Search or filter publications

Filter by type:

Filter by publication type

Filter by year:

to

Results

  • Showing results for:
  • Reset all filters

Search results

  • Journal article
    Astolfi A, 1997,

    Singular H-inf Control for Nonlinear Systems

    , International Journal of Robust and Nonlinear Control, Vol: 7, Pages: 727-740
  • Conference paper
    Astolfi A, Milek JJ, Kraus FJ, 1997,

    Parameter identification of nonlinear systems with known structure

    , 5th Mediterranean Control Conference, Paphos, Cyprus
  • Conference paper
    Astolfi A, Kraus FJ, Qiu X, Schaufelberger Wet al., 1997,

    Identification and LQ-control of a servo-system

    , Computer Aided Education in Automation and Control, Bratislava, Slovak Republic
  • Book
    Astolfi A, Limebeer DJN, Melchiorri C, Tornambe A, Vinter RBet al., 1997,

    Discontinuous control of the nonholonomic integrator: Modelling and Control of Mechanical Systems

    , Publisher: World Scientific Publisher
  • Conference paper
    Astolfi A, 1996,

    Extending Discontinuous Stabilizers for Nonholonomic Systems from Kinematic Controllers to Dynamic Controllers

    , Mathematical Theory of Networks and Systems, St. Louis, MO
  • Conference paper
    Astolfi A, Schaufelberger W, 1996,

    State and output feedback stabilization of multiple chained systems with discontinuous control

    , 35th Conference on Decision and Control, Kobe, Japan
  • Journal article
    Gartner H, Astolfi A, 1996,

    Stability Study of a Fuzzy Controlled Mobile Robot

    , International Journal of Intelligent Control and Systems, Vol: 1, Pages: 367-379
  • Conference paper
    Astolfi A, Del Re L, 1996,

    A note on local and global feedback linearization of SISO nonlinear systems

    , 13th IFAC World Congress, San Francisco, CA
  • Conference paper
    Astolfi A, Milek JJ, Kraus FJ, 1996,

    On-line parameter estimation of continuous-time nonlinear dynamical systems

    , World Automation Conference, Montpellier, France
  • Journal article
    Astolfi A, 1996,

    Discontinuous control of nonholonomic systems

    , Systems and Control Letters, Vol: 27, Pages: 37-45
  • Conference paper
    Gartner H, Astolfi A, 1996,

    Stability study of a fuzzy controlled mobile robot

    , 35th Conference on Decision and Control, Kobe, Japan
  • Journal article
    Childs PRN, Long CA, 1996,

    A review of forced convective heat transfer in stationary and rotating annuli

    , PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE, Vol: 210, Pages: 123-134, ISSN: 0954-4062
    • Cite
    • Citations: 38
  • Journal article
    Terwiesch P, Astolfi A, 1996,

    Robust end-point optmizing feedback for nonlinear dynamic processes

    , International Journal of Control, Vol: 65, Pages: 995-1015
  • Journal article
    Del Re L, Goransson A, Astolfi A, 1996,

    Enhancing hydrostatic gear efficiency through nonlinear optimal control strategies

    , Journal of Dynamics Systems, Measurements and Control, Vol: 118, Pages: 727-732
  • Book
    Astolfi A, 1996,

    Control of Hamiltonian Systems

    , Publisher: World Scientific Publisher
  • Journal article
    CALVO RA, CECCATTO HA, PIACENTINI RD, 1995,

    NEURAL-NETWORK PREDICTION OF SOLAR-ACTIVITY

    , ASTROPHYSICAL JOURNAL, Vol: 444, Pages: 916-921, ISSN: 0004-637X
  • Conference paper
    Childs PRN, Long CA, Turner AB, 1995,

    A review of convective heat transfer in open and closed rotating annular cavities

    , 4th UK National Conference on Heat Transfer, Publisher: MECHANICAL ENGINEERING PUBL, Pages: 67-71, ISSN: 1356-1448
  • Conference paper
    TERWIESCH P, ASTOLFI A, 1995,

    Approximate H infinity end-point optimization for nonlinear dynamic processes

    , 1995 American Control Conference, Publisher: AMER AUTOMATIC CONTROL COUNCIL, Pages: 1762-1766
  • Conference paper
    ASTOLFI A, 1995,

    Exponential stabilization of a car-like vehicle

    , 1995 IEEE International Conference on Robotics and Automation, Publisher: I E E E, Pages: 1391-1396, ISSN: 1050-4729
    • Cite
    • Citations: 23
  • Conference paper
    Astolfi A, 1995,

    On the relation between state feedback and full information regulators in H infinity control

    , 34th IEEE Conference on Decision and Control, Publisher: I E E E, Pages: 327-332
  • Conference paper
    Astolfi A, 1994,

    Adaptive compensation of nonlinear time varying torque disturbance in rigid robots

    , Pages: 297-302

    This paper presents a new approach to the control of rigid robots when actuator dynamics and nonlinearities (e.g. saturation), Coulumb friction, ... are relevant. An adaptive like algorithm is used in order to obtain desired trajectory tracking in the presence of unknown, non linear, time varying torque disturbances acting on the robot.
  • Conference paper
    Astolfi A, 1994,

    Singular H∞ control

    , Pages: 2543-2548, ISSN: 0191-2216

    The present paper presents a solution to the singular H∞ control problem via state feedback for a class of nonlinear systems. It is shown that the problem of almost disturbance decoupling with stability plays a fundamental role in the solution of the considered problem. We also point out when the singular problem can be reduced to a regular one or solved via standard H<inf>∞</inf> technique. We must stress that the solution of the singular problem is obtained without making any approximation of it by regular problems, i.e. via the so called cheap control. The latter is used to provide a solution to the general H<inf>∞</inf> control problem, i.e. when no assumptions are made on the zero dynamic of the system.
  • Conference paper
    Basualdo MS, Calvo RA, Ceccatto HA, 1994,

    Neural control strategies of a binary distillation column

    , Pages: 77-81

    The ability of neural networks to model arbitrary nonlinear functions and their inverses is exploited for the adaptive control of nonlinear systems. Neural networks which model the plant and its inverse are directly incorporated within the internal model control structure. In addition, a test was made with the open loop control using only the neural model of the plant inverse. Finally, combined structures of conventional controllers (P, PD) with this inverse model were implemented in order to improve the performance of the controlled system. The potential of the proposed methods is demonstrated using the control of the top of a continuous Benzene-Toluene distillation column as an example. The dynamic behavior of that system is obtained by using a complex software simulation.
  • Conference paper
    Bayley FJ, Childs PRN, 1994,

    Air temperature rises in compressor and turbine stator wells

    , Pages: 1-10, ISSN: 0402-1215

    This paper considers the fluid dynamic principles determining the consequences of mainstream fluid ingressing to the comparatively shallow space between the rotor disc and the ring used in many designs of axial-flow turbo-machine, especially compressors, to support the stator blades at their inner ends. Windage power due to friction between this fluid and the bounding walls of this annular space, or 'stator well', can lead to substantial temperature rises in this region. The feasible range of flow regimes is first developed, especially as influenced by leakage through the internal seals beneath the stators separating adjacent wells. Using published data, on windage coefficients and the effects of geometry on the flow through the wells, very little of which has been obtained from truly representative flow conditions or geometries, calculations have been made to estimate the likely rises in temperature to be anticipated in realistic well designs. Leakage rates appear, not unexpectedly, to be crucial in determining these temperature rises, but the geometries of the system are little less critical, in particular the ratio of the outer to inner radiuses of the stator well and the outer peripheral clearances between rotor and stator surfaces. Leakage into a well from its adjacent neighbour is shown to lead to higher temperature rises downstream of the labyrinth seal and the possible effects of recirculation through stator wells from the mainstream boundary layer could be significant.
  • Conference paper
    Bayley FJ, Childs PRN, 1994,

    Air temperature rises in compressor and turbine stator wells. ASME Paper 94-GT-185

    , ASME Turbo Expo 1994, Publisher: ASME
  • Conference paper
    CHILDS PRN, TURNER AB, 1994,

    HEAT TRANSFER ON THE SURFACE OF A CYLINDER ROTATING IN AN ANNULUS AT HIGH AXIAL AND ROTATIONAL REYNOLDS NUMBERS

    , 10th International Heat Transfer Conference, Publisher: INST CHEMICAL ENGINEERS, Pages: 13-18
  • Conference paper
    DELRE L, GORANSSON A, ASTOLFI A, 1994,

    ENHANCING HYDROSTATIC GEAR EFFICIENCY THROUGH NONLINEAR OPTIMAL-CONTROL STRATEGIES

    , 3rd IEEE Conference on Control Applications, Publisher: I E E E, Pages: 403-408
  • Conference paper
    ASTOLFI A, LANARI L, 1994,

    DISTURBANCE ATTENUATION AND SET-POINT REGULATION OF RIGID ROBOTS VIA H infinity CONTROL

    , 33rd IEEE Conference on Decision and Control, Publisher: I E E E, Pages: 2578-2583, ISSN: 0191-2216
    • Cite
    • Citations: 16
  • Conference paper
    ASTOLFI A, 1994,

    SINGULAR H infinity CONTROL

    , 33rd IEEE Conference on Decision and Control, Publisher: I E E E, Pages: 2543-2548, ISSN: 0191-2216
  • Conference paper
    ASTOLFI A, 1994,

    ON THE STABILIZATION OF NONHOLONOMIC SYSTEMS

    , 33rd IEEE Conference on Decision and Control, Publisher: I E E E, Pages: 3481-3486, ISSN: 0191-2216
    • Cite
    • Citations: 43

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://www.imperial.ac.uk:80/respub/WEB-INF/jsp/search-t4-html.jsp Request URI: /respub/WEB-INF/jsp/search-t4-html.jsp Query String: id=1221&limit=30&resgrpMemberPubs=true&resgrpMemberPubs=true&page=131&respub-action=search.html Current Millis: 1776396123135 Current Time: Fri Apr 17 04:22:03 BST 2026