿命曲线,结合疲劳损伤累积理论估算出阀芯的疲劳寿命.在实验中模拟取出样品过程,对同一批次的多个阀芯进行疲劳寿命试验,试验结果的一致性较好且与理论估算结果相吻合.PEEK阀芯在工作条件下的疲劳寿命为7个工作周期,阀芯的疲劳断裂符合疲劳损伤累积理论.

Abstract:

After analyzing the working cycles of the PEEK poppet of deep-sea hydrothermal sampling valves working in extreme temperature and pressure conditions, this work proposed an analytical method to predict the fatigue life of the PEEK poppet under varying working pressure with a maximum value of 70 MPa. The geometrical dimensions, stress concentration and loading styles of the PEEK poppet were comprehensively considered. By applying the traditional nominal stress method, the stress-fatigue life curve of the PEEK poppet during working cycles was obtained using the stress-fatigue life curve of the PEEK material. Then the fatigue life was estimated with thefatigue cumulative damage rule. A test rig was designed to imitate the sampling process, and the fatigue tests were performed on several poppets in the same manufacture series. The test results were consistent and agreed well with the analytical results. The fatigue life of the PEEK poppet is 7 cycles under the working condition, and the fatigue failure of the poppet accords with the fatigue cumulative damage rule．

出版日期: 2010-02-26

TH 137.5

基金资助:

国家“863”高技术研究发展计划资助项目（2006AA09Z215）；国家自然科学基金重点资助项目（40637037）；浙江省教育厅科研计划资助项目（Y200805699）.

通讯作者: 秦华伟，男，副教授. E-mail: qinhw@hdu.edu.cn

作者简介: 王杭州（1983-），男，河南正阳人，硕士，主要从事深海机电装备技术研究.

	服务
	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

引用本文:

王杭州, 秦华伟, 杨灿军, 等. 深海热液采样阀PEEK阀芯疲劳寿命研究[J]. J4, 2010, 44(1): 14-18.

WANG Hang-Zhou, QIN Hua-Wei, YANG Can-Jun, et al. Fatigue life of PEEK poppet for deep-sea hydrothermal fluid sampling valve. J4, 2010, 44(1): 14-18.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.01.003 或 http://www.zjujournals.com/eng/CN/Y2010/V44/I1/14

［1］ GERMAN C R, PARSON L M. Distributions of hydrothermal activity along the Mid-Atlantic Ridge: interplay of magmatic and tectonic controls ［J］. Earth and Planetary Sciences Letters, 1998, 160(3/4): 327-341．
［2］杜同军,瞿世奎,任建国. 海底热液活动与海洋科学研究［J］. 青岛海洋大学学报, 2002, 32(4): 597-602．
DU Tong-jun, ZHAI Shi-kui, REN Jian-guo. Studies on the seafloor hydrothermal activity and ocean science ［J］. Journal of Ocean University of Qingdao, 2002, 32(4): 597-602．
［3］ LUPTON J E, BAKER E T, MASSOTH G J. Helium, heat, and the generation of hydrothermal event plumes at mid-ocean ridges ［J］. Earth and Planetary Sciences Letters, 1999, 171(3): 343-350．
［4］ CHEN Ying, WU Shi-jun, XIE Ying-jun, et al. A novel mechanical gas-tight sampler for hydrothermal fluids ［J］. IEEE Journal of Oceanic Engineering, 2007, 32(3): 603-608．
［5］刘伟,杨灿军,吴世军,等. 深海热液采样阀耐高压塑料阀芯研究［J］. 浙江大学学报：工学版, 2008, 42(2): 215-218．
LIU Wei, YANG Can-jun, WU Shi-jun, et al. Study on high pressure-resistant plastic poppet of deep-sea hydrothermal fluid sampling valve ［J］. Journal of Zhejiang University: Engineering Science, 2008, 42(2): 215-218．
［6］ Victrex. Victrex PEEK high performance polymers ［EB/OL］. (2009-03-10). http:∥www.victrex.com/literature_files/Material_Properties_Guide_en.pdf．
［7］姚卫星. 结构疲劳寿命分析［M］. 北京：国防工业出版社, 2003: 5-95．
［8］李舜酩. 机械疲劳与可靠性设计［M］. 北京：科学出版社, 2006: 11-95．
［9］徐灏,蔡春源,严隽琪,等. 机械设计手册［M］. 2版. 北京：机械工业出版社, 2003: 49-50．
［10］徐灏. 疲劳强度设计［M］. 北京：机械工业出版社, 1981: 67-75．

[1]	徐兵, 宋月超, 杨华勇. 柱塞泵斜盘交错角降噪结构优化[J]. J4, 2013, 47(6): 1043-1050.
[2]	徐兵, 张军辉, 杨华勇, 叶绍干. 基于串联式轴向柱塞泵转位角降噪方法仿真[J]. J4, 2013, 47(1): 94-101.
[3]	刘伟, 徐兵, 杨华勇, 朱晓军. LUDV多路阀的挖掘机电液流量匹配控制系统特性[J]. J4, 2012, 46(8): 1360-1368.
[4]	徐兵, 刘伟, 杨华勇, 张圣峰. 挖掘机电液流量匹配控制系统流量补偿试验[J]. J4, 2012, 46(8): 1382-1389.
[5]	张斌, 徐兵, 杨华勇, 等. 基于虚拟样机技术的数字式柱塞泵控制特性研究[J]. J4, 2010, 44(1): 1-7.

Viewed

Full text

Abstract

Cited

Shared

Discussed