Article
Engineering, Multidisciplinary
Chaoqi Gao, Yiqiang Xiang, Yunshen Yang, Heng Lin
Summary: This paper proposes a new theoretical model for analyzing the dynamic response of the submerged floating tunnel (SFT) under moving load. The model considers the boundary conditions, cable stiffness, and joint flexural stiffness, and the modes and natural frequencies are solved using the transfer matrix method. The results reveal the influence of these factors on the displacement and bending moment distribution of the SFT.
APPLIED MATHEMATICAL MODELLING
(2022)
Article
Engineering, Marine
Sung-Ryol So, Hoyong Yun, Yongho Ri, O. Ryongsik, Yong-Il Yun
Summary: This study investigated the free vibration characteristics of laminated composite beams using the Haar wavelet discretization method, with generalized elastic boundary conditions. Numerical results were obtained and compared with previous works to validate the method's effectiveness.
JOURNAL OF OCEAN ENGINEERING AND SCIENCE
(2021)
Article
Mechanics
Hang Xu, Yan Qing Wang
Summary: This study proposes an efficient method for analyzing the free vibration of rotating beams under elastic boundary conditions. The method utilizes the differential transformation method and the artificial spring attachment technique to improve computational efficiency and accuracy.
INTERNATIONAL JOURNAL OF APPLIED MECHANICS
(2022)
Article
Engineering, Civil
Yeqing Jin, Xiangwen Luo, Hengxu Liu, Bingsen Qiu, Haiyang Chi
Summary: An accurate solution method for analyzing the free vibration of multi-span lattice sandwich beams under arbitrary boundary conditions is proposed. Linear displacement springs and rotational springs are introduced to simulate the boundary and support forces, and Fourier series are used to eliminate discontinuity during the solution process. The unified vibration equation is constructed based on the energy method, and the Rayleigh-Ritz method is used for solving the free vibration characteristics. The current method is suitable for analyzing the free vibration of multi-span lattice beams under arbitrary boundary conditions.
THIN-WALLED STRUCTURES
(2022)
Article
Engineering, Mechanical
Tian Xu, Murong Li, Zhen Wang, Yingda Hu, Shilun Du, Yong Lei
Summary: This paper proposes a novel inverse method to estimate the unknown elastic constants and boundary conditions of a three-dimensional hyperelastic material under locally observed boundary conditions with noise. The proposed method shows feasibility and accuracy in numerical and physical experiments.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Acoustics
Xiao-Ye Mao, Song Shu, Xin Fan, Hu Ding, Li-Qun Chen
Summary: An approximate method is proposed for the strong nonlinear and non-homogenous boundary value problem of a pipe conveying fluid, using modal correction and projection to treat the boundaries as generalized governing equations. The discussion on natural frequencies and harmonic convergence helps in judging the stability of the solution and the type of bifurcation, while revealing detailed information of the response. The proposed method shows advantages in dealing with strong boundaries compared to other existing methods.
JOURNAL OF SOUND AND VIBRATION
(2021)
Article
Acoustics
D. S. Yang, C. M. Wang, J. D. Yau
Summary: This paper introduces a new MINE method for dynamic analysis of bridges/beam structures under moving loads/vehicles. The method reduces the number of elements needed compared to conventional FEM, leading to increased accuracy and computational efficiency. The illustrative problems solved in this paper demonstrate the accuracy, versatility, and ease of handling of the MINE method for any vehicle model.
JOURNAL OF SOUND AND VIBRATION
(2021)
Article
Computer Science, Interdisciplinary Applications
Zuxian Wang, Chenghua Shi, Chenjie Gong, Chengyong Cao, Zhu Peng, Yingjie Sun
Summary: This study proposes a comprehensive Vlasov foundation-Timoshenko beam model with arbitrary elastic boundary conditions. The model is validated and shown to be applicable to various soil variations and boundary conditions. Furthermore, the model can be degenerated into other common models.
COMPUTERS AND GEOTECHNICS
(2022)
Article
Engineering, Multidisciplinary
Gwanghun Kim, Poknam Han, Kwangil An, Dongson Choe, Yonguk Ri, Hyonil Ri
Summary: This paper investigates the free vibration characteristics of functionally graded double-beam system under arbitrary boundary conditions using Timoshenko beam theory and Haar wavelet series. The proposed method demonstrates convergence and accuracy through comparison with previous literature and finite element method. New results, such as frequency characteristics under arbitrary boundary conditions, are provided for future reference.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2021)
Article
Computer Science, Interdisciplinary Applications
Heping Dong, Jun Lai, Peijun Li
Summary: The scattering of a plane wave by a rigid obstacle in a homogeneous and isotropic elastic medium in three dimensions is considered in this paper. Based on the Helmholtz decomposition, the elastic scattering problem is reduced to a coupled boundary value problem for the Helmholtz and Maxwell equations. A novel system of boundary integral equations is formulated, and a spectral boundary integral method is developed for solving the coupled boundary value problem. Numerical experiments are presented to demonstrate the superior performance of the proposed method.
JOURNAL OF COMPUTATIONAL PHYSICS
(2022)
Article
Engineering, Multidisciplinary
Xing Tan, Jincheng He, Chen Xi, Xi Deng, Xulong Xi, Weiting Chen, Huan He
Summary: This study proposes a method based on Green's function for the dynamic analysis of a rotor-bearing system with electromechanically coupled boundary conditions. The method applies Laplace transform and superposition principle, and its effectiveness is validated through comparison with the finite element method, showing highly accurate analytical solutions and significant damping performance of the piezoelectric damper.
APPLIED MATHEMATICAL MODELLING
(2021)
Article
Engineering, Civil
Zhang Yuntai, Jiang Lizhong, Zhou Wangbao, Liu Shaohui, Feng Yulin, Liu Xiang, Lai Zhipeng
Summary: This study investigates the dynamic response of an elastically connected multi-beam structure under a moving load with elastic boundary conditions. The difficulty in solving the motion equation is reduced using special transformation methods. The proposed method is validated on a high-speed railway with mixed boundary conditions and the influence of different beam numbers, material parameters, and load speed on the dynamic response is examined. Results suggest that the number of beams in the model should closely match the actual beam number for accurate representation of the structure's dynamic response.
EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION
(2022)
Article
Mathematics
Stephan Gahima, Pedro Diez, Marco Stefanati, Jose Felix Rodriguez Matas, Alberto Garcia-Gonzalez
Summary: This manuscript presents a novel formulation for a linear elastic model of a heterogeneous arterial section undergoing uniform pressure in a quasi-static regime. The novelties are twofold. First, an elastic bed support on the external boundary (elastic bed boundary condition) replaces the classical Dirichlet boundary condition for elastic solids to ensure a solvable problem. Secondly, an unfitted strategy based on the Immersed Boundary (IB) framework is devised to study different geometrical configurations corresponding to different patients. It provides results equivalent to the standard finite elements (FE) with dimensionality reduction.
Article
Engineering, Civil
Z. L. Wang, Z. X. Tan, L. Chen, D. S. Yang, H. Xu, K. Shi, Y. B. Yang
Summary: In this paper, the internal and external cancellation phenomena of damped beams under multi-moving loads are investigated. A simple expression for the free vibration of the damped beam is derived for the first time. Two cancellation conditions, internal and external, are identified based on the concept of local minimum. The effect of factors such as number and spacing of moving loads and damping levels on cancellation is investigated.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2023)
Article
Mechanics
Chein-Shan Liu
Summary: By using boundary shape functions and iterative algorithms to approximate the exact solution, the boundary value problem of nonlinear composite beams can be transformed into an initial value problem for a new variable, resulting in high-precision numerical solutions.
COMPOSITE STRUCTURES
(2021)
Article
Acoustics
Jiaxi Zhou, Kai Wang, Daolin Xu, Huajiang Ouyang, Yimei Fu
JOURNAL OF VIBRATION AND CONTROL
(2018)
Article
Engineering, Mechanical
Junbo Zhou, Jianhua Liu, Huajiang Ouyang, Zhenbing Cai, Jinfang Peng, Minhao Zhu
Article
Engineering, Aerospace
Qingjun Li, Bo Wang, Zichen Deng, Huajiang Ouyang, Yi Wei
Article
Mechanics
Rittirong Ariyatanapol, Y. P. Xiong, Huajiang Ouyang
Article
Engineering, Mechanical
W. J. Qian, Z. Q. Huang, H. Ouyang, G. X. Chen, H. J. Yang
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2019)
Article
Engineering, Mechanical
D. W. Wang, J. L. Mo, Z. Y. Zhu, H. Ouyang, M. H. Zhu, Z. R. Zhou
Article
Thermodynamics
C. R. Hua, Y. Zhao, Z. W. Lu, H. Ouyang
ADVANCES IN MECHANICAL ENGINEERING
(2018)
Article
Physics, Applied
Junbo Zhou, Jianhua Liu, Huajiang Ouyang, Zhenbing Cai, Jinfang Peng, Minhao Zhu
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2019)
Article
Physics, Applied
Kai Wang, Jiaxi Zhou, Daolin Xu, Huajiang Ouyang
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Article
Engineering, Multidisciplinary
Jing Ning, Wanli Cui, Chuanjie Chong, Huajiang Ouyang, Chunjun Chen, Bing Zhang
Article
Physics, Applied
Xuetong Liu, Jianhua Liu, Huajiang Ouyang, Zhenbing Cai, Jinfang Peng, Minhao Zhu
MODERN PHYSICS LETTERS B
(2018)
Article
Construction & Building Technology
Shancheng Cao, Huajiang Ouyang, Li Cheng
STRUCTURAL CONTROL & HEALTH MONITORING
(2019)
Article
Engineering, Mechanical
Yiqiang Fu, Huajiang Ouyang, R. Benjamin Davis
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2019)
Article
Engineering, Mechanical
Shancheng Cao, Huajiang Ouyang, Li Cheng
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2019)
Article
Engineering, Mechanical
Kai Wang, Jiaxi Zhou, Daolin Xu, Huajiang Ouyang
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2019)