Prediction and Regression Design of Bionic Piston Fatigue Life

doi:10.7652/xjtuxb201605011

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Prediction and Regression Design of Bionic Piston Fatigue Life

更新时间：2025-05-08

- Prediction and Regression Design of Bionic Piston Fatigue Life
- Vol. 50, Issue 5, Pages: 72-80(2016)
- 作者机构：
  
  长春工程学院工程训练中心,长春,130012
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201605011
  CLC： TB17
- Online First：10 May 2016，
  
  Published：2016
- 稿件说明：
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Prediction and Regression Design of Bionic Piston Fatigue Life[J]. 2016, 50(5): 72-80.
DOI：

Prediction and Regression Design of Bionic Piston Fatigue Life[J]. 2016, 50(5): 72-80. DOI： 10.7652/xjtuxb201605011.

摘要

针对发动机活塞缸套系统的摩擦损失占发动机机械总功耗的50%的问题

基于贝壳体表条纹形凸脊结构的耐磨损特性

对发动机活塞在气缸内往复运动过程中裙部与缸壁产生周期性碰撞导致的磨损进行了仿生研究。将贝壳体表的结构形态以垂直竖状条纹形式沿活塞轴向贯穿设计于裙部

可起到减磨、卸载集中应力、提高疲劳寿命的效果。通过对标准和仿生活塞进行热-机耦合有限单元分析

得出了活塞各个部位的应力应变情况

根据曼森和科芬准则得出了仿生活塞各部位疲劳寿命

并对疲劳寿命进行部分正交多项式回归设计

找出了试验水平、因素与疲劳寿命的内在规律。选取最优仿生活塞和标准活塞进行了台架试验和机理分析

发现这种贯穿于裙部的活塞轴向的浅窄大间距条纹可提高活塞疲劳寿命

条纹深度对活塞各个部位的疲劳寿命影响最大

仿生活塞磨损量比标准活塞平均减小41.4%

温度平均降低7%。该结果可为发动机设计和耐磨损研究提供参考。

Abstract

The frictional loss of piston cylinder jacket system accounts for up to about 50% of the total mechanical power of engine. Peculiarity of sea shells in standing wear and tear is closely related to the stripe shape and ridge form on their surface. When piston

the main part of an engine

reciprocates within cylinder jacket

skirt and cylinder wall will produce periodic collision and abrasion. We conducted a bionic design on the piston skirt. The form of shell's surface was designed with vertical stripes through machining grooves along the axial direction of piston skirt in order to reduce attrition

release concentrated stress and improve fatigue life. First

through the thermal-mechanical coupling finite element analysis on both standard and bionic pistons

we analyzed the strain and stress of every part of the piston. Then we obtained the fatigue life of every part of the bionic piston according to Manson and Coffin formula. A partial orthogonal polynomial regression design on the fatigue life was conducted to find the inherent rules among test level

factors and fatigue life. Optimal bionic piston and standard piston were selected to conduct bench test and mechanism analysis. Results show that the grooves along the axial direction of piston skirt

with shallow or narrow and a large spacing

can improve the fatigue life of pistons. The wear and tear of the bionic piston is decreased by 41.4%

and the average temperature is lowered by 7% compared with standard piston.

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references

FLOWEDAY G, PETROV S, TAIT R B. Thermo-mechanical fatigue damage and failure of modern high performance diesel pistons [J]. Engineering Failure Analysis, 2011, 18(7): 1664-1674.

张俊红, 何振鹏, 张桂昌, 等. 柴油机活塞热负荷和机械负荷耦合研究 [J]. 内燃机学报, 2011, 29(1): 78-83.

ZHANG Junhong, HE Zhenpeng, ZHANG Guichang, et al. Coupled thermal and mechanical load analysis in diesel engine piston [J]. Transactions of CSICE, 2011, 29(1): 78-83.

SROKA Z J. Thermal load of tuned piston [J]. Archives of Civil and Mechanical Engineering, 2012, 12(3): 342-347.

韩志武, 吕尤, 牛士超, 等. 仿生表面形态对齿轮弯曲疲劳性能的影响 [J]. 吉林大学学报: 工学版, 2011, 41(3): 702-705.

HAN Zhiwu, LV You, NIU Shichao, et al. Bending fatigue strength of gear surface with grid micro-morphology [J]. Journal of Jilin University: Engineering and Technology Edition, 2011, 41(3): 702-705.

王刚. 压铸模具热疲劳裂纹萌生扩展及激光阻断技术研究 [D]. 哈尔滨: 哈尔滨理工大学, 2015.

HUANG H, ZHANG Y, REN L Q. Particle erosion resistance of bionic samples inspired from skin structure of desert lizard, laudakin stoliczkana [J]. Journal of Bionic Engineering, 2012, 9(4): 465-469.

李慧. 基于温度场试验的铝合金活塞疲劳寿命预测研究 [D]. 太原: 中北大学, 2012.

DEV S, ABDULAZIZ A, MOHAMMAD A, et al Thermal and mechanical failure analysis of a two-stroke motocross engine piston [J]. Journal of Failure Analysis and Prevention, 2014, 14(1): 21-26.

MBUYA T O, SINCLAIR I, MOFFAT A J. Micro-mechanisms of fatigue crack growth in cast aluminium piston alloys [J]. International Journal of Fatigue, 2011, 10(1): 456-463.

TOWO A N, ANSELL M P. Fatigue evaluation and dynamic mechanical thermal analysis of sisal fibre-thermosetting resin composites [J]. Composites Science and Technology. 2008, 68(3/4): 925-932.

吴波, 丛茜, 熙鹏. 带仿生结构的内燃机活塞裙部优化设计 [J]. 农业机械学报, 2015, 46(6): 287-293.

WU Bo, CONG Qian, XI Peng. Optimized design of internal engine piston skirt with bionic structure [J]. Transactions of the Chinese Society for Agricultural Machinery, 2015, 46(6): 287-293.

谢琰. 柴油机活塞热负荷与机械负荷的三维有限元耦合分析 [D]. 呼和浩特: 内蒙古工业大学, 2010.

王庆生. 活塞系统二阶运动分析及表面形貌挤压效应研究 [D]. 合肥: 合肥工业大学, 2012.

张效翔. 内燃机活塞二阶运动与摩擦学行为的瞬态模型研究 [D]. 上海: 上海交通大学, 2009.

SILVA F S. Fatigue on engine pistons: a compendium of case studies [J]. Engineering Failure Analysis, 2006, 13(3): 480-492.

张卫正, 魏春源, 苏志国, 等. 内燃机铝合金活塞疲劳寿命预测研究 [J]. 中国机械工程, 2003, 14(10): 865-867.

ZHANG Weizheng, WEI Chunyuan, SU Zhiguo, et al. A study on forecasting of fatigue life for aluminium alloy piston of diesel engine [J]. China Mechanical Engineering, 2003, 14(10): 865-867.

任露泉. 试验设计及其优化 [M]. 北京: 科学出版社, 2009: 35-42.

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