Results 61 to 70 of about 154,875 (200)

An interface element based on the partition of unity [PDF]

open access: yes, 2001
An alternative interface finite element is developed. By using the partition of unity property of finite element shape functions, discontinuous shape functions are added to the standard finite element basis.
Remmers, JJC, Simone, A, Wells, GN
core  

Cut Finite Element Methods for Linear Elasticity Problems

open access: yes, 2017
We formulate a cut finite element method for linear elasticity based on higher order elements on a fixed background mesh. Key to the method is a stabilization term which provides control of the jumps in the derivatives of the finite element functions ...
Hansbo, Peter   +2 more
core   +1 more source

RESEARCH ON DYNAMICS CHARACTERISTICS OF SPUR GEAR BASED ON DYNAMIC MSEH STIFFNESS

open access: yesJixie qiangdu
The rotational speed of gear system directly affects the dynamic characteristies of gear system, but this important factor was often ignored by many scholars in the caleulation of mesh stiffness.
DAI ZhanSheng, LIU GuiMian
doaj  

Nonlinear Analysis of Spur Gear Pair with Time-varying Mesh Stiffness

open access: yesMATEC Web of Conferences, 2014
This study presents nonlinear analysis of single degree of freedom spur gear pair with time-varying mesh stiffness. The backlash is approximated using nonlinear term. The periodic steady-state solutions of the nonlinear system are obtained by closed-form
Rao T. V. V. L. N.   +3 more
doaj   +1 more source

A multi-purpose method for analysis of spur gear tooth loading [PDF]

open access: yes
A large digitized approach was developed for the static and dynamic load analysis of spur gearing. An iterative procedure was used to calculate directly the "variable-variable" gear mesh stiffness as a function of transmitted load, gear tooth profile ...
August, R.   +3 more
core   +1 more source

斜齿圆柱齿轮啮合刚度波动的变化规律研究

open access: yesJixie chuandong, 2014
By using the finite element method,the mesh stiffness and its fluctuation value of helical gears with different parameters are calculated respectively,and the change law of mesh stiffness fluctuation is summarized.The results show that contact ratios are
丁云飞, 刘岚, 吴立言, 常乐浩
doaj  

Computational morphogenesis of free form shells: Filter methods to create alternative solutions [PDF]

open access: yes, 2009
p. 536-547Actual trends in numerical shape optimal design of structures deal with handling of very large dimensions of design space. The goal is to allowing as much design freedom as possible while considerably reducing the modelling effort.
BLETZINGER, Kai-Uwe   +3 more
core   +1 more source

车辆传动轴系动态激励及其响应的仿真研究

open access: yesJixie chuandong, 2005
Based on the dynamic contact finite element method,the process of the gears meshing is simulated.As a result,the time-varying mesh stiffness is obtained.Then,the multi-body dynamics model of a certain engine is developed;using this model the dynamic ...
李涛, 覃文洁, 王超
doaj  

Mesh refinement in finite element analysis by minimization of the stiffness matrix trace [PDF]

open access: yes
Most finite element packages provide means to generate meshes automatically. However, the user is usually confronted with the problem of not knowing whether the mesh generated is appropriate for the problem at hand.
Huston, Ronald L., Kittur, Madan G.
core   +1 more source

Modeling of Polymer Clay Nanocomposite for a Multiscale Approach

open access: yes, 2008
The mechanical property enhancement of polymer reinforced with nano-thin clay platelets (of high aspect ratio) is associated with a high polymer-filler interfacial area per unit volume.
Arai   +67 more
core   +1 more source

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