NDLI: Real-time flexible multibody simulation with Global Modal Parameterization

Content Provider	Springer Nature Link
Author	Naets, Frank Tamarozzi, Tommaso Heirman, Gert H. K. Desmet, Wim
Copyright Year	2012
Abstract	Many applications require fast and even real-time multibody simulations. Until recently, strongly simplified models were used in order to reach real-time constraints. A novel system-level model reduction technique, namely Global Modal Parameterization (GMP), enables the reduction of a complex mechanism, incorporating flexibility. This technique groups all computationally demanding tasks in a preprocessing phase, which allows the actual simulation to run at real-time. The main strength of the algorithm lies in the fact that the original system of differential-algebraic equations is transformed into a system of ordinary differential equations, which can easily be integrated with explicit methods. This work shortly reviews the GMP-method for systems undergoing 3D motion with multiple rigid DOFs. Furthermore the framework for hard real-time simulation with GMP is discussed. The novelty is the description of a simulation method for a GMP model with an explicit time integrator, which is deployable on hard real-time systems. One of the method’s advantages is the a priori known computational load for each timestep, allowing hard real-time simulations. The method is benchmarked for a flexible spatial slider-crank mechanism, modeled in a commercial flexible multibody package. This is the first application of the GMP-approach on an original floating-frame-of-reference component mode synthesis model undergoing highly dynamical motion.
Starting Page	267
Ending Page	284
Page Count	18
File Format	PDF
ISSN	13845640
Journal	Multibody System Dynamics
Volume Number	27
Issue Number	3
e-ISSN	1573272X
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-01-14
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Multibody dynamics Model reduction Flexible Global modal parameterization Real-time Optimization Vibration, Dynamical Systems, Control Mechanical Engineering Automotive Engineering Electrical Engineering
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Mechanical Engineering Aerospace Engineering Modeling and Simulation Computer Science Applications

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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