Interrelated Dimensional Chains in Predicting Accuracy of Turbine Wheel Assembly Parameters

International Conference on Mechanical Engineering, Automation and Control Systems 2017

机械制造;无线电电子学;计算机科学

Yanyukina, M.V.^1 ; Bolotov, M.A.^1 ; Ruzanov, N.V.^1

Samara University, Moskovskoe Shosse 34, Samara

443086, Russia^1

关键词: Aircraft industries;    Assembly accuracy;    Assembly process;    Dimensional chain;    Manufacturing process;    Parameter tolerance;    Solution algorithms;    Working capacity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/327/2/022106/pdf
DOI  :  10.1088/1757-899X/327/2/022106

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The working capacity of any device primarily depends on the assembly accuracy which, in its turn, is determined by the quality of each part manufactured, i.e., the degree of conformity between final geometrical parameters and the set ones. However, the assembly accuracy depends not only on a qualitative manufacturing process but also on the assembly process correctness. In this connection, there were preliminary calculations of assembly stages in terms of conformity to real geometrical parameters with their permissible values. This task is performed by means of the calculation of dimensional chains. The calculation of interrelated dimensional chains in the aircraft industry requires particular attention. The article considers the issues of dimensional chain calculation modelling by the example of the turbine wheel assembly process. The authors described the solution algorithm in terms of mathematical statistics implemented in Matlab. The paper demonstrated the results of a dimensional chain calculation for a turbine wheel in relation to the draw of turbine blades to the shroud ring diameter. Besides, the article provides the information on the influence of a geometrical parameter tolerance for the dimensional chain link elements on a closing one.