Engineering Computations: Volume 40 Issue 1

Enhancing flow characteristic and system performance in micropump with heart valve mechanical behavior

Hsin-Yi Lai, Jing-Hao Kang

This study aims to solve the problems of low flow rate and low efficiency of micropumps in high-frequency applications. This micropump system was proposed to meet the requirements…

Finite element mesh refinement for in-plane and out-of-plane vibration of variable geometrical Timoshenko beams based on superconvergent vibration modes

Yongliang Wang

In this paper, a superconvergent patch recovery method is proposed for superconvergent solutions of modes in the finite element post-processing stage of variable geometrical…

Nonlinear dynamic analysis of wrinkled membrane structure

Xiang Liu, G.P. Cai

This paper studies the nonlinear dynamics of membrane structure considering wrinkling effect. The coupling between wrinkles and vibration is investigated elaborately, and new…

Research on the bifurcation approach for turbulent flows with rotation and curvature: effect of the base models

Kaiwen Pang, Xianbei Huang, Zhuqing Liu, Yaojun Li, Wei Yang, Jiaxing Lu

This study aims to research the prediction performance of the bifurcation approach with different base models in different kinds of turbulent flows with rotation and curvature.

Three-dimensional natural frequency investigation of bidirectional FG truncated thick hollow cone

Amir Najibi, Morteza Kianifar, Payman Ghazifard

The authors examined the numerical natural frequency analysis of a 2D functionally graded (FG) truncated thick hollow cone using 3D elasticity theory.

One-stage extraction four-point algorithm for rainflow cycle counting in fatigue life estimation

Gangting Huang, Yunfei Li, Yajun Luo, Shilin Xie, Yahong Zhang

In order to improve the computation efficiency of the four-point rainflow algorithm, a one-stage extraction four-point rainflow algorithm is proposed based on a novel data…

Stress-dependent unstable dynamic propagation of multiple hydraulic fractures: a review of stress shadow effects and continuum-discontinuum methods

Yongliang Wang, Nana Liu

The unstable dynamic propagation of multistage hydrofracturing fractures leads to uneven development of the fracture network and research on the mechanism controlling this…

Adaptive mesh refinement for finite element analysis of elastic buckling disturbance of circularly curved beams due to multiple micro-cracks damage

Yongliang Wang

This study aimed to overcome the challenging issues involved in providing high-precision eigensolutions. The accurate prediction of the buckling load bearing capacity under…

Mesh refinement of finite element method for free vibration analysis of variable geometrical rotating cylindrical shells

Yongliang Wang

This study aims to provide a reliable and effective algorithm that is suitable for addressing the problems of continuous orders of frequencies and modes under different boundary…

Non-linear dynamics and stability of rolling bearing–axle coupling system of a railway freight wagon with the change of axle rotating speed

Yang Juping, Junguo Wang, Zhao Yongxiang

The purpose of this paper is to investigate the non-linear characteristics and stability of the rolling bearing–axle coupling system under the excitation of the axle/wheel speed…

An improved local error estimate in adaptive finite element analysis based on element energy projection technique

Haohan Sun, Si Yuan

An improved adaptive finite element analysis based on local error estimate is proposed via the element energy projection (EEP) technique. This paper aims to discuss the…

Large displacement analysis of two-layer beam-columns taking into account slip and uplift

Thaileng Oeng, Pisey Keo, Samy Guezouli, Mohammed Hjiaj

This article presents a geometrically non-linear finite element formulation for the analysis of planar two-layer beam-columns taking into account the inter-layer slip and uplift.

An algorithm for determining the inner and outer loops of arbitrary parametric surfaces

Chuanming Ju, J. Zhang, Yong Zhang, Xianfeng Du, Zheng Yuan, Tangying Liu

The purpose of this paper is to present an algorithm for determining the inner and outer loops of arbitrary parametric surfaces.