Aiming at projectile-based components in artillery launch environment are easier to be damaged than they be in test environment with the same peak impact, one type projectile-based component with deloading subassembly was used to analyze stress wave propagating characteristics and laws. According to the compatibility relation among characteristic curves, the difference method was applied to discrete dynamic equations of viscoelastic materials in higher overload environment. The mechanism to form overload time cumulative effect of the projectile-based component and its stress calculation method were studied. Its stresses were analyzed contrastively under different overload peak values and time durations. The results provided a reference for anti-high overload design of projectile-based components.
钱立志1，蒋滨安1，宁全利1，李俊1,2. 弹载器件的过载时间累积效应研究[J]. 振动与冲击, 2017, 36(24): 237-241.
QIAN Lizhi1, JIANG Bin’an1, NING Quanli1, LI Jun1,2. Overload time cumulative effect of projectile-based components. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(24): 237-241.
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