Analysis of beam landing shifts due to thermal deformations of a shadow mask

Author

Kim, Hyeongyu ; Im, Seyoung

Author_Institution

Dept. of Mech. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

40

Issue

1

fYear

1994

fDate

2/1/1994 12:00:00 AM

Firstpage

47

Lastpage

54

Abstract

Finite element analysis is performed for the purpose of calculating the landing shift of electron beams due to thermal deformations of a shadow mask. For realistic finite element analysis, firstly the apparent thermal conductivity and the apparent elastic modulus are calculated, and the shadow mask is modeled as shell without slits. Next the finite element formulation is developed for transient thermoelastic deformation of the shadow mask, wherein thermal radiation is a major heat transfer mechanism. The simulation results are in good agreement with the test results, and this suggests that the present finite element scheme may be efficiently used for thermal deformation design of a shadow mask

Keywords

cathode-ray tubes; elastic deformation; elastic moduli; electron beams; finite element analysis; masks; thermal conductivity of solids; thermoelasticity; apparent elastic modulus; apparent thermal conductivity; beam landing shifts; finite element analysis; heat transfer; shadow mask; simulation results; test results; thermal deformations; thermal radiation; transient thermoelastic deformation; Apertures; Assembly; Electron beams; Finite element methods; Magnetic shielding; Performance analysis; Phosphors; Springs; Thermal conductivity; Thermal engineering;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.273651

Filename

273651