Life Extending ControlThe concept of Life Extending Control is defined. Life is defined in terms of mechanical fatigue life. A brief description is given of the current approach to life prediction using a local, cyclic, stress-strain approach for a critical system component. An alternative approach to life prediction based on a continuous functional relationship to component performance is proposed. Based on cyclic life prediction, an approach to life extending control, called the Life Management Approach, is proposed. A second approach, also based on cyclic life prediction, called the implicit approach, is presented. Assuming the existence of the alternative functional life prediction approach, two additional concepts for Life Extending Control are presented.
Document ID
19920046542
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lorenzo, Carl F. (NASA Lewis Research Center Cleveland, OH, United States)
Merrill, Walter C. (NASA Lewis Research Center Cleveland, OH, United States)