Under the condition of acceleration response spectrum being consistent, the engineering properties of near-fault velocity pulse are studied.
在加速度反应谱一致的前提下，研究了近断层速度脉冲的工程特性。
The sixth chapter studies the techniques in measuring the bearings changing rate and centrifugal acceleration, and poses several algorithms of measuring pulse Doppler shift frequency changing rate.
第六章主要对角度变化率和离心加速度参数的获取技术进行了研究，提出了几种高精度测量脉冲序列多普勒频率变化率的方法。
The damping can obviously decrease the peaks of displacement and acceleration of nonlinearcushioning system, but has on effect on the pulse duration.
阻尼使非线性包装系统位移峰值和加速度峰值明显降低，但对脉冲持续时间几乎无影响。
Firstly, the structure of the laser accelerometer based on PSD are designed in this dissertation. The relation between the output pulse difference and the input acceleration is derived.
本论文主要研究内容：首先，设计了基于PSD的激光加速度计系统的结构，针对此结构推导了该数字式力平衡加速度计输出脉冲差与输入加速度之间的关系。
The thickness of blood vessels, inside diameter, area, flow, the length of color flow column, maximum velocity, acceleration and deceleration time were of good value on pulse tension.
对确定脉体有价值的指标是寸口脉管壁的厚度、管腔内径、管腔面积和血流量的大小以及寸口脉血流柱的长度、峰值流速血流、加速度和减速时间。
When the acceleration period has terminated, the switch means is controlled by a PWM pulse of the duty ratio in accordance with the speed instruction data, there by driving the DC motor.
在该加速期间结束时，以占空比与速度指令数据对应的PW M脉冲来控制开关机构，从而驱动该直流马达。
When the head disk collision occurs, the peak acceleration of the shock pulse approximately follows a linear relationship with the inverse of the excitation duration.
当头盘系统发生碰撞时，冲击激励峰值加速度与作用时间的倒数之间具有近似线性关系。
For a sufficiently short and intense laser, there is strong acceleration of the electron inside the laser pulse, and the corresponding wake field acceleration becomes much weaker.
对于更短的强激光脉冲，脉冲内电子的有质动力加速占据主导地位，加速电子能够有很高的能量，而此时尾波场加速则变得很弱。
The general formulae which represent the critical intensity of the laser pulse for the acceleration and the corresponding energy gain of the particles are derived.
导出了电子获得加速所需的激光强度阈值及相应的电子能量增益的一般解析表达式。
The secondary impact acceleration pulse which is produced by the drop-test can influence the testing parameters and cause fatigue and damage of components.
凸轮式跌落冲击台产生的次冲击能够影响试件的测试参数和性能，并能造成试件的疲劳损伤与失效。
It's a good support of multi-pulse electron acceleration, though the universality of the conclusion needs further verification.
虽然其普适性还有待进一步验证，但无疑是对多激光电子加速优越性的一个有力的支持。
The shock characteristics of linear stacking packaging system were investigated under the action of half-sine acceleration pulse.
研究多层堆码包装系统在半正弦脉冲激励下的冲击特性。
The shock characteristics of a tangent packaging system with critical components are investigated under action of a half-sine acceleration pulse.
研究考虑易损件的正切型包装系统在半正弦脉冲激励下的冲击特性。
A general dynamic model of cushioning packaging systems under different acceleration pulse is suggested, and the corresponding software is developed for the analysis of cushioning packaging systems.
建立了各类缓冲包装系统在不同加速度脉冲激励下的统一的动力学模型，开发了缓冲包装分析系统应用软件。
It was concluded that the effects of peak pulse acceleration, pulse duration, Angle of tilted support spring and damping ratio of the system are particularly noticeable.
研究表明：无量纲脉冲激励幅值、无量纲脉冲激励周期、系统支承角及阻尼等对系统响应峰值影响显著。
The damage potential and evaluation method of a tangent nonlinear packaging system with critical component was investigated under the action of rectangular acceleration pulse.
研究了正切包装系统的关键部件在矩形脉冲激励下的冲击破损评价方法。
The damage potential and evaluation method of a tangent nonlinear packaging system with critical component was investigated under the action of rectangular acceleration pulse.
研究了正切包装系统的关键部件在矩形脉冲激励下的冲击破损评价方法。
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