弹体侵彻试验过载测试物理滤波方法研究

朱擎 ,  周会娟 ,  李述涛 ,  余尚江 ,  马上 ,  张谨麟 ,  陈叶青

应用力学学报 ›› 2026, Vol. 43 ›› Issue (2) : 338 -345.

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应用力学学报 ›› 2026, Vol. 43 ›› Issue (2) : 338 -345. DOI: 10.11776/j.issn.1000-4939.2026.02.008
动力学与控制

弹体侵彻试验过载测试物理滤波方法研究

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Study on physical filtering method for overload measurement in projectile penetration tests

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摘要

针对弹体侵彻试验中刚体过载测试易受高频物理干扰的问题,本研究首先对实测过载信号进行解耦,分离出低频刚体过载分量与高频振动干扰分量;其次基于单自由度动力学模型,对弹簧阻尼隔振系统开展理论分析,推导得到不同隔振效率下输入频率与系统固有频率的数学关系,可依据目标隔振效率与输入激励频率,针对性设计低阻尼隔振系统的刚度参数;最后通过侵彻试验过载测试数据验证,该物理滤波方法能够有效抑制振动荷载对刚体过载信号的干扰,成功提取到幅值在(30 000~40 000)g范围内的真实刚体过载信号,提升了过载测量保真度。研究成果可为侵彻战斗部强动载测试系统的设计与优化提供高精度测试理论与技术支撑。

Abstract

Aiming at the problem that rigid-body overload measurement in projectile penetration tests is susceptible to high-frequency physical disturbances,this paper first decouples the measured overload signals to separate the low-frequency rigid-body overload component and the high-frequency vibrational disturbance component. Then,based on a single-degree-of-freedom (SDOF) dynamic model,a theoretical analysis is carried out on the spring-damped vibration isolation system. The mathematical relationship between the input frequency and the natural frequency of the system under different vibration isolation efficiencies is derived,allowing the stiffness parameters of the low-damping vibration isolation system to be designed according to the target vibration isolation efficiency and input excitation frequency. Finally,verification using overload test data from penetration tests shows that the proposed physical filtering method can effectively suppress the interference of vibration loads on rigid-body overload signals,successfully extracting true rigid-body overload signals of (30 000-40 000)g and improving measurement fidelity. The search results can provide high-precision theoretical and technical support for the design and optimization of high-impulse dynamic load measurement systems for penetration warheads.

关键词

侵彻试验 / 过载测试 / 物理滤波 / 隔振

Key words

penetration test / overload measurement / physical filtering / vibration isolation

引用本文

引用格式 ▾
朱擎,周会娟,李述涛,余尚江,马上,张谨麟,陈叶青. 弹体侵彻试验过载测试物理滤波方法研究[J]. 应用力学学报, 2026, 43(2): 338-345 DOI:10.11776/j.issn.1000-4939.2026.02.008

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基金资助

目标易损性评估全国重点实验室自主开放基金资助项目(YSX2024ZZYS001)

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