TY - GEN
T1 - State space model based theory of assembly variation propagation modeling
AU - Zuo, Fuchang
AU - Zhang, Zhijing
AU - Jin, Xin
AU - Liu, Qin
PY - 2010
Y1 - 2010
N2 - Based on state space, a variation propagation model of multi-station assembly of precision mechanical system was developed. Machining errors generally have great effects on the performance of mechanical system, especially precision mechanical system. In a multi-station assembly process, machining errors at each station accumulate and propagate to other parts, which will eventually degrade assembly accuracy and performance of the system. The differential motion vector was adopted to represent machining errors by the state vector in the model. Considering form errors, an innovative concept of mating coordinate system was proposed. This mating coordinate system, defined by two mating surfaces, can reflect real mating conditions more accurately. Detailed derivation for variation propagation modeling was presented. Finally, state equation and observation equation that can be used to guide measurement were obtained. In conclusion, the model we established can guide fault diagnosis and process design evaluation of precision mechanical system.
AB - Based on state space, a variation propagation model of multi-station assembly of precision mechanical system was developed. Machining errors generally have great effects on the performance of mechanical system, especially precision mechanical system. In a multi-station assembly process, machining errors at each station accumulate and propagate to other parts, which will eventually degrade assembly accuracy and performance of the system. The differential motion vector was adopted to represent machining errors by the state vector in the model. Considering form errors, an innovative concept of mating coordinate system was proposed. This mating coordinate system, defined by two mating surfaces, can reflect real mating conditions more accurately. Detailed derivation for variation propagation modeling was presented. Finally, state equation and observation equation that can be used to guide measurement were obtained. In conclusion, the model we established can guide fault diagnosis and process design evaluation of precision mechanical system.
UR - http://www.scopus.com/inward/record.url?scp=78649307304&partnerID=8YFLogxK
U2 - 10.1109/ICMA.2010.5588385
DO - 10.1109/ICMA.2010.5588385
M3 - Conference contribution
AN - SCOPUS:78649307304
SN - 9781424451418
T3 - 2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010
SP - 589
EP - 594
BT - 2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010
T2 - 2010 IEEE International Conference on Mechatronics and Automation, ICMA 2010
Y2 - 4 August 2010 through 7 August 2010
ER -