Biomedical subjects

Tan-qiu Li

Publications and source records attributed to Tan-qiu Li.

3 recordsLinked to original sources

PubMed2003

[A robot measurement system for spacesuit joint torque].

OBJECTIVE: To measure the joint torque of spacesuit so as to evaluate its dynamic force/torque performance. METHOD: A method for measuring the spacesuit joint torque by use of robot technology was proposed in this paper. The design of the measuring strategy and measuring robot was put forward and a mathematical model of the system was given. Then the working space of the robot was analyzed. RESULT: The robot designed is light, compact, easy to operate, and has a large working space. Experimental results demonstrated the effectiveness of the measuring principle and the reliability of the measuring system. CONCLUSION: The system can satisfy the requirements of the spacesuit joint torque measurement.

Biomechanical Phenomena↗

PubMed2003

[Principles and experimental analysis of a measuring system for measuring spacesuit joint's damping parameters].

OBJECTIVE: To measure the damping parameters of the spacesuit joint. METHOD: The principles of the passive robot system for measuring spacesuit joint's damping parameters were presented. Basing on its special mechanical structure, a 3 DOF model of the flexible IVA (intra-vehicular activity) spacesuit's sleeve was built. The optimal approximation of inverse calculation based on 6 dimension space interval was described. The damping parameters of an actual IVA spacesuit's sleeve were measured on the actual testbed. Also, the potential application of the measuring system was discussed. RESULT: The model of spacesuit sleeve and the forward/inverse kinematics were proved by experimental measurements and real time 3D simulation. CONCLUSION: The principles and the proposed method of the measurement were testified.

Computer Simulation↗

PubMed2003

[Research and realization of technique of intra-vehicular pressure garment].

OBJECTIVE: To study the technology of intra-vehicular pressure protection for manned space craft pressure emergency and to develop the pressure garment. METHOD: According to the requirements of manned spacecraft emergency, the research scheme was proposed. Then the realization method of the following techniques were studied: structure of the pressure suit, pressure control, ergonomics, ventilation and oxygen supply, vision support and anti-fog. The performance of the space suit was verified by research and environment experiment. RESULT: An intra-vehicular pressure garment system was realized. It could fulfil the requirements of pressure protection and ergonomics and has passed overall performance test, interface test, and environment test. CONCLUSION: The intra-vehicular pressure garment developed by us can meet the requirements of space transportation system during pressure emergency.

Atmospheric Pressure↗