Simple and efficient algorithm for the roundness error from polar coordinate measurement data

2020 ◽  
Vol 91 (2) ◽  
pp. 025105
Author(s):  
Xiuming Li ◽  
Hanbing Zhu ◽  
Zhen Guo ◽  
Yuwei Liu
Keyword(s):  
Efficient Algorithm ◽  
Measurement Data ◽  
Roundness Error ◽  
Coordinate Measurement ◽  
Polar Coordinate

Statistical Analysis of the Roundness Error Data

2012 ◽  
Vol 472-475 ◽  
pp. 869-874 ◽  
Author(s):  
Zhao Peng Dong ◽  
Li Ling Huang ◽  
Hai Ting Xie ◽  
Fu Gui Huang
Keyword(s):  
Mathematical Model ◽  
Computer Simulation ◽  
Statistical Analysis ◽  
Normal Distribution ◽  
Mathematical Knowledge ◽  
Measurement Data ◽  
Roundness Error ◽  
Main Emphasis ◽  
The Mathematical Model ◽  
Roundness Measurement

In order to simulate the actual roundness measurement accurately, must find the mathematical model of the actual roundness data, the paper’s main emphasis is doing statistical analysis by plenty of measurement data of roundness, using mathematical knowledge to prove that the actual characteristics of roundness parameters obey the normal distribution, and providing the basis for subsequent computer simulation in the future

Blade Blending and Torsion Deformation Analysis Based on its Coordinate Measurement Data

2013 ◽  
Vol 712-715 ◽  
pp. 1576-1579 ◽  
Author(s):  
Yun Yong Cheng ◽  
Zhen Zhen Zhu ◽  
Li Ya Wang ◽  
Jie Yang
Keyword(s):  
Calculation Method ◽  
Measurement Data ◽  
Sampling Strategy ◽  
Geometric Shape ◽  
Deformation Analysis ◽  
Coordinate Measurement ◽  
Probe Radius ◽  
Tolerance Specification ◽  
Radius Compensation ◽  
Torsion Deformation

Blade is one of the most important components of an aero engine; its geometric shape should be inspected carefully in the production stage to ensure that it satisfies the tolerance specification. Blending and torsion deformation are basic items of blade geometric shape inspection. Coordinate Measurement Machine (CMM) has been widely used to perform the blade geometric shape measurement. Some sampling strategies for blade CMM measurement are discussed and one kind of blade blending and torsion deformation calculation method considering the CMM probe radius compensation is presented. Experiments based on simulation data and real measurement data are performed to verify the adopted sampling strategy and deformation calculation method.

Manufactured Part Modeling for Characterization of Geometric Variations of Automotive Spaceframe Extrusions

1998 ◽  
Vol 120 (3) ◽  
pp. 523-531 ◽  
Author(s):  
Yu (Michael) Wang ◽  
S. Gupta ◽  
F. L. Hulting ◽  
P. S. Fussell
Keyword(s):  
Experimental Data ◽  
Measurement Data ◽  
Critical Parameters ◽  
Coordinate Measurement ◽  
Coordinate Measurement Machine ◽  
Bending Process ◽  
Actual Shape ◽  
Part Modeling ◽  
Part Model

This article presents a method for characterizing geometric shape variations in manufactured automotive spaceframe extrusions using measurement data obtained by a Coordinate Measurement Machine (CMM). With a manufacturing perspective, a modeling scheme is proposed for representing the actual shape of the extrusions. Systematic deviations in the geometry of the parts from their theoretically perfect design description models are described by the critical parameters of their manufactured part models (MPMs), which are constructed by fitting CMM data through an optimization. The manufactured part model can then be interpreted in a meaningful way for improving bending process as well as quantifying the process capability. An application of the methodology is illustrated through the analysis of experimental data for rotary draw bent extrusions used in the aluminum intensive automobiles.

Roundness error evaluation algorithm based on polar coordinate transform

Measurement ◽  
2011 ◽  
Vol 44 (2) ◽  
pp. 345-350 ◽  
Author(s):  
Xianqing Lei ◽  
Chunyang Zhang ◽  
Yujun Xue ◽  
Jishun Li
Keyword(s):  
Error Evaluation ◽  
Roundness Error ◽  
Polar Coordinate ◽  
Evaluation Algorithm ◽  
Coordinate Transform

Data Fusion Algorithm Research Based on Multi Scout Radar Networking

2014 ◽  
Vol 933 ◽  
pp. 554-559
Author(s):  
Guan Hui Liang ◽  
Gui Zhou Lv ◽  
Li Dong Wang
Keyword(s):  
Data Fusion ◽  
Measurement Data ◽  
Polar Coordinate System ◽  
Fusion Algorithm ◽  
Data Synthesis ◽  
Polar Coordinate ◽  
Distance Data ◽  
Result Analysis ◽  
Coordinate Conversion ◽  
Core Problem

Considering the shortcoming of low measurement precision of single scout radar in battlefield, this paper advances the scheme of multi scout radar networking. Aiming at the core problem of networking data fusion of multi scout radars, this paper conducts research and advances data fusion algorithm based on polar coordinate system. This paper provides the realization flow of data fusion algorithm and pays more attention to the problem of coordinate conversion, error calculation, weight determination and data synthesis based on weight, and advances solution. Finally, taking five radars networking for example, conducts simulation experiment and result analysis, and the results shows that whether the fusion precision of distance data or the azimuth data all has greater improvement than measurement data.

Sign in / Sign up

Export Citation Format

Share Document