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发明公开
CN106248486A 一种确定金属材料接触碰撞变形指数的试验方法 有权

一种确定金属材料接触碰撞变形指数的试验方法
摘要：
本发明公开一种确定金属材料接触碰撞变形指数的试验方法，包括以下步骤：S1.试验准备：准备试验材料材料：硬金属块A、硬金属块B、软金属块C、推力计和激光测距传感器；S2.试验过程：推力计推动硬金属块B，使软金属块C受硬金属块A和硬金属块B挤压变形，记录推力计的压力值以及硬金属块A和硬金属块B距离变化值；S3.重复试验：重复步骤S2以获取m组碰撞力数据和变形量数据，记各第i组碰撞力数据为FNi，第i组总变形量为δi，1≤i≤m；S4.碰撞指数计算：将各组数据带入函数计算获得对空行程Δ和幂指数n的参数辨识，本发明试验过程简单，测试出的碰撞指数与具体接触碰撞的材料种类相关联，获得的碰撞指数更精确且更符合实际应用。
摘要（英）：

The invention discloses an experiment method for determining the contact-impact deformation index of a metal material. The experiment method includes the steps of S1, preparing experiment materials which include a hard metal block A, a hard metal block B, a soft metal block C, a thrust meter and a laser ranging sensor; S2, performing an experiment, to be more specific, using the thrust meter to push the hard metal block B to allow the soft metal block C to deform under the extrusion of the hard metal block A and the hard metal block B, and recording the pressure value of the thrust meter and the distance change value of the hard metal block A and the hard metal block B; S3, repeating the experiment, to be more specific, repeating the step S2 to obtain m groups of impact force data and deformation quantity data, and recording the impact force data of the ith group as FNi and the total deformation quantity of the ith group as deltai, wherein 1

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