Computer-aided design and analysis of new fan motors

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This paper presents a design for a new dc brushless motor with an interior rotor for the cooling fan. The design differs fundamentally from conventional configurations using motors with exterior rotors, the difference being in the motor structure, where the arrangement for the rotor, the stator, and the blades in the fan gives the fan motor a higher stall torque, better efficiency, and reduced noise. The paper first models the fan motor analytically with an equivalent magnetic circuit, then develops a design to meet the desired performance, and follows with a finite-element analysis (FEA) for refinement and verification of this preliminary design. The FEA result confirms the accuracy of the analytical model. With other considerations such as the reduction of waste material taken into account, two other finite-element models are created, based on the foregoing design example, but with different parameters. The paper compares output characteristics of these three models to provide a brief reference for factors to be considered in motor design.

Original languageEnglish
Pages (from-to)3467-3474
Number of pages8
JournalIEEE Transactions on Magnetics
Volume38
Issue number5 II
DOIs
Publication statusPublished - 2002 Sep 1

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Computer aided analysis
Fans
Computer aided design
Rotors
Finite element method
Magnetic circuits
Equivalent circuits
Stators
Turbomachine blades
Analytical models
Torque
Cooling

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

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title = "Computer-aided design and analysis of new fan motors",
abstract = "This paper presents a design for a new dc brushless motor with an interior rotor for the cooling fan. The design differs fundamentally from conventional configurations using motors with exterior rotors, the difference being in the motor structure, where the arrangement for the rotor, the stator, and the blades in the fan gives the fan motor a higher stall torque, better efficiency, and reduced noise. The paper first models the fan motor analytically with an equivalent magnetic circuit, then develops a design to meet the desired performance, and follows with a finite-element analysis (FEA) for refinement and verification of this preliminary design. The FEA result confirms the accuracy of the analytical model. With other considerations such as the reduction of waste material taken into account, two other finite-element models are created, based on the foregoing design example, but with different parameters. The paper compares output characteristics of these three models to provide a brief reference for factors to be considered in motor design.",
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Computer-aided design and analysis of new fan motors. / Tsai, Mi-Ching; Weng, M. H.; Hsieh, Min-Fu.

In: IEEE Transactions on Magnetics, Vol. 38, No. 5 II, 01.09.2002, p. 3467-3474.

Research output: Contribution to journalArticle

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