Projectile target response model for normal penetration process based on mechanical vibration theory

CHENG Xiangli; ZHAO Hui; LI Linchuan; YE Haifu

doi:10.11883/bzycj-2018-0242

Volume 39 Issue 9

Sep. 2019

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CHENG Xiangli, ZHAO Hui, LI Linchuan, YE Haifu. Projectile target response model for normal penetration process based on mechanical vibration theory[J]. Explosion And Shock Waves, 2019, 39(9): 093301. doi: 10.11883/bzycj-2018-0242

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CHENG Xiangli, ZHAO Hui, LI Linchuan, YE Haifu. Projectile target response model for normal penetration process based on mechanical vibration theory[J]. Explosion And Shock Waves, 2019, 39(9): 093301. doi: 10.11883/bzycj-2018-0242

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Projectile target response model for normal penetration process based on mechanical vibration theory

doi: 10.11883/bzycj-2018-0242

Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Received Date: 2018-07-03
Rev Recd Date: 2018-09-08

Available Online: 2019-08-25

Publish Date: 2019-09-01

Abstract

Abstract

In order to provide exact mechanics input for anti-high-overload optimal design of penetration fuze, the mechanical vibration theory is introduced into theoretical analysis on normal penetration and a projectile target response model combining the rigid body motion with the first order axial vibration is proposed. On the basis of force analysis for normal penetration process, a rigid body motion model for projectile is built by adopting Newton second law. The first-order axial vibration model is built based on single DOF spring-mass-damper system. Then, numerical integration calculation is carried out and the trend of each physical variable in normal penetration process is obtained. To verify the credibility of the model proposed, artillery test is carried out and the acceleration signal in the penetration process is collected. Considering that the calculated values agree well with the experimental ones, it could be concluded that the model taking axial vibration effect into account is suitable to analyze force conditions, therefore, could be applied to guide the optimal design of penetration fuze.
- normal penetration,
- mechanical vibration,
- projectile target response model,
- spring-mass-damper system

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References(21)

References

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