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�������պ����ѧѧ�� 2006, Vol. 32 Issue (03) :254-257    DOI:
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����, ׯ����*
�������պ����ѧ ���տ�ѧ�빤��ѧԺ, ���� 100083
Human modeling and simulation based on Lagrangian method in weightlessness
Wang Juan, Zhuang Damin*
School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� The necessity of computational multi-body dynamics simulating the astronaut extra vehicular activity (EVA) was described. The 4 joints universal human body inverse kinematics model and inverse dynamics model in weightlessness utilizing computational multi-body dynamics were proposed. A typical EVA, an actual large-mass-handling EVA performed on STS-63, was chosen as the instance to simulate. Based on some simplifications, a typical EVA was simulated and calculated using universal human model. Considering the influence of weightlessness on human modeling, the universal model should be amended. The results were analyzed according to energy comparison method. The results showed when hand movement contrail radius and angle velocity minishing, movement time prolonging and hip joint flexion moving, accomplishing task retrenched energy. Human body joint movement comfortable scope could be achieved by energy comparison method. The calculational methods provided the reference value for the astronaut intra and extra vehicular activity simulation and ergonomic analysis.
Keywords�� weightlessness   inverse kinematics model   inverse dynamics model   Lagrangian method     
Received 2005-06-12;


About author: �� ��(1978-), Ů, ����������, ��ʿ��,wangjuan1111@126.com.
����, ׯ����.����Lagrange������ʧ�����彨ģ�����[J]  �������պ����ѧѧ��, 2006,V32(03): 254-257
Wang Juan, Zhuang Damin.Human modeling and simulation based on Lagrangian method in weightlessness[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(03): 254-257
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