Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified electrical sensor or system
Patent
1997-06-12
1999-05-04
Noori, Max H.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Specified electrical sensor or system
73116, 364494, 415 17, G01L 906
Patent
active
059005556
ABSTRACT:
A method and apparatus for determining turbine rotor stresses in real time enables increased operation efficiency and more accurate stress determinations. The system calculates rotor bore and surface temperatures based on the time response of the rotor. The rotor surface temperature is measured using a sensor such as a thermocouple, and the measured rotor surface temperature is used to calculate rotor bore temperature and rotor average temperature based on time constants determined as a function of rotor geometry and material. The rotor surface thermal stress and the rotor bore thermal stress can be determined based on the measured and calculated temperatures.
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Automation Flowcharts, drawing No. 186C6639, as a mark-up only available, 1982. No month.
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Segment SEQJ.sub.-- HPST.SRC of Control Sequence Program of Unit Endessa-Patache, dated Feb. 3, 1997.
Drummond Thane Montgomery
Westphal Bernd Artur Karl
General Electric Co.
Noori Max H.
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