文章详细信息 关键词: 离散元法;;计算参数;;数值模拟;;计算时步;;接触刚度 [gap=1240]Keywords: DEM;Calculation parameters;Digital simulation;Time step;Contact stiffness
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一般而言,Lagrangian method可产生较佳的计算结果,同时此方法对接触劲度(Contact stiffness)之值较不敏感。但在某些情况下,特别是接触物体有较大的扭曲时,会导至过多的数值叠代次数,造成计算量的大量增加。
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Contact stiffness update 接触刚度更新 ; 联系硬度更新
hertz contact stiffness 赫兹接触刚度
elastic contact stiffness 弹性接触刚度
contact stiffness model 接触刚度模型
normal contact stiffness 法向接触刚度
sticking contact stiffness 粘性接触刚度
Tangential contact stiffness 切向接触刚度
Normal contact stiffness is an important parameter affecting the dynamics performance of contact bodies.
法向接触刚度是影响接触体动力学性能的重要参数。
参考来源 - 两圆柱体结合面的法向接触刚度分形模型It is well known that surface quality of parts has great influence on the operational performance such as wearing quality, figure strength and contact stiffness.
零件表面质量对零件的耐磨性、抗疲劳强度、接触刚度等使用性能和寿命有很大的影响。
参考来源 - 凸轮电化学机械光整加工技术及控制系统研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Firstly, the contact stiffness between the workpiece and fixture elements is calculated.
首先,确定了工件与夹具元件之间的接触刚度;
Then, normal contact stiffness and shear contact stiffness of sand particles are derived according to researches above.
在砂土颗粒接触模型的基础上推导出砂土颗粒法向接触刚度、切向接触刚度的表达式。
The influences of many contact parameters such as initial normal force, contact angle, contact stiffness and coefficient of friction were obtained.
获得了凸肩接触面初始正压力、接触角度、接触刚度、摩擦系数等多种参数对叶片非线性响应的影响规律。
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