A Special Solution of Spatial Straightness for Four Datapoints

Abstract:

Assessment of spatial straightness error is one of the most difficult tasks in form error evaluation, especially when the minimum zone three-dimensional (3D) straightness is decided by four datapoints. This paper develops a solution that can transform the non-linear system into a linear system. To solve the linear indeterminate system of equations, a method of factor fixed is proposed. Given adequate initial conditions, this solution will be the exact solution. The effectiveness and efficiency of the novel approach are illustrated by two examples.

• Periodical: Advanced Materials Research (Volumes 562-564)
• Pages: 544-547
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.562-564.544
• Online since: August 2012
• Authors: Fan Wu Meng, Chun Guang Xu, Juan Hao
• Keywords: Algorithm (GA), Minimum Circumscribed Cylinder, Spatial Straightness

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