Dynamic Modeling and Simulation for Penetration Warhead-fuze System

被引：0
|
作者：
Cheng X. [1 ]
Liu B. [1 ]
Zhao H. [1 ]
Liu J. [1 ]
机构：
[1] Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang, 621999, Sichuan
来源：
Binggong Xuebao/Acta Armamentarii | 2020年 / 41卷 / 04期
关键词：
Fuze; Harmonic response analysis; Penetration warhead; Spring-mass-damper system;
D O I：
10.3969/j.issn.1000-1093.2020.04.001
中图分类号：
学科分类号：
摘要：
The mechanical vibration theory is introduced into theoretical analysis and calculation of penetration process, and a simplified dynamic model of penetration warhead-fuze system is proposed with the purpose of revealing the dynamic response mechanism of circuit module of fuze in penetration process. On the basis of analysis of loading transfer relation, a dynamic differential equation is established based on multi-DOFs spring-mass-damper system, and the dynamic parameters, such as natural frequency and damping ratio, are determined by the harmonic response analysis. Then the dynamic characteristics under different penetration conditions are predicted by numerical integration method, and the reason why the predicted dynamic characteristics differ greatly from the calculated result of the traditional empirical formula is analyzed from the amplitude-frequency response.The credibility of the proposed model was verified through artillery test, and the overload signal in penetration process was collected. The calculated value of overload signal is in agreement well with measured result. The result shows that the proposed model is more suitable to predict the dynamic characteristics of warhead or fuze in penetration process. It is shown that penetration warhead exhibits obvious vibration amplificatory characteristics and periodic oscillation characteristics in considering the axial vibration effect, and the dynamic characteristics of warhead are the most important factor affecting the dynamic characteristics of circuit module in fuze. © 2020, Editorial Board of Acta Armamentarii. All right reserved.
引用
收藏
页码：625 / 633
页数：8
相关论文
共 20 条
  • [1] Wu H.J., Zhang S., Huang F.L., Research progress in penetration/perforation into reinforced concrete targets, Acta Armamentarii, 39, 1, pp. 182-208, (2018)
  • [2] Meng C.M., Tan Q.H., Jiang Z.G., Et al., Approximate solutions of finite dynamic spherical cavity-expansion models for penetration into elastically confined concrete targets, International Journal of Impact Engineering, 114, 1, pp. 182-193, (2018)
  • [3] Sun Q.R., Sun Y.X., Liu Y.X., Et al., Numerical analysis of the trajectory stability and penetration ability of different lateral-abnormal projectiles for non-normal penetration into soil based on modified integrated force law method, International Journal of Impact Engineering, 103, 1, pp. 159-168, (2017)
  • [4] Zhang X.Y., Wu H.J., Li J.Z., Et al., Comparative study of projectiles penetrating into two kinds of concrete targets at high velocity, Acta Armamentarii, 40, 2, pp. 276-283, (2019)
  • [5] He T., Wen H.M., Determination of the analytical forcing function of target response and its applications in penetration mechanics, Journal of University of Science and Technology of China, 37, 10, pp. 1249-1261, (2007)
  • [6] Wang C.H., Chen P.Y., Xu X.C., Filtering of penetration deceleration data and determining of penetration deceleration on the rigid-body, Explosion and Shock Waves, 27, 5, pp. 416-419, (2007)
  • [7] Zhang D.S., Gu H.P., Lu Y.Z., Et al., Numerical simulation of structure strength calculation and stress waves analysis, Journal of Detection & Control, 40, 5, pp. 21-25, (2018)
  • [8] Zhang D.M., Gao S.Q., Niu S.H., Et al., Study on collision of threaded connection during impact, International Journal of Impact Engineering, 106, 1, pp. 133-145, (2017)
  • [9] Song Y.Y., Zhang J.Y., Li X.F., Et al., MATLAB simulation study on dynamic load transfer characteristics of two kinds of threaded connections, Journal of Graphics, 38, 6, pp. 809-813, (2017)
  • [10] Zhang X.Y., Wu Y.Q., Huang F.L., Numerical simulation on the dynamic damage of PBX charges filled in projectiles during penetrating thin concrete targets, Chinese Journal of Energetic Materials, 26, 1, pp. 101-108, (2018)
12