Improving measurement accuracy on coordinate measuring machines under destabilizing factors

Authors

DOI:

https://doi.org/10.18372/2073-4751.80.19770

Keywords:

coordinate measuring machine, measurement accuracy, destabilizing factors, thermal deformations, vibrations, mechanical stresses, humidity, air pressure, electromagnetic interference, mathematical model, tensor fields, nonlinear filtering; control system

Abstract

The paper develops theoretical foundations for improving measurement accuracy on coordinate measuring machines (CMM) through comprehensive consideration of destabilizing factors' influence. A generalized mathematical model based on fourth-rank tensor fields is proposed, which takes into account the mutual influence of thermal deformations, vibrations, mechanical stresses, changes in humidity, air pressure, and electromagnetic interference. A system of nonlinear integral equations for describing deformation fields and an error compensation algorithm based on nonlinear filtering methods have been developed. The possibility of improving measurement accuracy through the application of the developed model and results correction algorithm has been theoretically substantiated. A methodology for practical application of the proposed approach for various types of coordinate measuring machines and operating conditions is presented.

References

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Published

2025-03-13

Issue

Section

Статті