Wave motion analysis and modeling of membrane structures using the wavelet finite element method

Yang, Zhibo; Chen, Xuefeng; Xie, Yonghui; Zuo, Hao; Miao, Huihui

doi:10.1016/j.apm.2015.09.071

Cited by 35 publications

(7 citation statements)

References 39 publications

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“…In recent years, Lin et al developed a tribo‐dynamic model of the slipper bearing in an axial piston pump and applied the genetic algorithm approach to predict the lubrication behaviour of the slipper pair. Moreover, the TEHD problem is more complex in a slipper pair, and the interactive computation between TEHD deformation and HD pressure was analysed using the finite element method . For example, a thermal‐fluid‐structure coupling model was developed to predict the stress and deformation of the friction pair in an axial piston pump by considering thermal deformation .…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the TEHD problem is more complex in a slipper pair, and the interactive computation between TEHD deformation and HD pressure was analysed using the finite element method. 21,22 For example, a thermal-fluid-structure coupling model was developed to predict the stress and deformation of the friction pair in an axial piston pump by considering thermal deformation. 23 The researchers found that the fluid temperature due to the friction power loss of the friction pair at the high shaft rotational speed condition is a main factor for stress in the friction pair.…”

Section: Introductionmentioning

confidence: 99%

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Power loss characteristics analysis of slipper pair in axial piston pump considering thermoelastohydrodynamic deformation

Tang

Ren

Xiang

2019

Lubrication Science

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The power loss characteristics of slipper pair in an axial piston pump considering the thermoelastohydrodynamic deformation are investigated based on a transient power loss model. The simulation results indicate that the leakage power loss of the slipper pair increases with increasing the thermoelastohydrodynamic deformation. The viscous friction power loss decreases with an increase in the thermoelastohydrodynamic pressure. The viscous friction becomes sufficiently large under the influence of slipper surface roughness that it leads to an increase in viscous friction power loss. The pump displacement decreases with increasing the leakage rate and results in higher leakage power loss and higher friction power loss. To achieve minimum power loss in the slipper, an objective optimization study using Newton's method is applied to calculate structural parameters such as slipper inner diameter, slipper outer diameter, and orifice diameter. The proposed structural parameter optimization can be used as theoretical evidence for slipper pair design.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Power loss characteristics analysis of slipper pair in axial piston pump considering thermoelastohydrodynamic deformation

Tang

Ren

Xiang

2019

Lubrication Science

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“…In recent years, the use of Wavelet finite element method has been presented as an alternative to the traditional iterative approach to modelling Lamb wave propagation in metallic structures. Z. Yang et al [4] showed the use of B-spline Wavelet FEM approach for simulating pressure, shear and Rayleigh waves in an undamaged and slotted aluminium plate. Their findings showed a very good comparison between their B-Spline Wavelet approach and the traditional FEM approach in a time window of 300 microseconds.…”

Section: Introductionmentioning

confidence: 99%

Residual stress effects of a fatigue crack on guided lamb waves

Martinez

Pant

Yanishevsky

et al. 2017

Smart Mater. Struct.

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Structural health monitoring has focused on the use of computational models to capture the effect of crack-like discontinuities on the behaviour of acoustic-ultrasonic signals. However, few models have taken into account the effect of geometric complexity in combination with residual stresses generated during the fatigue crack growth process. In this study, a finite element analysis model of a C-channel type aeronautical structure is evaluated under a pitch-catch scenario. Three different finite element model configurations were considered in order to understand the effects that residual stresses of a fatigue crack emanating from a through-hole have on the guided Lamb wave propagation behaviour. The results demonstrate that numerical modelling is able to capture the change in amplitude and the effect of a phase shift on the guided Lamb wave behaviour due to the presence of the discontinuity and the stress field generated during the fatigue crack growth process.

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“…Theoretically, some changes always occur in the observed signals when damage exists. The aim of inspection is to correctly find out about these changes and then associate them with the physical properties of the damage, such as its location and size [6,7]. However, if the distance between different features is shorter than half the bandwidth of the incident pulse, the reflected echoes may overlap, meaning that the useful information is lost.…”

Section: Measurement Science and Technologymentioning

confidence: 99%

An adaptive sparse deconvolution method for distinguishing the overlapping echoes of ultrasonic guided waves for pipeline crack inspection

Chang

Zhao

et al. 2017

Meas. Sci. Technol.

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In guided wave pipeline inspection, echoes reflected from closely spaced reflectors generally overlap, meaning useful information is lost. To solve the overlapping problem, sparse deconvolution methods have been developed in the past decade. However, conventional sparse deconvolution methods have limitations in handling guided wave signals, because the input signal is directly used as the prototype of the convolution matrix, without considering the waveform change caused by the dispersion properties of the guided wave. In this paper, an adaptive sparse deconvolution (ASD) method is proposed to overcome these limitations. First, the Gaussian echo model is employed to adaptively estimate the column prototype of the convolution matrix instead of directly using the input signal as the prototype. Then, the convolution matrix is constructed upon the estimated results. Third, the split augmented Lagrangian shrinkage (SALSA) algorithm is introduced to solve the deconvolution problem with high computational efficiency. To verify the effectiveness of the proposed method, guided wave signals obtained from pipeline inspection are investigated numerically and experimentally. Compared to conventional sparse deconvolution methods, e.g. the l 1 -norm deconvolution method, the proposed method shows better performance in handling the echo overlap problem in the guided wave signal.

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Wave motion analysis and modeling of membrane structures using the wavelet finite element method

Cited by 35 publications

References 39 publications

Power loss characteristics analysis of slipper pair in axial piston pump considering thermoelastohydrodynamic deformation

Power loss characteristics analysis of slipper pair in axial piston pump considering thermoelastohydrodynamic deformation

Residual stress effects of a fatigue crack on guided lamb waves

An adaptive sparse deconvolution method for distinguishing the overlapping echoes of ultrasonic guided waves for pipeline crack inspection

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