Browsing Department of Mechanical Engineering by Title

Now showing items 1-20 of 137

    • Active Vorticity Control in a Shear Flow Using a Flapping Foil 

      Gopalkrishnan, R.; Triantafyllou, M.S.; Triantafyllou, G.S.; Barrett, D.S. (Cambridge University Press, 1994)
      It is shown experimentally that free shear flows can be substantially altered through direct control of the large coherent vortices present in the flow.

    • Adaptive Control of a Generic Hypersonic Vehicle 

      Wiese, Daniel P.; Annaswamy, Anuradha M.; Muse, Jonathan A.; Bolender, Michael A.; Lavretsky, Eugene (2016-03-10)
      This paper presents an adaptive augmented, gain-scheduled baseline LQR-PI controller applied to the Road Runner six-degree-of-freedom generic hypersonic vehicle model. Uncertainty in control effectiveness, longitudinal ...

    • Adaptive Output Feedback Based on Closed-Loop Reference Models for Hypersonic Vehicles 

      Wiese, Daniel P.; Annaswamy, Anuradha M.; Muse, Jonathan A.; Bolender, Michael A.; Lavretsky, Eugene (2016-03-09)
      This paper presents a new method of synthesizing an output feedback adaptive controller for a class of uncertain, non-square, multi-input multi-output systems that often occur in hypersonic vehicle models. The main challenge ...

    • Adaptive Output Feedback Based on Closed-Loop Reference Models for Hypersonic Vehicles 

      Annaswamy, Anuradha M.; Wiese, Daniel P.; Muse, Jonathan A.; Bolender, Michael A.; Lavretksy, Eugene (2015-04-07)
      This paper presents a new method of synthesizing an output feedback adaptive controller for a class of uncertain, non-square, multi-input multi-output systems that often occur in hypersonic vehicle models. The main challenge ...

    • Adaptive Output-Feedback Control for A Class of Multi-Input-Multi-Output Plants with Applications to Very Flexible Aircraft 

      Qu, Zheng; Annaswamy, Anuradha; Lavretsky, Eugene (2015-10-07)
      A dominant presence of parametric model uncertainties necessitates an adaptive approach for control of very flexible aircraft (VFA). This paper proposes an adaptive controller that includes a baseline design based on ...

    • Adaptive Output-Feedback Control with Closed-Loop Reference Models and Applications to Very Flexible Aircraft 

      Qu, Zheng; Anuradha, Annaswamy (2015-04-07)
      This paper proposes an adaptive controller for a class of multi-input multi-output (MIMO) plants where the number of outputs is larger than the number of inputs, an example of which is very-flexible aircraft (VFA). A ...

    • American Society for Echocardiography Software Suite for Verification and 

      Claesen, S; Heart, G; Li, W; Bharath, A; Chandra, S; e.a. (Institute of Electrical and Electronic Engineers, 1995)
      The imminent balloting of the draft DICOM 3.0 module on ultrasound represents a major step forward in the progress of digital storage formats for echocardiography. In this paper, we discuss a software suite soon to be ...

    • Analysis of Slow Convergence Regions in Adaptive Systems 

      Nouwens, Oscar; Annaswamy, Anuradha; Lavretsky, Eugene (2015-10-07)
      We examine convergence properties of errors in a class of adaptive systems that corresponds to adaptive control of linear time-invariant plants with state variables accessible. We demonstrate the existence of a sticking ...

    • Applications of Finite Element Methods 

      Aljashmi, Mohammed (2021-01-21)

    • Areas of contact and pressure distribution in bolted joints 

      Gould, Herbert Hirsch; Mikic, B. B. (Cambridge, Mass. : M.I.T. Engineering Projects Laboratory, [1970], 1970)
      When two plates are bolted (or riveted) together these will be in contact in the immediate vicinity of the bolt heads and separated beyond it. The pressure distribution and size of the contact zone is of considerable ...

    • Boiling and condensation in a liquid-filled enclosure 

      Bar-Cohen Avram; Bergles A. E. (Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1971], 1971)
      A combined experimental and analytical investigation of boiling and condensation in a liquid-filled enclosure, with water and Freon- 113 as the working fluids, is described. The operating characteristics of a boiling system, ...

    • Bubble growth rates in boiling 

      Griffith, P. (Cambridge, Mass. : Massachusetts Institute of Technology, Division of Industrial Cooperation, [1956], 1956)
      The conditions determining the growth rate of a bubble on a surface in boiling are considered and a mathematical model framed in the light of these conditions. The growth rate is then calculated for bubbles growing under ...

    • The bubbly-slug transition in a high velocity two phase flow 

      Griffith, P.; Snyder, George A. (Cambridge, Mass. : M.I.T. Division of Sponsored Research, [1964], 1964)
      A possible mechanism for the transition between bubbly and slug flow is proposed and tested in a simulated slug flow system. No sudden collapse of slug flow with increasing velocity is found and it is concluded that: a. ...

    • Burnout in forced convection nucleate boiling of water 

      Reynolds John Mitchell (Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1957], 1957)
      Data are presented for burnout in forced coivection nucleate boiling of water at pressures above 500 psia. A dimensionless correlation is devised for. the M.I.T. data which is found to be valid for certain recent data ...

    • Calculation of Dynamic Motions and Tensions in Towed Underwater Cables 

      Hover, Frank S.; Grosenbaugh, Mark A.; Triantafyllou, Michael S. (Institute of Electrical and Electronic Engineers, 1994)
      A matrix method for mooring system analysis is extended to address the dynamic response of towed underwater systems. Key tools are equivalent linearization and small perturbation theory, and a pitching towfish model. ...

    • Co-Design of Arbitrated Network Control Systems with Overrun Strategies 

      Soudbakhsh, Damoon; Phan, Linh; Annaswamy, Anuradha; Sokolsky, Oleg (2015-06-28)
      This paper addresses co-design of platform and control of multiple control applications in a network control system. Limited and shared resources among control and noncontrol applications introduce delays in transmitted ...

    • Cooling of high-power-density computer components 

      Bergles A. E.; Bakhru, N.; Shires, J. W. (Cambridge, Mass. : M.I.T. Heat Transfer Laboratory, [1968], 1968)
      This report summarizes work carried out during the first two years of a research program sponsored by IBM Corporation. This study has elucidated a number of the heat-transfer characteristics of several fluorochemicals which ...

    • Correlation of maximum heat flux data for boiling of saturated liquids 

      Rohsenow, Warren M.; Griffith, P. (Cambridge, Mass. : Massachusetts Institute of Technology, Division of Industrial Cooperation, [1955], 1955)

    • The correlation of nucleate boiling burn-out data 

      Griffith, P. (Cambridge, Mass. : M.I.T. Division of Industrial Cooperation, [1957], 1957)
      A dimensionless correlation is developed for nucleate boiling buzrnout data including the following ranges of variables. Fluids - Water Bensene n - Heptane n - Pentane Ethanol Pressure - 0.0045 to 0.96 of critical pressure ...

    • Delay-Aware Control Designs of Wide-Area Power Networks: Proofs of the Results 

      Dibaji, Seyed Mehran; Yildiz, Yildiray; Annaswamy, Anuradha; Chakrabortty, Aranya; Soudbakhsh, Damoon (2017-04-07)
      The purpose of this document is to provide proofs of the results in Dibaji et al. (2017).