Results 11 to 20 of about 113 (105)

Dimensionless numerical analysis method for flexible body with large deformation, displacement and time-varying length

open access: yesNihon Kikai Gakkai ronbunshu, 2021
A tethered system, which is a multibody system in which multiple rigid bodies are connected via a flexible tether, is currently used for space and deep-sea exploration.
Riko OGAWARA, Yoshiaki TERUMICHI
doaj   +1 more source

Nominal geometry and force measures for solids and fluids

open access: yesInternational Journal of Mechanical System Dynamics, Volume 2, Issue 3, Page 249-252, September 2022., 2022
Abstract Understanding solid‐ and fluid‐inertia forces and their coupling with the gravity potential in complex motion scenarios is necessary for evaluating system stability and identifying root causes of system failure and accidents. Because solids and fluids have an infinite number of degrees of freedom and distributed inertia and elasticity, having ...
Ahmed A. Shabana
wiley   +1 more source

A novel director-based Bernoulli–Euler beam finite element in absolute nodal coordinate formulation free of geometric singularities [PDF]

open access: yesMechanical Sciences, 2013
A three-dimensional nonlinear finite element for thin beams is proposed within the absolute nodal coordinate formulation (ANCF). The deformation of the element is described by means of displacement vector, axial slope and axial rotation parameter per ...
P. G. Gruber   +3 more
doaj   +1 more source

Multibody system transfer matrix method: The past, the present, and the future

open access: yesInternational Journal of Mechanical System Dynamics, Volume 2, Issue 1, Page 3-26, March 2022., 2022
Abstract The multibody system transfer matrix method (MSTMM), a novel dynamics approach developed during the past three decades, has several advantages compared to conventional dynamics methods. Some of these advantages include avoiding global dynamics equations with a system inertia matrix, utilizing low‐order matrices independent of system degree of ...
Xiaoting Rui   +5 more
wiley   +1 more source

Development of steady arm damper for electrified railway overhead contact line with double pantographs based on numerical and experimental analysis

open access: yesIET Electrical Systems in Transportation, Volume 11, Issue 3, Page 269-277, September 2021., 2021
Abstract To improve the carrying capacity, double pantographs are normally used to collect the electric current from the catenary. The mechanical wave excited by the leading pantograph affects the contact of the trailing pantograph and the contact wire, which usually deteriorates the current collection quality.
Wenping Chu   +3 more
wiley   +1 more source

Effects of Orbital Perturbations on Deployment Dynamics of Tethered Satellite System Using Variable-Length Element

open access: yesIEEE Access, 2021
Orbital perturbations caused by the space environment will induce deviations compared with the prescribed motion trajectory or dynamic performance of the tethered satellite system (TSS).
Zhengfeng Bai, Xin Jiang
doaj   +1 more source

Stable Inversion for Flexible Multibody Systems Using the ANCF

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 20, Issue 1, January 2021., 2021
Abstract Flexible robots are often non‐minimum phase systems. Thus, their inverse model must be computed by stable inversion. Here, a simplification to the stable inversion process is proposed, which enables its application to complex underactuated multibody systems.
Svenja Drücker, Robert Seifried
wiley   +1 more source

Dimensionless approach for transient behaviour of flexible body with time-varying length

open access: yesNihon Kikai Gakkai ronbunshu, 2023
In this study, transient analysis of flexible body motion with time-varying length is conducted using dimensionless finite element model (FEM). First, the equation of motion for a flexible body with large deformation, displacement and time-varying length
Riko OGAWARA, Yoshiaki TERUMICHI
doaj   +1 more source

A Comparative Study on the Wind Deflection of Railway Overhead Contact Line Based on Empirical Formula and Finite Element Approach

open access: yesShock and Vibration, Volume 2021, Issue 1, 2021., 2021
The assessment of wind deflection of the railway overhead contact line (OCL) is of great importance to ensure the safe and reliable operation of the electrified railway. This paper performs a comparative study of the railway OCL wind deflection based on the traditional empirical formula and finite element method (FEM).
Wenping Chu   +3 more
wiley   +1 more source

Formulation of the ANCF shear deformable beam element based on the elastic line approach (An efficient calculation strategy with the global and element coordinate systems)

open access: yesNihon Kikai Gakkai ronbunshu, 2019
The absolute nodal coordinate formulation (ANCF) is one of effective ways for describing the large rotation and deformation in multibody system analysis.
Kensuke HARA, Takashi KAWAIDA
doaj   +1 more source

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