MODELING AND CONTROL OF DIMENSIONAL QUALITY OF A SERIAL MULTI-STATION MACHINING SYSTEM

Author:

DU SHICHANG1,XI LIFENG1,PAN ERSHUN1,SHI JIANJUN2,LIU C. RICHARD3

Affiliation:

1. Department of Industrial Engineering and Management, School of Mechanical Engineering, Shanghai Jiaotong University, 2300030, Shanghai, China

2. Department of Industrial and Operations Engineering, The University of Michigan, Ann Arbor, MI 48109, USA

3. School of Industrial Engineering, Purdue University, West Lafayette, IN 47907, USA

Abstract

Modeling and control of dimensional quality is one of deciding factors in current manufacturing competitions, and has always presented a great challenge to both scientists and engineers since for a multi-station machining system, the final product variation is an accumulation from all stations, and the complex non-linear relationship exits between dimensional quality and machining errors. This paper develops a linear state space model using homogeneous transformation to capture the influence of machined errors on dimensional quality, and the explicit expressions for system matrices of the model are explored. The proposed model employs a linear state space form, facilitating the use of the achievements of control theory, information technology and system engineering theory to support engineers supervisory control of physical machining processes, and it also can be used as an analytical engineering tool for efficient and effective faults diagnosis, system plan and design, and optimal sensors allocation. A real machining case illustrates the proposed model.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Industrial and Manufacturing Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Safety, Risk, Reliability and Quality,Nuclear Energy and Engineering,General Computer Science

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