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首页> 外文会议>International Conference on Applied Mechanics, Materials and Manufacturing >FEM for brake discs of SiC 3D continuous ceramic reinforced 7075 Aluminum alloy for CRH3 trains applying Emergency Braking
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FEM for brake discs of SiC 3D continuous ceramic reinforced 7075 Aluminum alloy for CRH3 trains applying Emergency Braking

机译：用于CRH3火车的SiC 3D连续陶瓷增强7075铝合金制动盘的FEM，应用紧急制动

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The shaft disc prepared with SiC 3D continuous ceramic frame reinforced aluminum alloy 7075 (3D-SiC/Al) composite of the CRH3 high speed train with a speed at 250 km/h was chosen as the research object, and the course of emergency brake was simulated by Cosmos. A three dimension model was established, the way of applying loads were discussed, and the temperature field and thermal stress field were obtained. The result shows that the highest temperature appears at about 57 s since braking and the value is about 373°C. The biggest stress is about 237 MPa, appearing at about 51 s since braking, the regions distribute at the surface corresponding with the radiating ribs, and near the inner diameter. The hoop stress is larger than other directions. The result shows that the thermal stress duce to the transient temperature distribution model is released well for the distribution of the 3D continuous ceramic frame reinforced aluminum alloy 7075 structure compares with the conventional brake disc, which can satisfy the requirement of the shaft disc of the high speed train with a speed at 250 km/h applying emergency braking.
机译：用SiC 3D连续陶瓷框架增强铝合金7075（3D-SiC / Al）复合的CRH3高速列车的轴盘被选中为250 km / h，作为研究对象，紧急制动器的过程是模拟宇宙。建立了三维模型，讨论了施加载荷的方式，获得了温度场和热应力场。结果表明，最高温度出现在大约57秒，由于制动，值约为373°C。最大的应力是约237MPa，由于制动以来出现在大约51秒，区域在与辐射肋相对应的表面处分布，并且在内径附近。箍应力大于其他方向。结果表明，对于瞬态温度分布模型的热应力释放井，用于3D连续陶瓷框架增强铝合金7075结构的分布与传统的制动盘相比，这可以满足高的轴盘的要求速度火车速度为250 km / h施加紧急制动。

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