1) elastic-plastic impact
弹塑性碰撞
1.
Simulation of elastic-plastic impact with modified smoothed particle hydrodynamics method;
模拟弹塑性碰撞的修正SPH方法
3) elastic collision
弹性碰撞
1.
Research about the relation between two-dimensional elastic collision and momentun in geometry;
二维弹性碰撞与动量关系的几何研究
2.
On conservation of momentum in elastic collision process;
关于弹性碰撞过程中动量守恒问题的讨论
3.
The experiments of non-elastic collision between the Newton s balls are carried out with its results discussed,by which many problems of non-elastic collision in engineering could be guided.
对于牛顿球之间的非弹性碰撞实验进行分析和讨论 ,其结果既体现牛顿定理的应用 ,又对工程中许多非弹性碰撞问题的研究具有指导作用。
4) elastic impact
弹性碰撞
1.
Dynamic model of elastic impact of helicopter rotor blades
直升机旋翼桨叶的弹性碰撞动力学建模
2.
The elastic impact of high-speed ships is studied theoretically.
从理论的角度以高速船的弹性碰撞问题为对象,将船体板架简化为板条梁结构,建立了薄壁梁—刚性墙碰撞模型,分析了其初始条件及边界条件,并对控制方程进行了数值求解。
3.
It can be concluded that,when only elastic impact is considered, the coefficient of restitution is determined by not only the material property o.
给出了物体与细长杆或梁弹性碰撞恢复系数的一种求解方法。
5) positive plasticity collision
塑性正碰撞
1.
By using positive plasticity collision principle and functional equation, a new functional equation is set up between the gliding object and barricade, a formula deduced calculating the weight of barricade, from which the thrust and counter-slide force of landslide can be worked out, finally an overall stability coefficient, taken as the only numerical value, derived.
用塑性正碰撞原理和功能方程,建立滑移体与挡墙(或锚杆档墙)关系的功能方程,导出计算挡墙重量(或锚杆挡墙重量)公式,由此重量计算滑坡推力和抗滑力,获取整体稳定安全系数,该系数是唯一值。
6) Non-elastic collision
非弹性碰撞
1.
The experiments of non-elastic collision between the Newton s balls are carried out with its results discussed,by which many problems of non-elastic collision in engineering could be guided.
对于牛顿球之间的非弹性碰撞实验进行分析和讨论 ,其结果既体现牛顿定理的应用 ,又对工程中许多非弹性碰撞问题的研究具有指导作用。
2.
This paper analyzes mainly the dynamic behaviors following the non-elastic collision with envi-ronment.
本文着重分析了与环境发生非弹性碰撞时腕力传感器的动态特性，研究表明，接触环境刚度不同，碰撞后的运动情形也不同。
补充资料：弹—塑性变分原理
弹—塑性变分原理
elastic-plastic variational principle
tan一suxing bionfen yuanll弹一塑性变分原理(elastie一plastic variation-al Principle)适于弹一塑性材料的能量泛函的极值理论。包括最小势能原理和最小余能原理。塑性加工力学中常用最小势能原理。变形力学问题的能量解法和有限元解法都基于最小势能原理。最小势能原理有全量理论最小势能原理和增量理论最小势能原理。 全量理论最小势能原理在极值路径(应变比能取极值的路径)下运动许可的位移场u‘中，真实的位移和应变使所对应的总势能取最小，即总势能泛涵巾取最小值，其表达式为”一0，’一万〔A(一，一关一〕dV一好多!一‘“ (l)式中“:为位移;户:为外力已知面上的单位表面力;关为体力;A(气)为应变比能。 A(勒)随材料的模型而异。对应变硬化材料(图a)， E严_‘_‘_ A(乓r)一二丁二一气助+{刃(r)dr(2) 6(1一2刃~一“‘J一、-一、- 0式中E，，分别为弹性模量和泊松比;艺一硫瓜，r一掩不万，，，f，一，一音。魔。，，一，一，一音。*。!，;。f，为克罗内克(L.Kroneeker)记号，i=夕时a，一l，i笋少时民，一。，把式(2)代入式(1)便得到卡恰诺夫(几·M·Ka、aHoe)原理x的表达式。i厂:八 I’—几 I’一 ab 乞一乏(r)关系图 a一应变硬化材料;占~理想塑性材料 对于理想塑性材料(图b)， 艺~ZGr(r
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