提出了利用PVDF压电薄膜测量火炮发射过程中火药颗粒对弹底撞击应力方案，论述了该方案的可行性。
Solution was proposed in which PVDF piezoelectric film was used to detect the percussion force of powder grains to projectile base in launching environment, and the feasibility was discussed.
研究脆性岩石在强冲击载荷下的力学响应持性．采用一级轻气炮驱动的飞片撞击实验技术，测量大理岩试件组成的靶板中的应力脉冲波形；
To study the dynamic response properties of brittle rock under strong impact loading, the stress wave curves were measured using the planar impact technique.
用特征线法分析了刚性块轴向撞击弹塑性直杆时应力波传播的过程。
The traveling process of elastic-plastic waves under impact action was analyzed by characteristics method.
辊棒属脆性材料，清理时应避免敲击、撞击、冲击以及其它易产生机械性应力的方法。
The roller is part of brittle material, avoid to use the way in whack, bump, impact and other easily to make mechanical stress.
在测定撞击载荷形式的基础上，通过试验研究应力波在一维节理岩体中的传播规律。
On the basis of detecting impact load, studies are carried on regulation of stress wave propagation in one-dimensional rock mass by experimental and numerical simulation.
在应力波分析的基础上，对两根弹性杆纵向共轴撞击过程进行了动画模拟。
The animate simulation for the coaxial collision of two elastic bars is performed onthe basis of the analyses for the stress waves.
主要观察指标：不同的角度撞击时下颌骨各部分的应力和应变变化。
MAIN OUTCOME MEASURES: The stress and stress changes of mandible when impacted from different angles.
根据一维应力波传播的理论，提出了圆柱壳受轴向撞击破坏的简化模型，分析了这一破坏过程中的能量变化。
Based on the one-dimensional wave propagation theory, a simplified dynamic model was presented to analyze the failure and energy absorption of the tubes under impact load.
本文应用冲击机械系统动力学分析打桩过程中锤体与桩撞击时应力波的产生、传播以及该波对沉桩过程的影响。
Mechanical impact dynamics is used to analyse the production and spread of stress wave when hydraulic pile hammer hammerblows piles, the stress wave influence the course of driving pile.
本文采用应力波特征线方法详细分析了刚体撞块撞击固支的弹性长杆的撞击过程。
In this paer, by the use of the method of characteristic line of stress wave, a prediction analysis for the sacond impact of an elastic bar impacting on a rigid block is given.
根据一维应力波传播理论，提出了圆柱壳受轴向撞击破坏的简化模型，分析了这一破坏过程中的能量变化。
Based on the one dimensional wave propagation theory, a simple dynamic model was presented to analyze the failure process and energy absorption of the shells under impact loading.
冲击设备(7)向波导(21)提供撞击脉冲，在波导中产生压缩应力波和反射的拉伸应力波，应力波在波导中传播。
A percussion device (7) gives impact pulses to a waveguide (21), where a compression stress wave and a reflected tensile stress wave are generated, which propagate in the waveguide.
冲击设备(7)向波导(21)提供撞击脉冲，在波导中产生压缩应力波和反射的拉伸应力波，应力波在波导中传播。
A percussion device (7) gives impact pulses to a waveguide (21), where a compression stress wave and a reflected tensile stress wave are generated, which propagate in the waveguide.
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