Open AccessError Analysis of Cycloid Gear Based on Ellipse Fitting Based on Least Square Approach
Author(s) -
Sai Lou,
Fucong Liu,
Haoran Wang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2095/1/012067
Subject(s) - cycloid , ellipse , reducer , cycloid gear , preprocessor , curve fitting , computer science , algorithm , matlab , mathematics , artificial intelligence , geometry , engineering , machine learning , operating system , civil engineering
In this paper, under the condition of the existing processing and detecting technology, we used coordinate measuring machine (CMM) to measure the contour of cycloid gear. In order to improve the accuracy of measured data, we used Euclidean distance and Laida criterion to preprocess measured data. After preprocessing the measured data of the cycloid gear, we used ellipse fitting based on least square approach to fit the contour data points of the cycloid gear, and used the determination coefficient method to evaluate the goodness of fitting. According to the result of the curve fitting of cycloid gear, we used Matlab to analyse and calculate the pitch errors of cycloid gear, which provides data for the subsequent matching of parts combination of the best RV reducer with genetic algorithm.