Load assessment and analysis of impacts in multibody systems

被引：4

作者：

Gonzalez, Francisco ^{[1
]}

Kovecses, Jozsef ^{[2
,3
]}

Font-Llagunes, Josep M. ^{[4
,5
]}

机构：

[1] Univ A Coruna, Lab Ingn Mecan, Mendizabal S-N, Ferrol 15403, Spain

[2] McGill Univ, Dept Mech Engn, 817 Sherbrooke St West, Montreal, PQ H3A 0C3, Canada

[3] McGill Univ, Ctr Intelligent Machines, 817 Sherbrooke St West, Montreal, PQ H3A 0C3, Canada

[4] Univ Politecn Cataluna, Dept Mech Engn, Diagonal 647, E-08028 Barcelona, Spain

[5] Univ Politecn Cataluna, Biomed Engn Res Ctr CREB, Diagonal 647, E-08028 Barcelona, Spain

来源：

MULTIBODY SYSTEM DYNAMICS | 2016年 / 38卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Multibody impact; Effective kinetic energy; Impact intensity; MECHANICAL SYSTEMS; CONTACT; FRICTION; MODELS; FORCE;

D O I：

10.1007/s11044-015-9485-4

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The evaluation of contact forces during an impact requires the use of continuous force-based methods. An accurate prediction of the impact force demands the identification of the contact parameters on a case-by-case basis. In this paper, the preimpact effective kinetic energy is put forward as an indicator of the intensity of the impact force along the contact normal direction. This represents a part of the total kinetic energy of the system that is associated with the subspace of constrained motion defined by the impact constraints at the moment of contact onset. Its value depends only on the mechanical parameters and the configuration of the system. We illustrate in this paper that this indicator can be used to characterize the impact force intensity. The suitability of this indicator is confirmed by numerical simulations and experiments.

引用

页码：1 / 19

页数：19

共 20 条

[1] Acary V, 2008, LECT NOTES APPL COMP, V35, P1, DOI 10.1007/978-3-540-75392-6
[2] Combining vibrational linear-by-part dynamics and kinetic-based decoupling of the dynamics for multiple elastoplastic smooth impacts
Barjau, Ana
Batlle, Joaquim A.
Font-Llagunes, Josep M.
[J]. MULTIBODY SYSTEM DYNAMICS, 2015, 35 (03) : 233 - 256
[3] Combining vibrational linear-by-part dynamics and kinetic-based decoupling of the dynamics for multiple smooth impacts with redundancy
Barjau, Ana
Batlle, Joaquim A.
Font-Llagunes, Josep M.
[J]. MULTIBODY SYSTEM DYNAMICS, 2014, 31 (04) : 497 - 517
[4] Dealing with multiple contacts in a human-in-the-loop application
Dopico, Daniel
Luaces, Alberto
Gonzalez, Manuel
Cuadrado, Javier
[J]. MULTIBODY SYSTEM DYNAMICS, 2011, 25 (02) : 167 - 183
[5] Dynamic analysis of impact in swing-through crutch gait using impulsive and continuous contact models
Font-Llagunes, Josep M.
Barjau, Ana
Pamies-Vila, Rosa
Koevecses, Jozsef
[J]. MULTIBODY SYSTEM DYNAMICS, 2012, 28 (03) : 257 - 282
[6] Dynamics and energetics of a class of bipedal walking systems
Font-Llagunes, Josep M.
Koevecses, Jozsef
[J]. MECHANISM AND MACHINE THEORY, 2009, 44 (11) : 1999 - 2019
[7] A regularized contact model with asymmetric damping and dwell-time dependent friction
Gonthier, Y
McPhee, J
Lange, C
Piedboeuf, JC
[J]. MULTIBODY SYSTEM DYNAMICS, 2004, 11 (03) : 209 - 233
[8] Gonzalez F., 2014, IDETC 14 ASME INT DE
[9] The role of the mass matrix in the analysis of mechanical systems
Hirschkorn, Martin
Koevecses, Jozsef
[J]. MULTIBODY SYSTEM DYNAMICS, 2013, 30 (04) : 397 - 412
[10] COEFFICIENT OF RESTITUTION INTERPRETED AS DAMPING IN VIBROIMPACT
HUNT, KH
CROSSLEY, FRE
[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1975, 42 (02): : 440 - 445

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