Release Time:2019-03-12  Hits:

Indexed by: Journal Papers

Date of Publication: 2018-07-01

Journal: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING

Included Journals: SCIE

Volume: 232

Issue: 9

Page Number: 1609-1619

ISSN: 0954-4100

Key Words: Hard coating; bladed disk; multiobjective optimization; damping capacity; Kriging model; NSGA-II

Abstract: In this paper, the damping capacity and the structural influence of the hard coating on the given bladed disk are optimized by the non-dominated sorting genetic algorithm (NSGA-II) coupled with the Kriging surrogate model. Material and geometric parameters of the hard coating are taken as the design variables, and the loss factors, frequency variations and weight gain are considered as the objective functions. Results of the bi-objective optimization are obtained as curved line of Pareto front, and results of the triple-objective optimization are obtained as Pareto front surface with an obvious frontier. The results can give guidance to the designer, which can help to achieve more superior performance of hard coating in engineering application.