rigid impact

Finite Element Analysis of Impact between Heavy Vehicle and Semi-rigid Guardrail

重型车辆与半刚性护栏碰撞的有限元分析

Finally , the high rigid, high impact and high flowing PP was developed.

研制成功了高刚性 、 高韧性、高流动性聚丙烯专用料.

However, the rigid legs in the presented robot bring some big impact acceleration into the robot body when it walks normally. This situation may have interference on the control system, even destroying the control system, and making the robot hard to be controlled.

但是刚性腿的机器人在正常行走中机体受到的冲击加速度非常大，可能会对控制系统造成干扰，使机器人难以控制，严重的话甚至可能损坏控制系统。

A rigid aeroshell for aerodynamic deceleration and landing impact will result in mass and sizes of the re_entry vehicles exceeding several times those of the payload bus.

长期以来返回式飞行器为承受再入气动载荷和着陆冲击，采用具有防热层的刚性飞行器壳体，导致返回舱的质量和外形大于有效载荷的数倍。

Advantages: high hardness, rigid and impact resistance.

优点: 具有极高的钢性和硬度, 耐冲击.

Several models are built respectively: kinematics model by D-H reference frame, control system model of single-supporting and flying by Lagrange function, and states-switching model by rigid impact course.

分别基于D-H坐标建立机器人运动学模型，基于Lagrange函数建立单脚支撑期和飞行期的控制系统模型，基于刚性冲击过程建立状态切换模型，从而为后续的研究奠定基础。

Effects of dosages of ABS on the impact strength of rigid PVC were studied.

研究了ABS用量变化对改性硬质聚氯乙烯体系冲击性能的影响.

Rigid beliefs may adversely impact the pelvis and legs, bladder, kidneys, reproductive organs, digestion and sleeping.

刚性信仰可能对骨盆和腿 、 膀胱 、 肾脏 、 生殖器官 、 消化和睡眠产生不利的影响.

In order to investigate the dynamic characteristics of blade impact to droop stop, a moderate deflection beam model is adopted to deal with the elastic deformations, and the finite rotation is introduced to take account of the rigid motions around hinges.

针对铰接式旋翼桨叶扬起下坠碰撞问题，采用中等变形梁模型，同时引入有限转角模拟桨叶绕铰的刚性运动。

The test shows that the mean action force increases with the impact speed, and the mean action force has no influence over the ratio of the rigid mass block vs the mass of the thin-wall structure subject to impact.

数值实验表明，随着碰撞速度的提高，平均作用力会相应增大，撞击薄壁结构的刚性质量块和薄壁结构的质量比对平均作用力没有影响。

In this paper, the problem of penetrating into semi-infinite thick target is divided into rigid projectiles penetration, high-speed long rods penetration, and penetration problems that impact speed changes in large range. Theoretical analysis and numerical simulations are carried out systematically to study these problems.

本文针对侵彻半无限厚靶问题，将其划分成刚性弹侵彻、长杆弹高速侵彻、大范围着速的侵彻问题等方面，系统地开展了理论分析和数值模拟研究。