| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Theoretical and Experimental Investigation of Flexural Vibration Transfer Properties of High-Pressure Periodic Pipe |
| Zhen-Dong Wei, Bao-Ren Li, Jing-Min Du**, Gang Yang |
School of Mechanical Science and Engineering, and the FESTO Pneumatic Center, Huazhong University of Science and Technology, Wuhan 430074
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| Cite this article: |
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Zhen-Dong Wei, Bao-Ren Li, Jing-Min Du et al 2016 Chin. Phys. Lett. 33 044303 |
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Abstract According to the theory of phononic crystals, the hydraulic pipeline is designed to be a periodic structure composed of steel pipes and hoses to suppress the vibration of the hydraulic system with band gaps. We present theoretical and experimental investigations into the flexural vibration transfer properties of a high-pressure periodic pipe with the force on the inner pipe wall by oil pressure taken into consideration. The results show that the vibration attenuation of periodic pipe decreases along with the elevation of working pressure for the hydraulic system, and the band gaps in low frequency ranges move towards high frequency ranges. The periodic pipe has good vibration attenuation performance in the frequency range below 1000 Hz and the vibration of the hydraulic system is effectively suppressed. All the results are validated by experiment. The experimental results show a good agreement with the numerical calculations, thus the flexural vibration transfer properties of the high-pressure periodic pipe can be precisely calculated by taking the fluid structure interaction between the pipe and oil into consideration. This study provides an effective way for the vibration control of the hydraulic system.
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Received: 01 December 2015
Published: 29 April 2016
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| PACS: |
43.40.+s
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(Structural acoustics and vibration)
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62.30.+d
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(Mechanical and elastic waves; vibrations)
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62.50.-p
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(High-pressure effects in solids and liquids)
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07.10.Fq
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(Vibration isolation)
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