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Sensitivity Analysis of Piston Wind in Hoistway of Super High-Speed Elevator

机译:超高速电梯井道活塞风的敏感性分析

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摘要

The piston wind will be produced when the car runs at high speed in the narrow and long hoistway, which will produce aerodynamic noise with the car enclosure and the hoistway walls, thus affecting ride comfort. In order to put forward better noise reduction measures, a piston wind model of super high-speed elevator with ventilation holes during the whole operation process was established firstly in this paper. Then, based on this theoretical model, the influence of the variation of ventilation-hole area, hoistway blockage ratio and car length on the piston wind was analysed separately. The analysis proved that the larger the area of ventilation holes, the more obvious the weakening of piston wind was when the building code permits. With the increase of blockage ratio, the intensity of piston wind increases obviously, but the duration of maximum piston wind does not change obviously. As the length of the car increases, there is no significant change in the movement of the piston wind, and this small change can be ignored in engineering applications.
机译:当汽车在狭窄和长井中的高速运行时,活塞风将产生,这将产生带有汽车外壳和井道墙壁的空气动力学噪音,从而影响乘坐舒适性。为了提出更好的降噪测量措施,在本文中首先建立了整个操作过程中具有通风孔的超高速电梯的活塞风模型。然后,基于该理论模型,分别分别分别对活塞风上的通风孔面积,井道阻塞比和汽车长度的影响。分析证明,通风孔面积越大,活塞风的弱化越明显是建筑码的允许。随着阻塞比的增加,活塞风的强度显然增加,但最大活塞风的持续时间不会明显改变。随着汽车的长度增加,活塞风的运动没有显着变化,并且在工程应用中可以忽略这种小变化。

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