Deformation characterization method of typical double-walled turbine blade structure during casting process

doi:10.1007/s42243-022-00897-y

Abstract
Figure/Table
References
Related Citation (2)

Download: PDF (0 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract To address the complex structures, large out-of-tolerance issues, and inconsistent quality of double-walled turbine blades, a mapping relationship between the structure and deformation was established based on a structural correlation study. Numerical simulations and pouring experiments were carried out based on the designed double-walled model, and a reliable displacement field model of the double-walled blade was established. A decoupling method for the displacement field of the double-walled blade castings was proposed, which decoupled the displacement field into bending, torsion, and expansion/shrinkage deformation vectors. Based on the displacement field analysis of the theoretical and physical models, an expansion/shrinkage model of double-walled blade structure castings was established. Furthermore, an experiment to determine the mapping relationship between double-walled construction and deformation was designed, which included the characteristic distribution distance and designed angle as structural parameters. The functional relationship between the deformation and the structural parameters was established based on a nonlinear regression method.

Key words： Turbine blade Double-walled structure Deformation decoupling Expansion/shrinkage model Structure–deformation mapping

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Yi-wei Dong
	Peng-fei Shao
	Xiang Guo
	Bo Xu
	Chun-ping Yin
	Zhi-yong Tan

Cite this article:

Yi-wei Dong,Peng-fei Shao,Xiang Guo, et al. Deformation characterization method of typical double-walled turbine blade structure during casting process[J]. Journal of Iron and Steel Research International, 2023, 30(10): 2010-2020.