東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Analysis of impact with friction for...

Barbulescu, Horatiu I.

Linked to FindBook

Google Book

Amazon

博客來

Analysis of impact with friction for bars.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Analysis of impact with friction for bars./
Author:	Barbulescu, Horatiu I.
Description:	184 p.
Notes:	Source: Dissertation Abstracts International, Volume: 65-02, Section: B, page: 0983.
Contained By:	Dissertation Abstracts International65-02B.
Subject:	Engineering, Mechanical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3124253

Analysis of impact with friction for bars.
Barbulescu, Horatiu I.

Analysis of impact with friction for bars. - 184 p.

Source: Dissertation Abstracts International, Volume: 65-02, Section: B, page: 0983.

Thesis (Ph.D.)--Auburn University, 2004.

The study of impact is focused on the reaction forces that develop during collision and the dynamic response of structures to these reaction forces. In the literature, most of the cases studied involved simple cases of impact, such as the planar impact of a rigid bar with a surface and planar collision of slender bars with different geometric and physical properties.Subjects--Topical Terms:

783786
Engineering, Mechanical.

Analysis of impact with friction for bars.
LDR:03240nmm 2200289 4500 001 1864337
005 20041217072320.5
008 130614s2004 eng d
035 $a (UnM)AAI3124253
035 $a AAI3124253
040 $a UnM $c UnM
100 1 $a Barbulescu, Horatiu I. $3 1951835
245 1 0 $a Analysis of impact with friction for bars.
300 $a 184 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-02, Section: B, page: 0983.
500 $a Director: Dan B. Marghitu.
502 $a Thesis (Ph.D.)--Auburn University, 2004.
520 $a The study of impact is focused on the reaction forces that develop during collision and the dynamic response of structures to these reaction forces. In the literature, most of the cases studied involved simple cases of impact, such as the planar impact of a rigid bar with a surface and planar collision of slender bars with different geometric and physical properties.
520 $a In the beginning of this work, the three-dimensional impact with friction of a rigid bar is studied. The equations of motion are calculated using Kane method. For simplification, the relationship between the reference frames is deduced at the moment of impact, when the reference frames have a coincident origin. The generalized momentum and impulse equations are considered to find the equations of motion of the rigid bar. For the case of impact without slipping, it is assumed that the tangential component of the velocity of separation is null. In the case with slipping, the tangential impulse (at the plane of impact) is computed. The assumptions permit the prediction of the direction of post-impact velocity of the rigid bar and the direction of the impulse at impact. A simulation of the impact of the rigid bar with a rigid surface is developed using Mathematica and the impulse at impact and the kinetic energy of the bar after impact are studied for different incident angles of the bar. The incident angle is varied from 0° to 45°. The numerical results show a dependence of the vertical impulse at impact and the kinetic energy loss with the incident angle of the bar.
520 $a Also, in this work, the study of frictional impact is extended to flexible bars. The study of the impact of flexible bars introduces the elastic coordinates and thus the system that must be solved includes more equations. For simplification, most of the computations are made in the mobile reference frame attached to the beam and then transferred in the fixed reference frame. Considering that the generalized velocities before impact are known, the impulse at impact and the kinetic energy loss at impact with no slipping and with slipping are found. For different incident angles of the flexible bar, a simulation of the impact is developed. The numerical results show again a dependence of the vertical impulse at impact and the kinetic energy loss with the incident angle of the flexible bar. (Abstract shortened by UMI.)
590 $a School code: 0012.
650 4 $a Engineering, Mechanical. $3 783786
650 4 $a Applied Mechanics. $3 1018410
690 $a 0548
690 $a 0346
710 2 0 $a Auburn University. $3 1020457
773 0 $t Dissertation Abstracts International $g 65-02B.
790 1 0 $a Marghitu, Dan B., $e advisor
790 $a 0012
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3124253