A model reduction approach for the vibration analysis of hydraulic pipeline system in aircraft

Gao, Peixin; Zhai, Jingyu; Yan, Yangyang; Han, Qingkai; Qu, Fuzheng; Chen, Xihong

doi:10.1016/j.ast.2015.12.002

Cited by 76 publications

(26 citation statements)

References 28 publications

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“…Euler-Bernoulli beam [6], [7], [26] or Timoshenko beam [8], [9] model is frequently used to calculate the pipeline system whose inner diameter is much smaller than the pipe length. When the ratio between the length and the diameter of the pipeline is greater than 5 times, Euler-Bernoulli beam can be adopted for dynamic modeling [49].…”

Section: Dynamic Model and Parameter Sensitivity Analysis Of Thementioning

confidence: 99%

“…Besides, the pipe [10] and the shell element [11], [12] were also used in the literatures to develop the corresponding finite-element model. For instance, Gao et al established the reduced hydraulic pipeline model using the Euler-Bernoulli beam [6], [7] and Timoshenko beam [8], in which the clamp was simplified as springs. Based on incompressible potential flow, Firouz [12] established a fluidstructure interaction model for stability analysis using the shell model.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Uncertain Frequency Responses of Clamp-Pipeline Systems Using an Interval-Based Method

Guo

Zhang

et al. 2020

IEEE Access

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Section: Dynamic Model and Parameter Sensitivity Analysis Of Thementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Uncertain Frequency Responses of Clamp-Pipeline Systems Using an Interval-Based Method

Guo

Zhang

et al. 2020

IEEE Access

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“…Based on the finite element method which is abbreviated as FEM, Sreejith et al [19] investigated the vibration behavior of nuclear pipeline with a sudden valve closure. Gao et al [20] proposed a reduced order modeling to analyze the vibration characteristics of aero pipeline system. Kochupillai et al [21] proposed an improved FEM method to investigate the fluid transients with a sudden valve closure.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Vibration Analysis of Hydraulic Pipeline System under Multiexcitations

Gao

Zhang

et al. 2020

Shock and Vibration

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Pipeline systems in aircraft are subjected to both hydraulic pump pressure fluctuations and base excitation from the engine. This can cause fatigue failures due to excessive vibrations. Therefore, it is essential to investigate the vibration behavior of the pipeline system under multiexcitations. In this paper, experiments have been conducted to describe the hydraulic pipeline systems, in which fluid pressure excitation in pipeline is driven by the throttle valve, and the base excitation is produced by the shaker driven by a vibration controller. An improved model which includes fluid motion and base excitation is proposed. A numerical MOC-FEM approach which combined the coupling method of characteristics (MOC) and finite element method (FEM) is proposed to solve the equations. The results show that the current MOC-FEM method could predict the vibration characteristics of the pipeline with sufficient accuracy. Moreover, the pipeline under multiexcitations could produce an interesting beat phenomenon, and this dangerous phenomenon is investigated for its consequences from engineering point of view.

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“…The shell model is more reasonable when the pipeline length is small relative to the diameter of the cross-section. Pei-xin Gao et al [7][8][9] proposed a model reduction method for complex aeronautical hydraulic pipeline systems and studied the vibration response of hydraulic pipeline systems under multi-source excitations. Zhai Hong-bo and Xiaoping Ouyang et al 10,11 analysed the vibration response and modal characteristics of hydraulic pipelines.…”

Section: Introductionmentioning

confidence: 99%

Model-driven fault diagnosis of slant cracks in aero-hydraulic straight pipes

Dou

Yang

et al. 2020

Advances in Mechanical Engineering

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A model-driven fault diagnosis method for slant cracks in aero-hydraulic straight pipes is presented in this paper. First, fracture mechanics theory and the principle of strain energy release are used to derive an expression for the local flexibility coefficient of straight pipes with slant cracks. The inverse method of total flexibility is used to calculate the stiffness matrix of straight pipe elements with slant cracks. Second, the Euler-Bernoulli beam model theory is used in conjunction with the finite element method to construct a dynamic model of the cracked pipe. Finally, a contour map method is used to diagnose the slant crack fault and quantitatively determine the crack position and depth. Experimental results show that the proposed method can accurately and effectively identify a slant crack fault in aero-hydraulic pipelines.

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A model reduction approach for the vibration analysis of hydraulic pipeline system in aircraft

Cited by 76 publications

References 28 publications

Uncertain Frequency Responses of Clamp-Pipeline Systems Using an Interval-Based Method

Uncertain Frequency Responses of Clamp-Pipeline Systems Using an Interval-Based Method

Experimental and Numerical Vibration Analysis of Hydraulic Pipeline System under Multiexcitations

Model-driven fault diagnosis of slant cracks in aero-hydraulic straight pipes

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