| 蒋邹， 戴隆翔， 侯凯泽， 罗良辰， 李彬.空调管路系统动态特性研究[J].轻工机械,2020,38(2):95-98 |
| 空调管路系统动态特性研究 |
| Research on Dynamic Characteristics of Air Conditioning Piping System |
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| DOI：10.3969/j.issn.1005 2895.2020.02.017 |
| 中文关键词: 空调管路 模态 固有频率 有限元分析 |
| 英文关键词:air conditioner pipeline modal natural frequency FEA（finite element analysis） |
| 基金项目: |
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| 摘要点击次数: 709 |
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| 中文摘要: |
| 针对样机设计、打样阶段的空调管路出现振动、应变超标需反复整改问题，课题组通过对管路进行有限元模态仿真计算出其振型与固有频率；再进行模态测试，将仿真结果与测试值做对比，二者误差较小；通过对管路进行应力及振动测试分析，发现应力、振动的峰值点所对应的频率出现在管路固有频率附近，为共振引起。研究结果表明：在设计阶段通过有限元分析可计算出管路的模态与振型;为管路优化设计提供依据,同时节省了打样与实验成本。 |
| 英文摘要: |
| In order to solve the problem that the air conditioner pipeline should be repeatedly rectified due to vibration and excessive strain during the prototype design and proofing stage, the modal and natural frequencies of the pipeline were calculated by finite element modal simulation. The simulation results were compared with the test values by modal test, it was found that the error was small. Through the stress and vibration testing analysis of the pipeline, it was found that the frequency corresponding to the peak point of stress and vibration appeared near the natural frequency of the pipeline, which was caused by resonance. The results show that the modal and vibration modes of the pipeline can be calculated by finite element analysis in the design stage, which can not only provide a basis for the optimal pipeline design，but also save the proofing and experiment costs. |
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