摘要:

In turning on a centre lathe between running centres an axial force is necessary to hold the workpiece steady under the forces generated in removing the material. This force can generate substantial friction moments at the interfaces between the supporting centres and the workpiece which oppose bending out of the line of the centres. The effect of this is found to cause some reduction in errors of form and out of roundness predicted without including friction. It is shown that the variation in quasi-static and cyclic compliance as the tool traverses the work is non-linear and sudden changes occur which can trigger chatter conditions.

ISSN:0020-7543    

DOI:10.1080/00207548408942457

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

A previous paper (Browne et al. 1981) identified the decision making problems associated with job shop control and presented an objective function for measuring its performance. Given that definition of job shop control and cost-based objective function, simulation modelling offers the best prospect of a solution of the problem of providing a management tool to aid in the decision making associated with job shop control. This paper provides a detailed analysis of the design of such a model. The model, written in the GASP fV simulation language and running on a CDC 7600 computer, is based on the job shop of a major machine tool manufacturer and has been validated against actual job shop performance.

ISSN:0020-7543    

DOI:10.1080/00207548408942458

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor