Material Design for Reduction of Thermal Stress in a Functionally Graded Material Rotating Disk

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概要

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• The purpose of this paper is to present a method of material design for the weight reduction, the high thermal radiation and the relaxation of in-plane thermal stress and centrifugal stress in a rotating disk without hole composed of functionally graded material (FGM) with arbitrary thermal and mechanical nonhomogeneities in the radial direction. The disk is subjected to an intermittent heating in an annular region near the outer radius and has an arbitrary variation of heat-transfer coefficient along the radial position on the upper and lower surfaces. The transient temperature field is analyzed by modifying Vodicka's method for onedimensional boundary value problems in composite regions, and the thermal stress and centrifugal stress are respectively obtained by solving approximately the equilibrium equations expressed in terms of the displacement component as Euler's differential equations. The material design is carried out for the rotating disks composed of Ti+6A1+4V and SUS410 FGM, and Ti+6A1+4V, PSZ and SUS410 FGM.

• 2004-04-15

著者

• SUGANO Yoshihiro

  Department of Mechanical Engineering, Iwate University

• HIROSE Koichi

  Department of Allergy and Clinical Immunology, Chiba University Hospital

• Hirose Koichi

  Department Of Allergy And Clinical Immunology Chiba University Hospital

• Hirose Koichi

  Department Of Mechanical Engineering Iwate University

• CHIBA Ryoichi

  Department of Mechanical Engineering, Miyagi National College of Technology

• TAKAHASHI Kazuhiro

  Nichicon Iwate Corporation

• Chiba Ryoichi

  Department Of Chemistry Faculty Of Science Ibaraki University

• Chiba Ryoichi

  Department Of Mechanical Engineering Miyagi National College Of Technology

• Sugano Yoshihiro

  Department Of Mechanical Engineering Iwate University

• Sugano Yoshihiro

  Department Of Mechanical Engineering College Of Engineering University Of Osaka Prefecture

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