空冷风机系统运行时竖向扰力试验研究

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (10) : 74-79.

论文

空冷风机系统运行时竖向扰力试验研究

屈铁军 1 ，王献云 1，张梅 1

作者信息 +

Experimental Study on Vertical Oscillation Forces of the Air Cooling Fan System in Running

Qu Tiejun 1 Wang Xianyun 1 Zhang Mei 1

Author information +

文章历史 +

摘要

为了研究直接空冷系统的风机运行时对风机桥架产生的扰力，设计制作了1：1试验模型，选择3种工况进行试验，运用无线测量技术对风机运行时风机轴的应变及转速进行了测试，通过应变分离技术确定了由转子质量偏心引起的扰力、由扇叶竖向振动引起的弯矩、由驱动风机旋转引起的扭矩、由空气反作用引起的竖向扰力，分析了不同工况、不同转速、不同扇叶数量等条件下四种扰力的特性。本文的试验结果可供从事空冷风机桥架及其支撑结构设计的人员参考。

Abstract

To research the oscillation forces of fans of the direct air cooling system during operation on the fan bridge truss, 1:1 test model is made and three working conditions are selected to take the test. The strain and speed of revolution of the fan shaft are tested when the fans are running through radio survey techniques. The strain isolation technique determined oscillation forces produced by rotor mass eccentricity, bending moment produced by vertical vibration of the fan blade, torque produced by driving fan revolution and vertical oscillation forces produced by air reaction. Then four characteristics of oscillation forces in the conditions of different operating modes, different speeds of revolution and different numbers of fan blade are analyzed. The test result in this paper is for the reference of the ones who design the air cooling fan bridge truss and supporting structure.

导出引用

屈铁军 ;王献云;张梅 . 空冷风机系统运行时竖向扰力试验研究[J]. 振动与冲击, 2013, 32(10): 74-79

Qu Tiejun Wang Xianyun Zhang Mei . Experimental Study on Vertical Oscillation Forces of the Air Cooling Fan System in Running[J]. Journal of Vibration and Shock, 2013, 32(10): 74-79