To improve this I made a modification from two sides: to increase the fatigue limitation of shaft and to decrease dynamic-load stress.
对此，在提高轴头疲劳极限和降低变应力两方面采取了相应的改造措施。
The thought of this paper is to discuss on and analysis to dynamic response of HSMS under impact load, and estimate its mean life based on noted stress fatigue design method.
本文的主导思想是讨沦和分析冲击载荷下螺旋弹簧质量系统的动态响应，并应用名义应力疲劳设计方法估计其平均寿命。
We study stress intensity factor of thick wall cylinder with cracks under dynamic load.
研究了动载荷作用下带裂纹厚壁筒的应力强度因子。
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