Probabilistic Model-based Motion Accuracy Analysis of RVABI  
Author Yanze Wang

 

Co-Author(s) Zihan Tian; Xiaowei Yin; Lei Wang; Wenxue Qian

 

Abstract In order to study the motion accuracy of the RVABI (Rear Variable Area Bypass Injector) under various errorrelated influences, the motion analysis model of the RVABI with clearance error is established based on the screw theory. The interaction between different types of errors and calculation methods is discussed. Additionally, in combination with the Monte Carlo sampling method, the influence of each error on the working position of the fan blade is calculated. By sampling a large amount of data, the maximum positioning error of the fan blade for a period of operation is obtained. This paper proposes the concept of "error surface sampling" and discusses the interaction between various errors. It effectively solves the problem of analyzing the correlation between various errors under simultaneous action in mechanism error analysis and improves the accuracy of the analysis.

 

Keywords RVABI, kinematics, motion accuracy analysis, large data sampling
   
    Article #:  RQD2024-272
 

Proceedings of 29th ISSAT International Conference on Reliability & Quality in Design
August 8-10, 2024