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The friction is modeled with a modified coulomb friction model. 模具与板料的接触摩擦采用一个修正的库仑摩擦模型。
This thesis analyses thecommon penalty function method and modified coulomb friction model used for contactanalysis in sheet metal forming simulation. 分析了常用的罚函数法接触算法和用于板料成形数值模拟的修正库仑摩擦模型。
The results indicate that the result of local Coulomb friction model and nonlocal friction model is not too distinctive. 研究结果表明：不考虑表面微凸的情况，局部库仑摩擦模型与非局部摩擦模型的结果差别不大。
Base on Coulomb friction model, the workpieces with different geometry rotating in free annular polishing are simulated. 本文基于库仑摩擦模型，模拟了不同形状的工件在环形抛光的运动。
The paper introduced the principles of case rotation system, presented the algorithm of trajectory planning, analyzed the characteristics of control system, and provided a compensation method for system friction nonlinearity by Coulomb friction model. 文中介绍了壳体翻滚系统的组成与原理,提出了一种轨迹规划的算法,分析了被控对象的特性,应用库仑摩擦模型补偿系统摩擦非线性,并对控制系统进行建模与仿真。
On the basis of Coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of MSC. MARC. 在数值模拟方面，以考虑锚固围岩满足规则化库仑摩擦模型为基础，利用虚功原理推导了接触问题的有限元方程的计算格式，为开发运用大型商用有限元软件MSC.
Coulomb friction model with high accuracy is proposed so that more accurate equations of motion can be established for the transient response of the singledisk rotor which drops onto the backup bearing as soon as AMB shuts down. 摘要就磁轴承发生故障时转子坠入备用轴承所产生的非线性瞬态响应，提出了摩擦力的计算模型，从理论上建立了更为精确的运动微分方程。
In the analysis for sliding base isolation, instead of the traditional Coulomb friction model the continuous friction model is proposed in order to avoid to trace the transient boundary between meshing and sliding and to reduce the calculated error. 在基底滑移隔震分析中 ,提出了用连续摩擦力模型取代传统的库仑摩擦力模型 ,避免跟踪啮合滑移的过渡边界并可减小计算误差。
In the analysis for sliding base isolation, the continuous friction model instead of the traditional Coulomb friction model is proposed in order to avoid the tracing of the transient boundary between meshing and sliding and to reduce the calculated error. 在基底滑移隔震分析中,提出用连续摩擦力模型取代传统库仑摩擦力模型,以避免跟踪啮合滑移的过渡边界并可减小计算误差。
In the analysis of sliding base isolation, a modified continuous friction model is proposed to replace the conventional Coulomb friction model, which can avoid tracing the transient boundary between meshing and sliding and reduce the calculating error. 在基底滑移隔震分析中,提出了修正的连续摩擦力模型以取代传统的库仑摩擦力模型,避免了计算过程中跟踪啮合滑移的过渡边界从而可降低计算误差。
A Coulomb friction model with high accuracy is proposed so that more accurate equations of motion can be established for the transient response of the single-disk rotor which drops onto the back-up bearing as soon as AMB shuts down. 摘要就磁轴承发生故障时转子坠入备用轴承所?生的非线性瞬态响应，提出了摩擦力的计算模型，从理论上建立了更为精确的运动微分方程。
Two simple friction coefficient models,Coulomb friction law and static friction model,are introduced. They are combined with the tire unified brush theory to analyze tire friction problem. 介绍了2种简单的摩擦系数模型(库仑摩擦定律、静摩擦力模型),并将其与轮胎统一刷子理论模型结合起来分析轮胎的摩擦问题。
Hertz contact model was used to deal with normal impact force, and Hertz tangential contact model and Coulomb friction model were used to deal with static tangential impact force and slip frictional force, respectively. 用Hertz接触模型处理法向撞击力,分别用Hertz切向接触模型和Coulomb摩擦力模型处理粘滞状态和滑动状态的摩擦力。
and adopts amended Coulomb friction model to solving friction problem in hard cutting. 根据硬态切削的特点,采用修正的库仑摩擦模型来模拟硬态切削过程中的摩擦问题。
The equivalent linearization results obtained by probabilistic method are inducted to treat landing gear non linear parameters such as shock absorber air spring force, hydraulic damping and Coulomb friction, tire stiffness and damping. 引入了概率平均意义上的当量线性化方法 ,用该方法处理了起落架缓冲器空气弹簧、油液阻尼和库仑摩擦力以及轮胎刚度和阻尼等非线性参数。
Secondly, the three nodes contact element obeying the elastic Coulomb friction constitutive model is presented. 并介绍了服从弹性库仑摩擦本构模型的三结点接触单元。
The interaction of sliding surfaces is modeled with a Coulomb friction law. 接触面间的摩擦采用库仑摩擦模型。
The rod string dynamics model including the influences of rod-fluid-tubing viscous friction and rod-tubing Coulomb friction is developed. 在建立定向井有杆抽油系统的预测数学模型时 ,计入了杆液管粘性摩擦和定向井井斜造成的杆管库仑摩擦 ,同时考虑了实际泵况对系统的影响。
The other is the modified Dahl model that adopts Dahl model instead of Bouc Wen model to simulate Coulomb friction force to avoid the determination of too many parameters. 另一种称为修正的Dahl模型 ,它采用Dahl模型来模拟库仑摩擦力 ,克服了常用的Bouc -Wen模型需要确定的参数过多的缺点。
In the numerical model, the direct restraint method and the Coulomb friction method are introduced. A simulated temperature method is used to realize pre-tighten force. 在模型建立中,接触面采用直接约束模型,摩擦力的模拟选用库仑摩擦模型,在施加预紧力时,采用了虚拟温度方法。

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