Optimal design of press-fitted filament wound composite flywheel rotors

Andrew C. Arvin; Charles E. Bakis

doi:10.1016/j.compstruct.2004.10.012

Optimal design of press-fitted filament wound composite flywheel rotors

Andrew C. Arvin, Charles E. Bakis

Research output: Contribution to journal › Article › peer-review

67 Scopus citations

Abstract

This paper explores the design of press-fitted, cylindrical, filament wound composite flywheel rotor rims using two-dimensional plane stress anisotropic elasticity solutions and an optimization method based on simulated annealing. A method of accounting for residual stresses in press-fitted composite rims is proposed and demonstrated. The starting point for the designs is an open core rotator motor/generator with a pre-determined, fixed pair of concentric rotor rings, upon which several carbon/epoxy rings with different structural properties are press-fitted. For certain assumed sequences of carbon fiber types versus radius, optimal designs are determined with the objective of maximizing specific energy of the rotor subject to constraints defined by expected operating speeds and temperatures as well as material strengths. The optimal solutions suggest that specific energies of 40-50 W · h/ kg and tip speeds of 800-900 m/s are feasible with 5-8 press-fitted carbon/epoxy rings.

Original language	English (US)
Pages (from-to)	47-57
Number of pages	11
Journal	Composite Structures
Volume	72
Issue number	1
DOIs	https://doi.org/10.1016/j.compstruct.2004.10.012
State	Published - Jan 2006

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Civil and Structural Engineering

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10.1016/j.compstruct.2004.10.012

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title = "Optimal design of press-fitted filament wound composite flywheel rotors",

abstract = "This paper explores the design of press-fitted, cylindrical, filament wound composite flywheel rotor rims using two-dimensional plane stress anisotropic elasticity solutions and an optimization method based on simulated annealing. A method of accounting for residual stresses in press-fitted composite rims is proposed and demonstrated. The starting point for the designs is an open core rotator motor/generator with a pre-determined, fixed pair of concentric rotor rings, upon which several carbon/epoxy rings with different structural properties are press-fitted. For certain assumed sequences of carbon fiber types versus radius, optimal designs are determined with the objective of maximizing specific energy of the rotor subject to constraints defined by expected operating speeds and temperatures as well as material strengths. The optimal solutions suggest that specific energies of 40-50 W · h/ kg and tip speeds of 800-900 m/s are feasible with 5-8 press-fitted carbon/epoxy rings.",

author = "Arvin, {Andrew C.} and Bakis, {Charles E.}",

note = "Funding Information: This research was funded by NASA Grant NAG3-2598 and monitored by Dr. Barbara Kenny of NASA Glenn Research Center. Numerous colleagues at Penn State provided useful technical assistance with various aspects of this investigation: Dr. Ryan P. Emerson and Mr. John M. Noland of the Engineering Science and Mechanics Department and Prof. Heath Hofmann, Mr. Yiming Liu, and Mr. Wensen Wang of the Electrical Engineering Department. ",

year = "2006",

month = jan,

doi = "10.1016/j.compstruct.2004.10.012",

language = "English (US)",

volume = "72",

pages = "47--57",

journal = "Composite Structures",

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publisher = "Elsevier B.V.",

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AU - Arvin, Andrew C.

AU - Bakis, Charles E.

N1 - Funding Information: This research was funded by NASA Grant NAG3-2598 and monitored by Dr. Barbara Kenny of NASA Glenn Research Center. Numerous colleagues at Penn State provided useful technical assistance with various aspects of this investigation: Dr. Ryan P. Emerson and Mr. John M. Noland of the Engineering Science and Mechanics Department and Prof. Heath Hofmann, Mr. Yiming Liu, and Mr. Wensen Wang of the Electrical Engineering Department.

PY - 2006/1

Y1 - 2006/1

N2 - This paper explores the design of press-fitted, cylindrical, filament wound composite flywheel rotor rims using two-dimensional plane stress anisotropic elasticity solutions and an optimization method based on simulated annealing. A method of accounting for residual stresses in press-fitted composite rims is proposed and demonstrated. The starting point for the designs is an open core rotator motor/generator with a pre-determined, fixed pair of concentric rotor rings, upon which several carbon/epoxy rings with different structural properties are press-fitted. For certain assumed sequences of carbon fiber types versus radius, optimal designs are determined with the objective of maximizing specific energy of the rotor subject to constraints defined by expected operating speeds and temperatures as well as material strengths. The optimal solutions suggest that specific energies of 40-50 W · h/ kg and tip speeds of 800-900 m/s are feasible with 5-8 press-fitted carbon/epoxy rings.

AB - This paper explores the design of press-fitted, cylindrical, filament wound composite flywheel rotor rims using two-dimensional plane stress anisotropic elasticity solutions and an optimization method based on simulated annealing. A method of accounting for residual stresses in press-fitted composite rims is proposed and demonstrated. The starting point for the designs is an open core rotator motor/generator with a pre-determined, fixed pair of concentric rotor rings, upon which several carbon/epoxy rings with different structural properties are press-fitted. For certain assumed sequences of carbon fiber types versus radius, optimal designs are determined with the objective of maximizing specific energy of the rotor subject to constraints defined by expected operating speeds and temperatures as well as material strengths. The optimal solutions suggest that specific energies of 40-50 W · h/ kg and tip speeds of 800-900 m/s are feasible with 5-8 press-fitted carbon/epoxy rings.

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JO - Composite Structures

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Optimal design of press-fitted filament wound composite flywheel rotors

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