|Table of Contents|

Performance of a new type of horizontal impact fatigue testing machine

《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

Issue:
2014年03期
Page:
361-
Research Field:
Publishing date:

Info

Title:
Performance of a new type of horizontal impact fatigue testing machine
Author(s):
Liu Guoqing; Zou Yan; Guan Xiaorong; Xu Cheng
School of Mechanical Engineering,NUST,Nanjing 210094,China
Keywords:
impact fatigue testing machines; firearms automations; fatigue lifetime; camspring; motor speed; spring stiffness; spring preliminary displacement; impact frequencies; impact force; impulses
PACS:
TH122
DOI:
-
Abstract:
A new type of horizontal impact fatigue testing machine is designed for simulation tests of impact fatigue lifetime for critical components in firearms automations.A structure of camspring is employed as the load maintainer.The impact frequency and the peak of the impact force of the machine are changed by adjusting the motor speed,stiffness and preliminary displacement of the spring.The characters of the impact force and loading motion,the influences of the impact frequency on the peak of the impact force and the quantitative relations between the impact force peak,impulse and preliminary displacement of the spring are obtained through experimental research on the performance of the machine,which provide a basis for the application of the impact fatigue testing machine proposed here.The experimental results show that the testing machine designed here is feasible and reliable and meets the design requirements of impact fatigue experiments for automatic mechanisms.

References:

[1]史瑞明.武器撞击动力学[M].北京:兵器工业出版社,1991.
[2]王学颜,宋广惠.结构疲劳强度设计与失效分析[M].北京:兵器工业出版社,1992.
[3]王献超.多冲碰撞试验机研制及其系统动力学响应分析[D].苏州:苏州大学机电工程学院,2007.
[4]何玲,徐诚.枪械自动机冲击疲劳试验机加载机构设计优化及性能分析[J].兵工学报,2011,32(7):805-811.
He Ling,Xu Cheng.Design optimization and performance analysis of loading mechanism of impact fatigue test machine for firearm automation[J].Acta Armamentarii,2011,32(7):805-811.
[5]樊黎霞.自动武器构件弯曲撞击强度问题的理论分析和实验研究[D].南京:南京理工大学机械工程学院,1990.

Memo

Memo:
-
Last Update: 2014-06-30