共查询到20条相似文献,搜索用时 46 毫秒
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接合过程中摩擦片滑动摩擦发热是换挡离合器摩擦片失效的主要原因。建立了摩擦片的二维传热模型,分析换挡离合器接合过程中热传导二维温度场及各种边界条件,应用Ansys有限元软件对换挡离合器二维温度场进行了计算机模拟,在此基础上对结果进行了讨论和分析,为换挡离合器设计,研究进行理论准备。 相似文献
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Designing distributed modal sensors for plate structures using finite element analysis 总被引:1,自引:0,他引:1
Designing constant thickness, distributed modal transducers for plate structures is difficult. One option is to alter sensor effectiveness by changing the electrode pattern. This paper considers an alternative approach where the shape of the sensor is optimised, and parameterises the sensor boundary using a limited number of boundary points and spline interpolation. The modes are obtained from a finite element model of the plate structure, and used to create an objective function to design modal sensors. The approach is demonstrated on a plate structure with various boundary conditions. 相似文献
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This paper describes a new algorithm to handle problems in dynamic finite element analysis and run-time simulation, where mesh re-generation or dynamic adjustment is required. Based on a concept called coded box cell (CBC) substitution, this algorithm can be applied to both initial mesh generation and dynamic mesh adjustment along the border zones of multiple primitives that form an entire model. During the initial mesh generation, appropriate labels are assigned to the nodes and the faces of each finite element. These labels are used to facilitate decision-making in dynamic mesh adjustment. A mapping technique is adopted to transform curved surfaces to plain surfaces for the ease of automatic mesh adjustment while still using the same algorithm. The results of a case study show that a finite element mesh can be adjusted dynamically and locally around its border zone; and the algorithm can be utilized effectively to simulate the thermal behavior of a device under real operating conditions. 相似文献
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为了设计出满足需求,并且最节省材料的膜片,对两种钢片挠性联轴器的膜片进行了有限元分析.分别计算一定规格的四孔,六孔骨片在各种工况下的应力状况.分析出了厚度、孔数、片数等因素对膜片性能及螺栓负荷的影响规律.其次,结合骨片材料的许用应力以及螺栓的许用应力,给出了实际膜片所需骨片数的计算方法,对膜片的具体设计提供了参考依据. 相似文献