Asok Ray

    • 6887 Citations
    • 36 h-Index
    1976 …2019
    If you made any changes in Pure, your changes will be visible here soon.

    Research Output 1976 2019

    Filter
    Article
    2001
    69 Citations (Scopus)

    Fatigue crack growth under variable-amplitude loading: Part II - Code development and model validation

    Ray, A. & Patankar, R., Nov 1 2001, In : Applied Mathematical Modelling. 25, 11, p. 995-1013 19 p.

    Research output: Contribution to journalArticle

    Fatigue Crack Growth
    Model Validation
    State-space Model
    Fatigue crack propagation
    Crack Closure
    68 Citations (Scopus)

    Fatigue crack growth under variable-amplitude loading: Part I - Model formulation in state-space setting

    Ray, A. & Patankar, R., Nov 1 2001, In : Applied Mathematical Modelling. 25, 11, p. 979-994 16 p.

    Research output: Contribution to journalArticle

    Fatigue Crack Growth
    Fatigue crack propagation
    State Space
    Overload
    Formulation
    12 Citations (Scopus)

    Fuzzy damage-mitigating control of a fossil power plant

    Holmes, M. & Ray, A., Jan 1 2001, In : IEEE Transactions on Control Systems Technology. 9, 1, p. 140-147 8 p.

    Research output: Contribution to journalArticle

    Power plants
    Durability
    Control systems
    Controllers
    Maintainability
    1 Citation (Scopus)

    Life extending controller design for reusable rocket engines

    Ray, A., Holmes, M. S. & Lorenzo, C. F., Jan 1 2001, In : Aeronautical Journal. 105, 1048, p. 315-322 8 p.

    Research output: Contribution to journalArticle

    Reusable rockets
    Rocket engines
    Controllers
    Space shuttles
    Robust control
    6 Citations (Scopus)

    Nonlinear control of a reusable rocket engine for life extension

    Lorenzo, C. F., Ray, A. & Holmes, M. S., Jan 1 2001, In : Journal of Propulsion and Power. 17, 5, p. 998-1004 7 p.

    Research output: Contribution to journalArticle

    reusable rocket engines
    Reusable rockets
    Plant life extension
    Rocket engines
    controllers
    5 Citations (Scopus)

    Observer-embedded L2-gain control

    Hong, B. S. & Ray, A., Jul 1 2001, In : Applied Mathematics Letters. 14, 5, p. 563-569 7 p.

    Research output: Contribution to journalArticle

    Gain control
    Observer
    Controllers
    Controller
    Hamiltonians
    1 Citation (Scopus)

    Online monitoring of fatigue crack damage for life extending control of aircraft structures

    Sastry, V. V. S. & Ray, A., Jan 1 2001, In : Proceedings of the American Control Conference. 3, p. 2363-2364 2 p.

    Research output: Contribution to journalArticle

    Aircraft
    Controllers
    Monitoring
    Structural loads
    Cyclic loads
    2000
    5 Citations (Scopus)

    Calibration and estimation of redundant signals

    Ray, A. & Phoha, S., Jan 1 2000, In : Automatica. 36, 10, p. 1525-1534 10 p.

    Research output: Contribution to journalArticle

    Power plants
    Calibration
    Transport aircraft
    Adaptive filters
    Covariance matrix
    5 Citations (Scopus)

    Damage-mitigating control with overload injection: Experimental validation of the concept

    Zhang, H., Ray, A. & Patankar, R., Jan 1 2000, In : Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME. 122, 2, p. 336-342 7 p.

    Research output: Contribution to journalArticle

    injection
    Robust control
    damage
    Feedback control
    Durability
    26 Citations (Scopus)

    Fuzzy wide-range control of fossil power plants for life extension and robust performance

    Kallappa, P. & Ray, A., Jan 2000, In : Automatica. 36, 1, p. 69-82 14 p.

    Research output: Contribution to journalArticle

    Plant life extension
    Power plants
    Controllers
    Durability
    Fuzzy logic
    18 Citations (Scopus)

    Hybrid life-extending control of mechanical systems: Experimental validation of the concept

    Zhang, H., Ray, A. & Phoha, S., Jan 2000, In : Automatica. 36, 1, p. 23-36 14 p.

    Research output: Contribution to journalArticle

    Controllers
    Energy conversion
    Service life
    Spacecraft
    Dynamical systems
    7 Citations (Scopus)

    Life extending control of aircraft: trade-off between flight performance and structural durability

    Ray, A. & Caplin, J., Sep 2000, Aeronautical Journal, 104, 1039, p. 397-408 12 p.

    Research output: Contribution to specialist publicationArticle

    Flight dynamics
    Durability
    Aircraft
    Service life
    Controllers
    6 Citations (Scopus)

    Nonlinear life-extending control of a rocket engine

    Lorenzo, C. F., Holmes, M. S. & Ray, A., Jan 1 2000, In : Journal of Guidance, Control, and Dynamics. 23, 4, p. 759-762 4 p.

    Research output: Contribution to journalArticle

    Reusable rockets
    rocket engines
    Rocket engines
    Transient analysis
    thrust chamber pressure
    3 Citations (Scopus)

    Parameter-dependent L2-gain control synthesis

    Hong, B. S., Ray, A. & Yang, V., 2000, In : Proceedings of the American Control Conference. 5, p. 3697-3701 5 p.

    Research output: Contribution to journalArticle

    Gain control
    Game theory
    Feedback control
    Scheduling
    Control systems

    Pilot safety enhancement for on-board ground collision avoidance systems

    Pinchak, S. J. & Ray, A., 2000, In : Aircraft Engineering and Aerospace Technology. 72, 5, p. 422-429 8 p.

    Research output: Contribution to journalArticle

    Collision avoidance
    Recovery
    Aircraft
    Aircraft engines
    Seats
    2 Citations (Scopus)

    Robust damage-mitigating control of aircraft for high performance and structural durability

    Caplin, J., Ray, A. & Joshi, S. M., Jan 1 2000, In : Proceedings of the American Control Conference. 5, p. 3048-3052 5 p.

    Research output: Contribution to journalArticle

    Durability
    Aircraft
    Controllers
    Flight dynamics
    Fatigue crack propagation
    42 Citations (Scopus)

    Robust feedback control of combustion instability with modeling uncertainty

    Hong, B. S., Yang, V. & Ray, A., Jan 1 2000, In : Combustion and Flame. 120, 1-2, p. 91-106 16 p.

    Research output: Contribution to journalArticle

    combustion stability
    Robust control
    feedback control
    Feedback control
    Closed loop control systems
    26 Citations (Scopus)

    State-space modeling of fatigue crack growth in ductile alloys

    Patankar, R. & Ray, A., May 1 2000, In : Engineering Fracture Mechanics. 66, 2, p. 129-151 23 p.

    Research output: Contribution to journalArticle

    Fatigue crack propagation
    Cracks
    Crack closure
    Difference equations
    Constitutive equations
    1999
    33 Citations (Scopus)

    A stochastic model of fatigue crack propagation under variable-amplitude loading

    Ray, A. & Patankar, R., Mar 1 1999, In : Engineering Fracture Mechanics. 62, 4-5, p. 477-493 17 p.

    Research output: Contribution to journalArticle

    Stochastic models
    Fatigue crack propagation
    Crack propagation
    Machine components
    Spacecraft
    18 Citations (Scopus)

    Compensatability and optimal compensation under randomly varying distributed delays

    Tsai, N. C. & Ray, A., Jan 1 1999, In : International Journal of Control. 72, 9, p. 826-832 7 p.

    Research output: Contribution to journalArticle

    Controllers
    Sensors
    Actuators
    Compensation and Redress
    Sampling
    6 Citations (Scopus)

    Damage mitigating controller design for structural durability

    Patankar, R. & Ray, A., Jan 1 1999, In : IEEE Transactions on Control Systems Technology. 7, 5, p. 606-612 7 p.

    Research output: Contribution to journalArticle

    Durability
    Controllers
    Rocket engines
    Reusable rockets
    Feedback
    14 Citations (Scopus)
    Robust control
    damage
    Degradation
    Fatigue damage
    degradation
    6 Citations (Scopus)

    Stochastic modeling of fatigue crack damage for information-based maintenance

    Ray, A. & Phoha, S., Dec 1 1999, In : Annals of Operations Research. 91, p. 191-204 14 p.

    Research output: Contribution to journalArticle

    Fatigue
    Stochastic modeling
    Damage
    Machinery
    Stochastic model
    12 Citations (Scopus)
    Risk analysis
    cracks
    damage
    predictions
    Stochastic models
    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
    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
    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
    90 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
    17 Citations (Scopus)

    Stochastic modeling of fatigue crack propagation

    Ray, A., Tangirala, S. & Phoha, S., Jan 1 1998, In : Applied Mathematical Modelling. 22, 3, p. 197-204 8 p.

    Research output: Contribution to journalArticle

    Fatigue Crack Propagation
    Stochastic Modeling
    Fatigue crack propagation
    Crack propagation
    Crack Propagation
    20 Citations (Scopus)

    Technical note. Robust multivariable control of rotorcraft in forward flight: Impact of bandwidth on fatigue life

    Rozak, J. N. & Ray, A., Jul 1 1998, In : Journal of the American Helicopter Society. 43, 3, p. 195-201 7 p.

    Research output: Contribution to journalArticle

    Fatigue of materials
    Bandwidth
    Control systems
    Helicopters
    Multivariable control systems
    1997
    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)
    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., Jan 1 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 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
    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
    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
    6 Citations (Scopus)
    reusable rocket engines
    Reusable rockets
    engine parts
    Rocket engines
    damage
    21 Citations (Scopus)
    reusable rocket engines
    Reusable rockets
    engine parts
    thrust chambers
    Rocket engines

    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
    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
    111 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
    1995
    37 Citations (Scopus)

    A Reconfigurable Hybrid System and Its Application to Power Plant Control

    Garcia, H. E., Ray, A. & Edwards, R. M., Jan 1 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)

    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 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