[Lecture] Dynamics of Multibody System: Theory and Applications
Dr. Liang Wang
Senior Development Engineer, Hexagon AB, USA
Time:
15:30, July 14, 2023
Venue:
https://teams.microsoft.com/l/meetup-join/19%3ameeting_M2RlZGZkZjYtODY5Mi00NDU3LWJhZjktZTEzYzgxMjAxZmI1%40thread.v2/0?context=%7b%22Tid%22%3a%220b6b9a6a-d9d6-4ef0-a36f-5dc22f35388b%22%2c%22Oid%22%3a%22b3a4a853-427e-4c6d-b1c2-e9007d3c7aa4%22%7d
Abstract:
Multibody system is the study of dynamic behavior of interconnected rigid or flexible bodies, each of which may undergo large translational and rotational displacement. The systematic treatment of the dynamic behavior of interconnected bodies has led to a large number of important formalisms in the field of mechaniscs. Based on the concept of replacing the acutal system by an equivalent model made up from discrete bodies having known elastic and inertia properties, these methods for the nonlinear analysis of physical and mechanical systems developed for use on modern digital computers provide means for acurate analysis of large-scale systems under dynamic loading conditions. Examples of these systems that can be modeled as multibody systems are machines, mechanisms, vehicles, human body and space structures. Clearly, the interconnectd bodies may be rigid or deformable and the large displacement and constraints make the system governing equations higly nonlinear which can not be solved analytically. Numerical methods must be used to find the solution of the dynamic equations. The MBD theory and industrial application will be introduced in this lecture.
Biography:
Liang Wang, Senior Development Engineer at Hexagon AB, Developer of Adams (Automated Dynamic Analysis of Mechanical Systems) C++ Solver. He has developed FE_PART preload, code parallization using SMP (shared memory parallization), new joint formulations and other new utilities in Adams. Before jointing Hexagon. He worked on developing the world’s pioneer human body simulation software LifeMOD. He received his Ph.D. from University of Illinois at Chicago (supervisor: Prof. Ahmed A. Shabana). He received his B.Sc. and M.Sc. from Harbin Instituite of Technology (supervisor: Prof. Guanglin Wang). Main research interests: fluid-structure interaction, railroad dynamics, floating frame of reference formulation, absolute coordinate formulation, multibody software design and implementation.
