نتایج جستجو برای: elastic deformation

تعداد نتایج: 135501  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1371

the effect of the presence of perforations on he stresses of a plate is a problem which is of great interest in structural design and in the mathemattical theory of elasticity. among the many hole patterns that are likely to require consideration is the ring of equally spaced circular holes. the present worke investigates stress & strain analysis of a thin isotropic circular plate containing a ...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
روح اله عزیزی تفتی حسن مسلمی نائینی مهدی سلمانی تهرانی محمدمهدی کسایی

determination of the deformation length is one of the first steps in roll forming design. roll forming industries are very interested in explicit simple relationsfor prediction the deformation length without using trail-and-error methods at workshop or time consuming finite element simulations. in this paper, elastic properties and work-hardening behaviour of the strip are considered in additio...

Journal: :journal of modern processes in manufacturing and production 2013
mohammad heydari vini

cold rolling process of a major transformation in the form of sheet metal and a wide range of steel products are produced in this way. elastic deformation during cold rolling working rollers and the inevitable increase in the rolling force. in this study, the effect of elastic deformation during cold rolling mill rollers working on the reciprocating back and forth in tandem with the presence of...

Journal: :international journal of advanced design and manufacturing technology 0
habib esfandiar moharam habibnejad korayem mohammad haghpanahi

in present paper, a point to point optimal path is planned for a mobile manipulator with flexible links and joints. for this purpose, a perfect dynamic modeling is performed for mobile manipulators considering large deformation in links, shear effects, elastic joints, effect of gravitation, and non-holonomic constraints. to study large deformation of links, non-linear relation of displacement-s...

Journal: :iranian journal of materials forming 2015
a. r. setoodeh a. azizi

in this paper, a closed form solution for bending and free vibration analyses of simply supported rectangular laminated composite plates is presented. the static and free vibration behavior of symmetric and antisymmetric laminates is investigated using a refined first-order shear deformation theory. the winkler–pasternak two-parameter model is employed to express the interaction between the lam...

Journal: :CoRR 2017
Utako Yamamoto Megumi Nakao Masayuki Ohzeki Tetsuya Matsuda

Deformation estimation of elastic object assuming an internal organ is important for the computer navigation of surgery. The aim of this study is to estimate the deformation of an entire three-dimensional elastic object using displacement information of very few observation points. A learning approach with a neural network was introduced to estimate the entire deformation of an object. We appli...

2014
Shan Wang Lishan Cui Shijie Hao Daqiang Jiang Yinong Liu Zhenyang Liu Shengcheng Mao Xiaodong Han Yang Ren

This study investigated the elastic deformation behaviour of Nb nanowires embedded in a NiTi matrix. The Nb nanowires exhibited an ultra-large elastic deformation, which is found to be dictated by the martensitic transformation of the NiTi matrix, thus exhibiting unique characteristics of locality and rapidity. These are in clear contrast to our conventional observation of elastic deformations ...

2016
Li Jinfeng

Static stiffness is an important indicator of the performance of a rolling guide, having direct influence on the stiffness and precision of computer numerically controlled (CNC) machine tools. After preloading the rolling guide, an outward elastic deformation is generated at the carriage skirt, which leads to a decrease in the static stiffness of the rolling guide. Therefore, there would be rel...

2015
Chao Liu Fan-Chun Li

Dynamic pressure oil film bearing is an important mechanical component of the ship. With the development of large-sized ships, their dynamic pressure oil films often run at high speed and under heavy load generating high oil film pressure. In addition, due to the increased use of thin walled bearing shell with materials of low elastic modulus, the elastic deformation of the bearing shell which ...

2014
W. J. Yao S. P. Chen

Original scientific paper In this paper, based on the overlapping deformation mode of load transfer law of uplift belled pile, and the theory of elastic mechanics, the elastic-plastic analytical solutions of uplift belled pile were derived, and the nonlinear elastic-plastic deformation analysis method was established, which made the deformation analysis theory of uplift belled pile more reasona...

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