| 空调风扇叶片进口角及弦长变化对其固有频率的影响 |
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| 引用本文： | 魏潮,曹人靖. 空调风扇叶片进口角及弦长变化对其固有频率的影响[J]. 汕头大学学报(自然科学版), 2004, 19(1): 69-74 |
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| 作者姓名： | 魏潮 曹人靖 |
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| 作者单位： | 汕头大学科学院能源研究所,汕头,515063 |
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| 摘 要： | 用有限元方法对空调风扇叶片进口角、叶片弦长变化对其固有频率的影响规律进行了研究 .首先利用一个悬臂梁算例验算了软件有限元计算的误差情况 ,接着分析低阶条件下的空调风扇简化模型的合理性 ,最后在叶片进口角、叶片弦长变化等不同条件下 ,对简化模型进行固有频率计算 ,得到了叶片进口角、叶片弦长变化对空调风扇固有频率影响的近似规律
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| 关 键 词： | 空调风扇 叶片 固有频率 有限元分析 |
| 文章编号： | 1001-4217(2004)01-0069-06 |
| 修稿时间： | 2003-09-26 |
Effects of Blade Design on Frequency of Fan in Air Conditioner |
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| WEI Chao,CAO Ren-jing. Effects of Blade Design on Frequency of Fan in Air Conditioner[J]. Journal of Shantou University(Natural Science Edition), 2004, 19(1): 69-74 |
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| Authors: | WEI Chao CAO Ren-jing |
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| Abstract: | This paper presents effects of blade on frequency of fan in air conditioners using finite element analysis method when the angle of air-inlet and the chordal length of blade are changed.First an example of canti lever beam is used to check the correctness of values got by using a finite elem ent analysis software.Then the applicability of a simplified calculating model o f the fan in low order vibration condition is discussed.Finally,calculating mode l is used to analyze the effects of different angles of air-inlet and different chordal lengths of blade on frequency so that the approximative effect law abou t blade parameters bringing to the fan in air conditioner in frequency field is gotten. |
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| Keywords: | fan in air conditioner blade inherent frequency fi nite element analysis |
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