1) drop impact
跌落碰撞
1.
In order to predict failure location of BGA lead-free solder joints under a drop impact,ABAQUS software is used to analysis stress distribution of the solder joints.
为了预测跌落碰撞下球栅阵列(BGA)封装中无铅焊点的失效,采用ABAQUS软件来模拟跌落碰撞过程中焊点的应力分布。
2.
Existent anomalistic hexagon structure of the honeycomb paperboard core is attributable to primitive glue applicator,which has an impact on its compression characteristics,so drop impact characteristics of the honeycomb paperboard have been put forward under Virtual Simulation.
现有蜂窝纸制芯设备简陋,导致在生产蜂窝纸芯过程中出现不规则六边形纸芯结构的现象,运用虚拟仿真技术分析了不规则蜂窝纸的跌落碰撞过程。
3.
Drop impact of the small tracked mobile robot body was simulated by nonlinear finite element method.
文中应用非线性有限元分析法对小型履带式移动机器人机动平台的跌落碰撞过程进行仿真计算。
2) fluctuation of impact parameter
碰撞参量的涨落
1.
In this paper, we analyse the various charged hadron distributions given by E-802 Collaboration at BNL/AGS in terms of thermalization model, which considers the fluctuation of impact parameter and stopping power of nucleus in the center-of-mass frame of participants.
在反应体质心系中，依据热化模型并考虑碰撞参量的涨落及核阻止性，对工作在ＢＮＬ／ＡＧＳ上Ｅ－８０２合作组给出的中心和周边Ｓｉ与Ａｕ、Ｃｕ和Ａｌ相互作用的强子快度分布进行了分析和讨论。
3) falling-ball impact test
落球碰撞试验
4) Wordsworth's Translation in China
碰撞、失落与回归
6) drop
[英][drɔp] [美][drɑp]
跌落
1.
SMT solder joint reliability issues caused by drop impact are received more and more attention in recent years.
针对在跌落碰撞条件下便携式电子产品中SMT连接焊点的可靠性问题,对该领域相关的理论和实验研究成果进行了综述。
2.
By using the Laplace transformation and Simulink, the dynamic characteristics of product under a varies of inputs and drop process are analyzed.
建立了缓冲包装系统的动力学模型，列写了系统在振动、冲击状态下的微分方程，在对微分方程进行拉民变换的基础上，讨论了运用Simulink动态仿真工具来仿真包装件在多种激励下及跌落过程中的动态特性。
3.
The results showed that the damage boundary differs as the orientation changes,and even when the cookies are dropped in the same orientation,the damage rate is not identical.
结果表明,饼干不同方位的破损边界曲线都不相同,且同一方位的跌落下,不同破损率破损边界曲线也不相同。
补充资料：跌落
①（物体）往下掉。②（价格、产量等）下降。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条