Authors:
J. C. Miao
1
;
P. Zhu
2
;
G. L. Shi
2
and
G. L. Chen
2
Affiliations:
1
School of Mechanical Engineering, Shanghai JiaoTong University; Shazhou institute of technology, China
;
2
School of Mechanical Engineering, Shanghai JiaoTong University, China
Keyword(s):
Flexible multi-body dynamics, Condensed FMD equation, Sub-cycling algorithm, Energy balance.
Related
Ontology
Subjects/Areas/Topics:
Informatics in Control, Automation and Robotics
;
Modeling, Simulation and Architectures
;
Robot Design, Development and Control
;
Robotics and Automation
;
Space and Underwater Robotics
;
Virtual Environment, Virtual and Augmented Reality
Abstract:
This paper presents a Newmark method based sub-cycling algorithm, which is suitable for solving the condensed flexible multi-body dynamic (FMD) problems. Common-step update formulations and sub-step update formulations for quickly changing variables and slowly changing variables of the FMD are established. Stability of the procedure is checked by checking energy balance status. Examples indicate that the sub-cycling is able to enhance the computational efficiency without dropping results accuracy greatly.