Asok Ray

    • 6923 Citations
    • 36 h-Index
    1976 …2019
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    Research Output 1976 2019

    1994
    3 Citations (Scopus)

    Reconfigurable hybrid supervisory system for process control

    Garcia, H. E., Ray, A. & Edwards, R. M., 1994, In : Proceedings of the IEEE Conference on Decision and Control. 3, p. 3131-3136 6 p.

    Research output: Contribution to journalArticle

    Process Control
    Process control
    Hybrid systems
    Control systems
    Decision System
    7 Citations (Scopus)

    robust wide-range control of nuclear reactors by using the feedforward-feedback concept

    Weng, C. K., Edwards, R. M. & Ray, A., Jan 1 1994, In : Nuclear Science and Engineering. 117, 3, p. 177-185 9 p.

    Research output: Contribution to journalArticle

    Nuclear reactors
    Feedback
    Controllers
    Robust stability
    1995
    37 Citations (Scopus)

    A Reconfigurable Hybrid System and Its Application to Power Plant Control

    Garcia, H. E., Ray, A. & Edwards, R. M., Jun 1995, In : IEEE Transactions on Control Systems Technology. 3, 2, p. 157-170 14 p.

    Research output: Contribution to journalArticle

    Hybrid systems
    Power plants
    Control systems
    Breeder reactors
    Discrete event simulation
    2 Citations (Scopus)

    Controls concepts for next generation reusable rocket engines

    Lorenzo, C. F., Merrill, W. C., Musgrave, J. L. & Ray, A., Jan 1 1995, In : Proceedings of the American Control Conference. 6, p. 3942-3950 9 p.

    Research output: Contribution to journalConference article

    Reusable rockets
    Rocket engines
    Durability
    Costs
    2 Citations (Scopus)

    Damage-mitigating control of mechanical structures: Experimental verification of the concept

    Tangirala, S., Ray, A. & Carpino, M., Dec 1 1995, In : Smart Materials and Structures. 4, 2, p. 139-146 8 p., 011.

    Research output: Contribution to journalArticle

    damage
    Systems science
    Rocket engines
    rocket engines
    Testbeds
    2 Citations (Scopus)

    Damage-mitigating control of mechanical structures: experimental verification of the concept

    Tangirala, S., Ray, A. & Carpino, M., Jan 1 1995, In : Proceedings of the American Control Conference. 6, p. 4106-4110 5 p.

    Research output: Contribution to journalConference article

    Rocket engines
    Testbeds
    Mechanics
    Durability
    Fatigue of materials
    2 Citations (Scopus)

    Damage-mitigating control of power systems for structural durability and high performance

    Wu, M. K. & Ray, A., Jan 1 1995, In : Journal of Engineering for Gas Turbines and Power. 117, 2, p. 307-313 7 p.

    Research output: Contribution to journalArticle

    Durability
    Service life
    Reusable rockets
    Availability
    Electric power plants
    3 Citations (Scopus)

    Grammian assignment for stochastic parameter systems and their stabilization under randomly varying delays

    Yaz, E. & Ray, A., Sep 1995, In : Optimal Control Applications and Methods. 16, 4, p. 263-272 10 p.

    Research output: Contribution to journalArticle

    Stabilization
    Assignment
    Nonlinear Matrix Equation
    Static Output Feedback
    Distributed Delay
    3 Citations (Scopus)
    Power plants
    Control systems
    Sensors
    Service life
    Structural properties

    Life extending control of a reusable rocket engine

    Dai, X., Ray, A., Holmes, M., Tangirala, S. & Lorenzo, C. F., 1995, In : Proceedings of the American Control Conference. 1, p. 614-617 4 p.

    Research output: Contribution to journalArticle

    Reusable rockets
    Rocket engines
    Ligaments
    Coolants
    Creep
    14 Citations (Scopus)

    Life prediction of the thrust chamber wall of a reusable rocket engine

    Dai, X. & Ray, A., Jan 1 1995, In : Journal of Propulsion and Power. 11, 6, p. 1279-1287 9 p.

    Research output: Contribution to journalArticle

    reusable rocket engines
    Reusable rockets
    thrust chambers
    Ligaments
    Rocket engines
    1 Citation (Scopus)

    Neural network representation of fatigue damage dynamics

    Li, C. J. & Ray, A., Jan 1 1995, In : Proceedings of the American Control Conference. 5, p. 3284-3288 5 p.

    Research output: Contribution to journalConference article

    Fatigue damage
    Neural networks
    Service life
    Numerical methods
    Monitoring
    10 Citations (Scopus)

    Neural network representation of fatigue damage dynamics

    Li, C. J. & Ray, A., Dec 1 1995, In : Smart Materials and Structures. 4, 2, p. 126-133 8 p., 009.

    Research output: Contribution to journalArticle

    Fatigue damage
    damage
    Neural networks
    Service life
    service life

    Performance management of integrated manufacturing system networks

    Lee, S., Ray, A., Hong, K. S., Yoon, J. & Han, M. C., Jan 1 1995, In : KSME Journal. 9, 3, p. 269-285 17 p.

    Research output: Contribution to journalArticle

    Computer integrated manufacturing
    Conceptual design
    Network protocols
    Flexible manufacturing systems
    Network management
    2 Citations (Scopus)

    Performance management of manufacturing system networks

    Lee, S. & Ray, A., Mar 1 1995, In : International Journal of Flexible Manufacturing Systems. 7, 1, p. 47-71 25 p.

    Research output: Contribution to journalArticle

    Computer integrated manufacturing
    Conceptual design
    Telecommunication networks
    Industrial plants
    Drawing (graphics)

    State-space supervision of reconfigurable discrete event systems

    Garcia, H. E. & Ray, A., 1995, In : Proceedings of the IEEE Conference on Decision and Control. 1, p. 433-438 6 p.

    Research output: Contribution to journalArticle

    Discrete Event Systems
    Discrete event simulation
    State Space
    Specification
    Specifications

    Stochastic modeling of fatigue damage dynamics for failure prognostics and risk analysis

    Ray, A. & Newman, J. C., Jan 1 1995, In : Proceedings of the American Control Conference. 3, p. 1610-1614 5 p.

    Research output: Contribution to journalConference article

    Fatigue damage
    Risk analysis
    Aircraft plants
    Failure analysis
    Stochastic models
    1996

    A decision support system for maintenance management of a boiling-Water reactor power plant

    Shen, J. H., Ray, B. A. & Levine, S., Dec 1 1996, In : Nuclear Safety. 37, 1, p. 1-10 10 p.

    Research output: Contribution to journalArticle

    Management Decision Support Systems
    Power Plants
    Expert Systems
    Boiling water reactors
    Decision support systems
    21 Citations (Scopus)
    reusable rocket engines
    Reusable rockets
    engine parts
    thrust chambers
    Rocket engines
    7 Citations (Scopus)
    reusable rocket engines
    Reusable rockets
    engine parts
    Rocket engines
    damage
    1 Citation (Scopus)

    Life extension of superheater tubes in fossil power plants

    Lele, M., Ray, A. & Kallappa, P., Dec 1 1996, In : ISA TECH/EXPO Technology Update Conference Proceedings. 51, 2, p. 1321-1334 14 p.

    Research output: Contribution to journalConference article

    Superheater tubes
    Plant life extension
    fossils
    power plants
    Power plants
    65 Citations (Scopus)

    Linear unbiased state estimation for random models with sensor delay

    Yaz, E. & Ray, A., 1996, Proceedings of the IEEE Conference on Decision and Control. Anon (ed.). Vol. 1.

    Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

    State estimation
    State feedback
    Error analysis
    Feedback control
    Sensors

    Modeling of the planar motion of a flexible structure

    Holmes, M. S., Ray, A. & Mudgett, D. R., Jan 1 1996, In : Journal of Guidance, Control, and Dynamics. 19, 3, p. 710-713 4 p.

    Research output: Contribution to journalArticle

    Flexible Structure
    Euler-Bernoulli Beam
    Flexible structures
    Nonlinear Model
    Computer Simulation
    31 Citations (Scopus)

    Modelling of power plant dynamics and uncertainties for robust control synthesis

    Weng, C. K., Ray, A. & Dai, X., Jul 1996, In : Applied Mathematical Modelling. 20, 7, p. 501-512 12 p.

    Research output: Contribution to journalArticle

    Power Plant
    Robust control
    Robust Control
    Power plants
    Synthesis
    1 Citation (Scopus)

    Nonlinear stochastic model of fatigue crack length for on-line damage sensing

    Ray, A. & Tangirala, S., Dec 1 1996, Proceedings of the IEEE Conference on Decision and Control. Anon (ed.). p. 3676-3681 6 p. (Proceedings of the IEEE Conference on Decision and Control; vol. 4).

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Stochastic models
    Statistics
    Extended Kalman filters
    Model structures
    Machinery
    18 Citations (Scopus)

    State-space supervisory control of reconfigurable discrete event systems

    Garcia, H. E. & Ray, A., Feb 1 1996, In : International Journal of Control. 63, 4, p. 767-797 31 p.

    Research output: Contribution to journalArticle

    Supervisory personnel
    Discrete event simulation
    Specifications
    Hybrid systems
    State feedback
    112 Citations (Scopus)

    Stochastic modeling of fatigue crack dynamics for on-line failure prognostics

    Ray, A. & Tangirala, S., Dec 1 1996, In : IEEE Transactions on Control Systems Technology. 4, 4, p. 443-451 9 p.

    Research output: Contribution to journalArticle

    Stochastic models
    Reliability analysis
    Service life
    Aluminum alloys
    Dynamical systems
    2 Citations (Scopus)

    Stochastic optimal control under randomly varying distributed delays

    Tsai, N. C. & Ray, A., Dec 1 1996, Proceedings of the IEEE Conference on Decision and Control. Anon (ed.). (Proceedings of the IEEE Conference on Decision and Control; vol. 1).

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Riccati equations
    Dynamic programming
    Closed loop systems
    Feedback control
    Controllers
    1997

    Adaptive control of a fatigue test machine for on-line damage sensing/life prediction

    Keller, E., Zhang, H. & Ray, A., Jan 1 1997, In : Proceedings of the American Control Conference. 1, p. 756-757 2 p.

    Research output: Contribution to journalConference article

    Fatigue testing
    Fatigue of materials
    Controllers
    Compliance
    24 Citations (Scopus)

    A nonlinear stochastic model of fatigue crack dynamics

    Ray, A. & Tangirala, S., Jan 1997, In : Probabilistic Engineering Mechanics. 12, 1, p. 33-40 8 p.

    Research output: Contribution to journalArticle

    Stochastic models
    cracks
    Extended Kalman filters
    Model structures
    Service life
    36 Citations (Scopus)

    Control of forced vibration using multi-electrode electro-rheological fluid dampers

    Gordaninejad, F., Ray, A. & Wang, H., Oct 1997, In : Journal of Vibration and Acoustics, Transactions of the ASME. 119, 4, p. 527-531 5 p.

    Research output: Contribution to journalArticle

    Electrorheological fluids
    electrorheological fluids
    forced vibration
    dampers
    Vibrations (mechanical)
    7 Citations (Scopus)

    Fuzzy damage mitigating control of mechanical structures

    Holmes, M. & Ray, A., Dec 1 1997, In : Proceedings of the IEEE Conference on Decision and Control. 3, p. 2722-2727 6 p.

    Research output: Contribution to journalConference article

    Reusable rockets
    Damage
    Control systems
    Controllers
    Rocket engines
    4 Citations (Scopus)

    Life-extending control of a reusable rocket engine

    Holmes, M., Tangirala, S. & Ray, A., 1997, In : Proceedings of the American Control Conference. 4, p. 2328-2332 5 p.

    Research output: Contribution to journalArticle

    Reusable rockets
    Rocket engines
    Controllers
    Turbines
    Engines
    35 Citations (Scopus)

    Life-extending control of fossil fuel power plants

    Kallappa, P., Holmes, M. S. & Ray, A., Jun 1997, In : Automatica. 33, 6, p. 1101-1118 18 p.

    Research output: Contribution to journalArticle

    Fossil fuel power plants
    Power plants
    Feedforward control
    Feedback control
    Durability
    3 Citations (Scopus)

    Life extending control of gas turbine engines for aircraft propulsion

    Caplin, J. & Ray, A., Dec 1 1997, In : Proceedings of the IEEE Conference on Decision and Control. 5, p. 4700-4701 2 p.

    Research output: Contribution to journalConference article

    Aircraft propulsion
    Gas Turbine
    Gas turbines
    Aircraft
    Engine
    3 Citations (Scopus)

    Life-extending control of reusable rocket engines

    Holmes, M., Tangirala, S. & Ray, A., Jan 1 1997, In : Journal of Guidance, Control, and Dynamics. 20, 3, p. 621-623 3 p.

    Research output: Contribution to journalArticle

    turbomachine blades
    reusable rocket engines
    Reusable rockets
    space shuttles
    service life
    30 Citations (Scopus)

    Robust multivariable control of rotorcraft in forward flight

    Rozak, J. N. & Ray, A., Apr 1 1997, In : Journal of the American Helicopter Society. 42, 2, p. 149-159 11 p.

    Research output: Contribution to journalArticle

    Value engineering
    Robust control
    Model structures
    Helicopters
    Specifications
    39 Citations (Scopus)

    Robust wide-range control of steam-electric power plants

    Weng, C. K. & Ray, A., Dec 1 1997, In : IEEE Transactions on Control Systems Technology. 5, 1, p. 74-88 15 p.

    Research output: Contribution to journalArticle

    Steam power plants
    Electric power plants
    Feedforward control
    Feedback control
    Control systems
    2 Citations (Scopus)

    Stochastic modeling of fatigue crack propagation

    Ray, A. & Tangirala, S., Jan 1 1997, In : Proceedings of the American Control Conference. 1, p. 425-429 5 p.

    Research output: Contribution to journalConference article

    Fatigue crack propagation
    Crack propagation
    Stochastic models
    Model structures
    Aluminum alloys
    32 Citations (Scopus)

    Stochastic optimal control under randomly varying distributed delays

    Tsai, N. C. & Ray, A., Jan 1 1997, In : International Journal of Control. 68, 5, p. 1179-1202 24 p.

    Research output: Contribution to journalArticle

    Aircraft
    Riccati equations
    Computer networks
    Dynamic programming
    Closed loop systems
    1998
    34 Citations (Scopus)

    A state-space model of fatigue crack growth

    Patankar, R., Ray, A. & Lakhtakia, A., Jan 1 1998, In : International Journal of Fracture. 90, 3, p. 235-249 15 p.

    Research output: Contribution to journalArticle

    Fatigue Crack Growth
    State-space Model
    Fatigue crack propagation
    Crack
    Cracks

    Compensatability and optimal compensation under randomly varying distributed delays

    Tsai, N. C. & Ray, A., Dec 1 1998, In : Proceedings of the IEEE Conference on Decision and Control. 1, p. 772-777 6 p.

    Research output: Contribution to journalConference article

    Distributed Delay
    Controller
    Controllers
    Compensator
    Sensor
    3 Citations (Scopus)

    Damage mitigating control of a reusable rocket engine for structural durability

    Holmes, M., Patankar, R., Ray, A. & Tangirala, S., Dec 1 1998, Proceedings of the 1998 American Control Conference, ACC 1998. p. 3317-3321 5 p. 703188. (Proceedings of the American Control Conference; vol. 6).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Reusable rockets
    Rocket engines
    Aircraft plants
    Durability
    Fatigue damage
    2 Citations (Scopus)

    Fatigue crack propagation under variable-amplitude load: Part I - a deterministic state-space model

    Patankar, R. & Ray, A., Dec 1 1998, p. 15-19. 5 p.

    Research output: Contribution to conferencePaper

    Fatigue crack propagation
    Cracks
    Crack closure
    Risk analysis
    Machinery
    1 Citation (Scopus)

    Fatigue crack propagation under variable-amplitude load: Part II - a stochastic model

    Ray, A. & Patankar, R., Dec 1 1998, p. 23-28. 6 p.

    Research output: Contribution to conferencePaper

    Stochastic models
    Fatigue crack propagation
    Crack propagation
    Machine components
    Risk assessment
    3 Citations (Scopus)

    Fuzzy damage-mitigating control of a fossil-fueled power plant

    Holmes, M. & Ray, A., Dec 1 1998, Proceedings of the 1998 American Control Conference, ACC 1998. p. 2289-2293 5 p. 703037. (Proceedings of the American Control Conference; vol. 4).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Power plants
    Control systems
    Controllers
    Maintainability
    Fuzzy logic
    23 Citations (Scopus)

    Fuzzy damage mitigating control of ivjechanical structures

    Holmes, M. S. & Ray, A., Jun 1998, In : Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME. 120, 2, p. 249-256 8 p.

    Research output: Contribution to journalArticle

    Reusable rockets
    damage
    Control systems
    Controllers
    Rocket engines
    3 Citations (Scopus)

    Hybrid damage-mitigating control of mechanical structures

    Zhang, H., Ray, A. & Phoha, S., Dec 1 1998, Proceedings of the 1998 American Control Conference, ACC 1998. p. 254-258 5 p. 694670. (Proceedings of the American Control Conference; vol. 1).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Plant life extension
    Linear control systems
    Closed loop control systems
    Hybrid systems
    Energy conversion
    19 Citations (Scopus)

    Life-extending control of mechanical structures: Experimental verification of the concept

    Tangirala, S., Holmes, M., Ray, A. & Carpino, M., Jan 1 1998, In : Automatica. 34, 1, p. 3-14 12 p.

    Research output: Contribution to journalArticle

    Durability
    Plant life extension
    Systems science
    Feedforward control
    Testbeds
    92 Citations (Scopus)

    Linear unbiased state estimation under randomly varying bounded sensor delay

    Yaz, E. & Ray, A., Jan 1 1998, In : Applied Mathematics Letters. 11, 4, p. 27-32 6 p.

    Research output: Contribution to journalArticle

    Unbiased Estimation
    State Estimation
    State estimation
    Error analysis
    Feedback control