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Multistation layout optimization method based on genetic algorithm-Sequence quadratic programming.

Ziqi Liang1, Hongfang Chen1, Ao Zhang1

  • 1Beijing University of Technology, Beijing 100021, China.

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Summary
This summary is machine-generated.

Optimizing laser tracer multistation measurement systems improves accuracy. This study developed a hybrid genetic algorithm and sequence quadratic programming method to enhance system layout, significantly reducing positioning errors.

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Area of Science:

  • Precision Engineering
  • Metrology
  • Computational Geometry

Background:

  • Laser tracer multistation measurement systems are crucial for large-scale precision tasks.
  • System layout directly impacts measurement accuracy and overall system performance.
  • Optimal design of multistation layouts is essential for advancing measurement technologies.

Purpose of the Study:

  • To introduce an optimized multistation layout method for laser tracer systems.
  • To enhance measurement accuracy and efficiency in large-scale precision measurement.
  • To address the critical need for optimal system configuration in multistation measurement.

Main Methods:

  • A hybrid optimization model combining genetic algorithms (GA) and sequence quadratic programming (SQP).
  • Formulation of an objective function based on the positional accuracy attenuation factor.
  • Inclusion of constraints such as maximum measurement length, tracer angle, and measurement space range.

Main Results:

  • The hybrid GA-SQP method achieved optimal station configuration.
  • Experimental validation on a coordinate measuring machine demonstrated significant error reduction.
  • Three-axis positioning errors were reduced by 60.8%, 38.1%, and 25.7% post-optimization.

Conclusions:

  • The proposed multistation layout optimization method is highly effective.
  • The approach offers substantial improvements in positioning accuracy for laser tracer systems.
  • The method shows significant potential for broad engineering applications in precision measurement.