同时,当冲击速度恒定不变时,我们也观察到了相同的失效模式。
Meanwhile, the same failure modes are found with the constant impact velocity.
文中推导了圆柱壳塑性动力扭转屈曲线性方程,获得了临界冲击速度。
The linear dynamic torsional buckling equations for the rigid plastic shell is drived, and the critical impact velocity is given.
分析了初始挠度、冲击速度、耦合刚度等因素对临界轴向缩短量的影响。
The present attention is mainly focused on the effect of initial deflection, impact velocity and coupled stiffness.
对于非线性包装系统,系统参数和无量纲跌落冲击速度是产品跌落破损的评价量。
In non linear packaging system, the system parameter and dimensionless dropping shock velocity are the evaluation quantities.
研究了冲蚀角度、冲击速度、磨粒尺寸、冲蚀时间等影响因素对材料的冲蚀率的影响。
The effects of impact Angle, particle velocity, erodent size and impact time were demonstrated.
同时根据材料强度理论和动态强化规律推导出材料微观结构参数与冲击速度之间的关系。
Meanwhile, the relationship between the material microscopic structure parameter and the impact speed has been concluded according to the material strength theory and the dynamic strengthened rule.
研究结果表明,在此冲击速度下,材料处于损伤状态和由损伤状态向孔洞崩塌过渡阶段。
Experimental results show that the material is at the stage of damage or the transition stage from damage to void collapse under these impact velocities.
当径厚比、约束条件、材料参数等不变时,随着冲击速度的增大,屈曲由轴对称变为非轴对称。
When the radius-to-thickness ratio, constraint condition and material parameters are given, the buckling mode is from axisymmetric to unaxisymmetric as impact velocity increases.
随着冲击速度的提高,材料具有应变率正敏感性,但到一定程度材料反而显示出应变率负敏感性。
With the increment of impact velocity, the new material appears positive strain rate sensitivity, but when the increment reaches a certain degree, the material shows negative strain rate sensitivity.
提出了两种提高冲击速度的方法,建立了颗粒运动的力学方程,计算和分析了影响冲击速度的参数。
Two methods to improve the impact velocity are proposed. The dynamic equation of particle motion is established. The influence parameters to the impact velocity are calculated and analyzed.
为了研究不同冲击速度条件下块煤冲击韧度的变化特征,以及块煤节理方向性对块煤冲击韧度的变化特性。
In order to understand the properties of impact toughness of coal with different impact speeds and the change of impact toughness of lump coal to joint directivity of lump coal.
研究结果表明:土体初始屈服冲击速度非常小,其中黏聚力对其有较大影响,而内摩擦角对其影响相对较小。
The result shows that the impact velocity of initial yield is very small for the soil, and the cohesion has an obvious influence on it while the internal friction Angle does relatively small.
作者在自行设计并制造的一台单粒子冲击试验机上对部分纯金属和低碳钢在不同的冲击速度下进行冲击试验。
A single particle impact test device was designed and manufactured by the authors. Several pure metals and low carbon steels were impacted at different velocities using this test device.
对含缺陷蜂窝结构平台应力的研究发现,当变形模式为过渡模式或动态模式时结构平台应力与冲击速度的平方成线性关系。
It is found that the plateau stress is proportional to the square of the impact velocity when the imperfect honeycombs are deformed at transitional mode or dynamic mode.
发现随着冲击位移的增加,冲击速度几乎呈线性下降,冲击加速度很快减少到一个极小值,而能量吸收阶段中前阶段的吸收速度比后阶段快。
The results indicate that, with the increase of the impact displacement, the impact velocity decreases almost linearly, and the impact acceleration quickly declines to a minimum.
第一波灾害冲击后,清理灾区的速度给予公众希望,人们相信经济将会重新的振作起来。
The speed of the clear-up is raising hopes that the economy will prove resilient after the initial shock.
资讯冲击我们的速度是无法避免的(它正变得更糟)。
The speed with which information hurtles towards us is unavoidable (and it's getting worse).
强大的激光束产生强烈的冲击波,后者将以每小时100万英里的速度压碎靶丸,同时产生一亿摄氏度左右的高温。
The intense beams produce a powerful shockwave that crunches the fuel pellet at a million miles an hour, generating temperatures of around 100, 000, 000C.
速度升高到1.3马赫(速度单位,1马赫=音速=340.29m/s——译者注)以后,不会再对冲击波强度造成太大的影响。
Increasing speeds above Mach 1.3 results in only small changes in shock wave strength.
冲击波的行进方向和强度受到风、飞行速度及方向、气温和气压的影响。
The direction of travel and strength of shock waves are influenced by wind, speed, and direction, and by air temperature and pressure.
塔顶稀薄的空气冲击着他的肺,凌厉的风毫无阻拦地攻击着他,困扰着他的身体,降低他的速度。
On top the thin air slashed his lungs and the stiff wind attacked him without interference, molesting his body and slowing his progress.
热辐射密度以核爆点距离平方倒数的速度衰减,爆炸、冲击波、致电离辐射效应的衰减速度则更快。
The intensity of thermal radiation decreases only as the inverse square of the distance from a nuclear detonation, while blast, shock, and prompt ionizing radiation effects decrease more rapidly.
美国汽车业巨头们的垮掉是个漫长的过程,然而最后一栽的速度之快还是使每个局内人遭受巨大冲击。
The collapse of America's car giants has been a long time coming, but the speed of the final plunge has shaken everyone involved.
但是联储会官员被大型非次级房贷出借公司,如Countrywide及CapitalOne所受到冲击的速度惊呆了。
But Fed officials are said to have been taken aback by the speed with which large non-subprime lenders, such as Countrywide and Capital One, have been hit.
K VH公司的DSP- 4000军用光纤陀螺是一种高性能、低成本的全光纤陀螺,可靠性高,性能优越,具有优秀的抗振动、抗冲击、加速度和生存性能。
KVH's militarized DSP-4000 FOG is a high-performance, low-cost, all-fiber gyro that ensures high reliability, superior performance, and exceptional vibration, shock, and acceleration survivability.
研究结果表明随着跌落高度、跌落次数的增加,苹果冲击力、加速度峰值、冲击最大变形、冲击结束后的残余变形逐渐增大。
Results show that with the increase of dropping height and repeated impact, the impact force, peak acceleration, maximum deformation and remaining deformation of apple increase.
通过理论分析和数值计算,得到了临界速度与冲击质量、临界长度及线性强化模量间的关系。
The relationship among critical velocity and impact mass, critical buckling length, hardening modulus is given by using theoretical analysis and numerical computation.
介绍了用标准材料与待测材料的冲击波速度的关系评价阻抗匹配实验质量的一种方法。
This paper gives a method to evaluate the quality of the impedance-matching experiments by the relation between standard and unknown materials shock wave velocities.
介绍了用标准材料与待测材料的冲击波速度的关系评价阻抗匹配实验质量的一种方法。
This paper gives a method to evaluate the quality of the impedance-matching experiments by the relation between standard and unknown materials shock wave velocities.
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