Performance Loss Model Based Forecasting Method of Robot Assembly Quality

Chen³

2009

IJISA

Self Cite

In the process of product manufacturing, control of assembly error will directly affect product operating behavior. When product running, operating loads will lead to change of assembly relation of product parts, affecting product behavior. Based on Jacobian-Torsor method, the Jacobian-Torsor tolerance model, considering contribution of operating loads, was extended and corrected, the assembly error (assembly relation change) resulted from operating loads can be calculated. Variation of running behavior with assembly error was divided to three phases: compensation phase, rapid loss phase and total loss phase. Based on changing curve of product behavior, function of behavior loss was constructed to describe behavior loss resulting from assembly error of a part of product. The conception and calculating method of behavior loss index (BLI) are given to reflect behavior changing status of whole product under certain assembly accuracy. Combined with extended Jacobian-Torsor method, the calculated results can be used to predict product behavior change led by operating loads. The prediction can help to know next measurement adopted in product design phase. An example is given to demonstrate calculating procedure of given method.

Section: A Changing Tendency Of Working Behaviormentioning

confidence: 99%

Prediction of Operating Loads Contribution to Assembly Relation and Product Behavior

Chen³

2009

IJISA

Self Cite

Section: A Changing Tendency Of Working Behaviormentioning

confidence: 99%

Forecasting Method of Product Behavior Change Under Working Environment

2009 International Workshop on Intelligent Systems and Applications

Chen

2009

Self Cite

In the process of product manufacturing, control of assembly error will directly affect product working behavior. Variation of working behavior with assembly error was partitioned to three phases: compensation phase, rapid loss phase and total loss phase. Based on changing curve of product behavior, Function of behavior loss was constructed to describe behavior loss resulting from assembly error of a part of product. The conception and calculating method of behavior loss index (BLI) are given to reflect behavior changing status of whole product under certain assembly accuracy. Based on Jacobian-Torsor method, the Jacobian-Torsor tolerance model, considering impact factors of working condition, was extended and corrected, the assembly error resulted from working environment can be calculated. Combined with BLI, the calculated results can be used to forecast product behavior change lead by working load. The forecast can help to determine next measurement adopted. Finally, an example was used to demonstrate calculating procedure of given method. Keywords-Working environmen; Behavior change forecasting; Behavior loss index; Jacobian-Torsor method I.978-1-4244-3894-5/09/$25.00 ©2009 IEEE

Assembly Accuracy Based Tendency Analysis and Predicting Method for Product Behavior

2009 International Conference on Measuring Technology and Mechatronics Automation

Yang

2009

Self Cite

In the process of product manufacturing, control of assembly accuracy will directly affect product working behavior. Variation of working behavior with assembly accuracy was partitioned to three phases: compensation phase, rapid loss phase and total loss phase. Based on changing curve of product behavior, Function of behavior loss was constructed to describe behavior loss resulting from assembly error of a part of product. The conception and calculating method of behavior loss index (BLI) are given to reflect behavior changing status of whole product under certain assembly accuracy. Taking BLI value for reference, next measurement adopted can be determined. Finally, an example was used to demonstrate calculating procedure of BLI.