Comparison of reduction methods for deformable multibody dynamics

Parviz E Nikravesh, Yi Shih Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Several well-known reduction methods for deformable multibody dynamics have been reviewed and compared. All of these methods have been borrowed from structural analysis. A recently proposed reduction method that is derived from the equations of motion, based on a mode condensation process, is also reviewed and compared against the other methods. The general conclusion of this investigation is that the standard condensation methods that are based only on fixed/non-moving boundary conditions should not be used in multibody dynamics. However, when the standard normal modes are accompanied by other properly selected modes, accurate results can be achieved. Similar results can also be obtained by the mode condensation method. The paper pays specific attention to two methods known as the Craig-Bampton reduction and the mode condensation.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005
Pages1303-1310
Number of pages8
Volume6 B
StatePublished - 2005
EventDETC2005: ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - Long Beach, CA, United States
Duration: Sep 24 2005Sep 28 2005

Other

OtherDETC2005: ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
CountryUnited States
CityLong Beach, CA
Period9/24/059/28/05

Fingerprint

Condensation
Structural analysis
Equations of motion
Boundary conditions

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Nikravesh, P. E., & Lin, Y. S. (2005). Comparison of reduction methods for deformable multibody dynamics. In Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005 (Vol. 6 B, pp. 1303-1310)

Comparison of reduction methods for deformable multibody dynamics. / Nikravesh, Parviz E; Lin, Yi Shih.

Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005. Vol. 6 B 2005. p. 1303-1310.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nikravesh, PE & Lin, YS 2005, Comparison of reduction methods for deformable multibody dynamics. in Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005. vol. 6 B, pp. 1303-1310, DETC2005: ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Long Beach, CA, United States, 9/24/05.
Nikravesh PE, Lin YS. Comparison of reduction methods for deformable multibody dynamics. In Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005. Vol. 6 B. 2005. p. 1303-1310
Nikravesh, Parviz E ; Lin, Yi Shih. / Comparison of reduction methods for deformable multibody dynamics. Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005. Vol. 6 B 2005. pp. 1303-1310
@inproceedings{eb063ce029cf494e9518f22379318cd8,
title = "Comparison of reduction methods for deformable multibody dynamics",
abstract = "Several well-known reduction methods for deformable multibody dynamics have been reviewed and compared. All of these methods have been borrowed from structural analysis. A recently proposed reduction method that is derived from the equations of motion, based on a mode condensation process, is also reviewed and compared against the other methods. The general conclusion of this investigation is that the standard condensation methods that are based only on fixed/non-moving boundary conditions should not be used in multibody dynamics. However, when the standard normal modes are accompanied by other properly selected modes, accurate results can be achieved. Similar results can also be obtained by the mode condensation method. The paper pays specific attention to two methods known as the Craig-Bampton reduction and the mode condensation.",
author = "Nikravesh, {Parviz E} and Lin, {Yi Shih}",
year = "2005",
language = "English (US)",
isbn = "0791847438",
volume = "6 B",
pages = "1303--1310",
booktitle = "Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005",

}

TY - GEN

T1 - Comparison of reduction methods for deformable multibody dynamics

AU - Nikravesh, Parviz E

AU - Lin, Yi Shih

PY - 2005

Y1 - 2005

N2 - Several well-known reduction methods for deformable multibody dynamics have been reviewed and compared. All of these methods have been borrowed from structural analysis. A recently proposed reduction method that is derived from the equations of motion, based on a mode condensation process, is also reviewed and compared against the other methods. The general conclusion of this investigation is that the standard condensation methods that are based only on fixed/non-moving boundary conditions should not be used in multibody dynamics. However, when the standard normal modes are accompanied by other properly selected modes, accurate results can be achieved. Similar results can also be obtained by the mode condensation method. The paper pays specific attention to two methods known as the Craig-Bampton reduction and the mode condensation.

AB - Several well-known reduction methods for deformable multibody dynamics have been reviewed and compared. All of these methods have been borrowed from structural analysis. A recently proposed reduction method that is derived from the equations of motion, based on a mode condensation process, is also reviewed and compared against the other methods. The general conclusion of this investigation is that the standard condensation methods that are based only on fixed/non-moving boundary conditions should not be used in multibody dynamics. However, when the standard normal modes are accompanied by other properly selected modes, accurate results can be achieved. Similar results can also be obtained by the mode condensation method. The paper pays specific attention to two methods known as the Craig-Bampton reduction and the mode condensation.

UR - http://www.scopus.com/inward/record.url?scp=33244476508&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33244476508&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33244476508

SN - 0791847438

SN - 9780791847435

VL - 6 B

SP - 1303

EP - 1310

BT - Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005

ER -