Full Aeroelastic Model Design and Modal Parameter Identification of MAN Type Dry Gas Tank

LIU Xinpeng; LI Zhengliang; CHEN Junfan; YAN Zhitao

doi:10.3969/j.issn.0258-2724.2016.06.019

Volume 29 Issue 6

Nov. 2016

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Journal of Southwest Jiaotong University > 2016 > 29(6): 1183-1189.

LIN Feng. Optimal Intermodal Transport Path Planning Based on Martins Algorithm[J]. Journal of Southwest Jiaotong University, 2015, 28(3): 543-549. doi: 10.3969/j.issn.0258-2724.2015.03.025

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LIU Xinpeng, LI Zhengliang, CHEN Junfan, YAN Zhitao. Full Aeroelastic Model Design and Modal Parameter Identification of MAN Type Dry Gas Tank[J]. Journal of Southwest Jiaotong University, 2016, 29(6): 1183-1189. doi: 10.3969/j.issn.0258-2724.2016.06.019

LIN Feng. Optimal Intermodal Transport Path Planning Based on Martins Algorithm[J]. Journal of Southwest Jiaotong University, 2015, 28(3): 543-549. doi: 10.3969/j.issn.0258-2724.2015.03.025

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Full Aeroelastic Model Design and Modal Parameter Identification of MAN Type Dry Gas Tank

doi: 10.3969/j.issn.0258-2724.2016.06.019

Received Date: 14 Oct 2015
Publish Date: 25 Dec 2016

Abstract

Abstract

In order to design and produce an aero-elastic model that satisfies the dynamic characteristics of MAN type dry gas tanks and the similarity criterion of fluid dynamics, main contributing modes of the wind-induced vibration of the gas tank are identified using the mode energy participation factors of background response and the resonant response. Then, influencing parameters of the full aero-elastic model design are analyzed. The influence of mass dissimilarity on the wind-induced response of the full aero-elastic model is discussed, and a correction method is proposed. In addition, the manufacture technique of the full aero-elastic model for the Man type dry gas tank is expounded, and modal parameters of the full aero-elastic model for the gas tank are identified by a modal test. The results show that the first ten steps of mode parameters of the MAN type dry gas tank are the dominant contributing modes of wind-induced response; the internal pressure has less than 5% effect on the structural stiffness; it is only necessary to simulate a similar Cauchy number during the model design process; the difference between the corrected wind-induced response influenced by mass dissimilarity and the wind-induced response of the primary structure is less than 3%; and, the measured amplitude-frequency and vibration mode characteristics of the full aero-elastic model meet the design requirements.
- dynamic characteristics,
- full aeroelastic model,
- mode energy participation factor,
- modal parameter identification,
- mass dissimilarity

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References

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Full Aeroelastic Model Design and Modal Parameter Identification of MAN Type Dry Gas Tank

doi: 10.3969/j.issn.0258-2724.2016.06.019