Vibratory Stress Relief of Central Air-Conditioning Evaporator

Xue Wu Dong; Jian Hui Han; Dai Ren; Kai Mu; Dong Peng Liu; Yao Li Du

doi:10.4028/www.scientific.net/AMM.397-400.393

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 397-400Vibratory Stress Relief of Central...

Vibratory Stress Relief of Central Air-Conditioning Evaporator

Abstract:

Tubular evaporator is one of the key components of central air-conditioning. It is necessary to do aging treatment to relief residual stress and prevent leak phenomenon from structural deformation. Vibratory stress relief (VSR) can relieve residual stress in metal component. It has high efficiency with energy-saving, no exhausting and low cost. However vibration parameter impacts effect considerably. The author determines vibration parameter based on vibration mode and stress distribution. The relative parameters cover excitation frequency and point, support point etc. We measured residual stress both for after welding and VSR treatment lasting 30 minutes of the component. Result shows that residual stress is reduced by 61%. Residual stress between different points is decreased by 85.56% after VSR. Therefore, VSR should be carried out by vibration parameter based on vibration mode and stress distribution. At last we can say that our innovation is adapt to determine the VSR technical parameter for all metal components.

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Periodical:

Applied Mechanics and Materials (Volumes 397-400)

Pages:

393-396

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.397-400.393

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Online since:

September 2013

Authors:

Xue Wu Dong, Jian Hui Han, Dai Ren, Kai Mu, Dong Peng Liu, Yao Li Du

Keywords:

Energy Saving, Evaporator, Vibration Mode Analysis, Vibratory Stress Relief

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References

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