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Multi-scale dynamics of mechanical s...

Sepehri, Ali.

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Multi-scale dynamics of mechanical systems with friction.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Multi-scale dynamics of mechanical systems with friction./
Author:	Sepehri, Ali.
Description:	438 p.
Notes:	Source: Dissertation Abstracts International, Volume: 71-11, Section: B, page: 7040.
Contained By:	Dissertation Abstracts International71-11B.
Subject:	Engineering, Mechanical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3426683
ISBN:	9781124287577

Multi-scale dynamics of mechanical systems with friction.
Sepehri, Ali.

Multi-scale dynamics of mechanical systems with friction. - 438 p.

Source: Dissertation Abstracts International, Volume: 71-11, Section: B, page: 7040.

Thesis (Ph.D.)--Southern Illinois University at Carbondale, 2010.

Contact between rough surfaces occurs in numerous engineering systems and in many instances influences the macro behavior of the system. In many instances, the interaction between rough surfaces, affect the macro behavior of the system. Effective treatment of systems containing rough surface contact requires multiscale modeling and analysis approach. It is the goal of this research to develop simple methods for treating contact of rough surfaces so as to facilitate multiscale analysis of systems containing rough surface contact and friction.

ISBN: 9781124287577Subjects--Topical Terms:

783786
Engineering, Mechanical.

Multi-scale dynamics of mechanical systems with friction.
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008 150210s2010 ||||||||||||||||| ||eng d
020 $a 9781124287577
035 $a (MiAaPQ)AAI3426683
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100 1 $a Sepehri, Ali. $3 2102782
245 1 0 $a Multi-scale dynamics of mechanical systems with friction.
300 $a 438 p.
500 $a Source: Dissertation Abstracts International, Volume: 71-11, Section: B, page: 7040.
500 $a Adviser: Kambiz Farhang.
502 $a Thesis (Ph.D.)--Southern Illinois University at Carbondale, 2010.
520 $a Contact between rough surfaces occurs in numerous engineering systems and in many instances influences the macro behavior of the system. In many instances, the interaction between rough surfaces, affect the macro behavior of the system. Effective treatment of systems containing rough surface contact requires multiscale modeling and analysis approach. It is the goal of this research to develop simple methods for treating contact of rough surfaces so as to facilitate multiscale analysis of systems containing rough surface contact and friction.
520 $a This dissertation considers a multi-scale approach that includes interaction at nano-scale, micron-scale and accounting for their cumulative effect as to what we normally perceive to be the influence of contact surfaces and friction. In linking each scale to a higher scale this study employs statistical means to obtain cumulative effect of smaller-scale features. A mixed interactive/optimization technique is used to derive, in approximate closed form, equations for the contact load and real area of contact dependence on approach and parameters of rough surfaces. The equations so derived relate the normal and tangential components of contact load to displacement and surface parameters for three types of contact.
520 $a The nature of contact interaction that include elastic, elastic-plastic, visco-elastic, and visco-elasto-adhesive behavior are considered and equations relating the normal and tangential contact load to approach and relative sliding are obtained in approximate closed form. The approximate equations provide a tool for efficient calculation of contact force components, especially in surface optimization efforts where repetitive calculation of contact force components may be needed. The approximate equations also facilitate a multi-scale dynamic analysis wherein the effect of contact interaction can be readily included in a mechanical system model. Several dynamical problems involving mechanical systems with friction contact are presented and nonlinear dynamic analyses are employed to link the micron-scale properties of surface to the macro-scale properties of the mechanical system. These lead to, perhaps, the first derivation of contact frequency and damping in rough surface contact.
590 $a School code: 0209.
650 4 $a Engineering, Mechanical. $3 783786
650 4 $a Engineering, Automotive. $3 1018477
650 4 $a Engineering, Industrial. $3 626639
690 $a 0548
690 $a 0540
690 $a 0546
710 2 $a Southern Illinois University at Carbondale. $b Engineering Science. $3 1265861
773 0 $t Dissertation Abstracts International $g 71-11B.
790 $a 0209
791 $a Ph.D.
792 $a 2010
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3426683