System for estimating thermal stress of pressure parts

Details System for estimating thermal stress of pressure parts System for estimating thermal stress of pressure parts

1985-04-24

1988-12-20

Lall, Parshotam S.

Boots, shoes, and leggings

364558, 374137, 290 40R, 60646, F01J 500

Patent

active

047929120

ABSTRACT:
Thermal stress of a metal portion of a pressure-tight tube is calculated on the basis of calculated values of a temperature distribution calculator for calculating the distribution of temperature at positions equidistantly arranged in a direction of the thickness of the aforesaid tube on the basis of measured values of metal portion of the aforesaid tube, whereby the thermal stress being changed momently is accurately measured and monitored. Further, there is provided a calculation cycle setter for presetting calculation cycles on the basis of measured values of the fluid temperature in the aforesaid tube. The calculation cycles are made short when fluctuations in the measured values of the fluid temperature are large, while, the calculation cycles are made long when fluctuations in the measured values of the fluid temperature are small.

REFERENCES:
patent: 4173891 (1979-11-01), Johnson
patent: 4228359 (1980-10-01), Matsumoto et al.
patent: 4364676 (1982-12-01), Oja et al.
patent: 4393365 (1983-07-01), Kondo et al.
patent: 4535593 (1985-08-01), Sakka

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