A New Posture Evaluation Method of Wing Based on Iterative Closest Point Algorithm

Abstract:

During the process of aircraft wing finish machining, it is required to calculate the posture of aircraft wing to guide its adjustment. This paper proposes a new method to calculate the posture for aircraft wing finishing machining, through analyzing the level-measuring principle of aircraft wing. The proposed method is based on the iterative closest point algorithm (ICP), which transforms the posture evaluation problem into a registration problem between space points and surface. It repeats two processes, finding the nearest points and calculating the optimal transformation, until the convergence criteria of correctly matching are well satisfied. It also has an important part matching priority so that it could satisfy the different accuracy requirements of different metrical points. A case is presented to validate the proposed method, and the results suggest its feasibility.

• Periodical: Advanced Materials Research (Volumes 718-720)
• Pages: 1279-1285
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.718-720.1279
• Online since: July 2013
• Authors: Jian Chuan Li, Jian Feng Yu
• Keywords: ICP, Points Matching, Posture Evaluation, SVD, Uncertain Measurement Points, Wing

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