Browsing by Author "Louca, Loucas S."

Now showing items 21-40 of 61

    • Article  

      Generating proper dynamic models for truck mobility and handling 

      Louca, Loucas S.; Rideout, D. G.; Stein, J. L.; Hulbert, G. M. (2004)
      The effectiveness and utility of an energy-based model reduction algorithm for two different vehicle system modeling applications are discussed. The first case study focuses on the vehicle dynamics model of a military ...
    • Conference Object  

      Hardware acceleration of n-body simulations for galactic dynamics 

      Cook, Todd A.; Kim, Hong-Ryul; Louca, Loucas S. (Affiliation: Rutgers Univ., Piscataway, NJ, USA, United StatesCorrespondence Address: Cook, Todd A.Rutgers Univ., Piscataway, NJ, USAUnited States, 1995)
      N-body methods are used to simulate the evolution and interaction of galaxies. These simulations are usually run on large-scale supercomputers or on very expensive full-custom hardare. This paper presents an alternative ...
    • Article  

      Ideal physical element representation from reduced bond graphs 

      Louca, Loucas S.; Stein, J. L. (2002)
      Previous research has demonstrated that bond graphs are a natural and convenient representation to implement energy-based metrics that evaluate the relative 'value' of energy elements in a dynamic system model. Bond graphs ...
    • Conference Object  

      Identification of kinematic traits in 3D reaching Tasks with the use of a haptic Nine-Hole Peg-Board Test: Comparison between healthy people and people with Multiple Sclerosis 

      Xydas, E. G.; Louca, Loucas S. (Affiliation: Mechanical and Manufacturing Engineering Department, University of Cyprus, P.O. Box: 20537, Nicosia, CyprusAffiliation: Mechanical and Manufacturing Engineering Department, University of Cyprus, CyprusCorrespondence Address: Xydas, E. G.Mechanical and Manufacturing Engineering Department, University of Cyprus, P.O. Box: 20537, Nicosia, Cyprusemail: mep4ex01@ucy.ac.cy, 2008)
      Multiple Sclerosis (MS) is a complex neurological disease that destroys the myelin sheath of the nerves, consequently affecting the motor control ability of the person in numerous ways. Rehabilitation of the upper limb ...
    • Conference Object  

      Implementation of IEEE single precision floating point addition and multiplication on FPGAs 

      Louca, Loucas S.; Cook, Todd A.; Johnson, William H. (Affiliation: Rutgers Univ, Piscataway, United StatesCorrespondence Address: Louca, LoucasRutgers Univ, Piscataway, United States, 1996)
      Floating point operations are hard to implement on FPGAs because of the complexity of their algorithms. On the other hand, many scientific problems require floating point arithmetic with high levels of accuracy in their ...
    • Article  

      Implementing the milliken moment method using controlled dynamic simulation 

      Kang, D.; Stein, J. L.; Hoffman, R. C.; Louca, Loucas S.; Huh, K. (2005)
      The Milliken Moment Method (MMM) can be used to quantify the constraints imposed on vehicle stability and controllability by front and rear tire traction limitations. The main aspect of the Milliken Moment Method is the ...
    • Article  

      Integrated, feed-forward hybrid electric vehicle simulation in SIMULINK and its use for power management studies 

      Lin, C.-C.; Filipi, Z.; Wang, Y.; Louca, Loucas S.; Peng, H.; Assanis, D.; Stein, J. (2001)
      A hybrid electric vehicle simulation tool (HE-VESIM) has been developed at the Automotive Research Center of the University of Michigan to study the fuel economy potential of hybrid military/civilian trucks. In this paper, ...
    • Article  

      Integration and use of diesel engine, driveline and vehicle dynamics models for heavy duty truck simulation 

      Assanis, D.; Bryzik, W.; Chalhoub, N.; Filipi, Z.; Henein, N.; Jung, D.; Liu, X.; Louca, Loucas S.; Moskwa, J.; Munns, S.; Overholt, J.; Papalambros, P.; Riley, S.; Rubin, Z.; Sendur, P.; Stein, J.; Zhang, G. (1999)
      An integrated vehicle system simulation has been developed to take advantage of advances in physical process and component models, flexibility of graphical programming environments (such as MATLAB-SIMULINK), and ever ...
    • Conference Object  

      Minimally Actuated Four-Bar Linkages for Upper Limb Rehabilitation 

      Xydas, E.; Mueller, A.; Louca, Loucas S. (Springer International Publishing, 2018)
      In the previous years the scientific community dealt extensively with designing, developing and testing robot-based rehabilitation systems. Besides the benefits that resulted for disabled people, this twenty-year endeavor ...
    • Article  

      Minimally actuated four-bar linkages for upper limb rehabilitation 

      Xydas, E.; Mueller, A.; Louca, Loucas S. (2018)
      In the previous years the scientific community dealt extensively with designing, developing and testing robot-based rehabilitation systems. Besides the benefits that resulted for disabled people, this twenty-year endeavor ...
    • Article  

      Modal analysis reduction of multi-body systems with generic damping 

      Louca, Loucas S. (2014)
      Modal analysis of multi-body systems is broadly used to study the behavior and controller design of dynamic systems. In both cases, model reduction that does not degrade accuracy is necessary for the efficient use of these ...
    • Conference Object  

      Modal analysis reduction of multi-body systems with generic damping 

      Louca, Loucas S. (Caltek s.r.l., 2012)
      Modal analysis of multi-body systems is broadly used to study the behavior and controller design of dynamic systems. In both cases, model reduction that does not degrade accuracy is necessary for the efficient use of these ...
    • Conference Object  

      A model accuracy and validation algorithm 

      Sendur, P.; Stein, J. L.; Peng, H.; Louca, Loucas S. (American Society of Mechanical Engineers (ASME), 2002)
      Dynamic models of physical systems with physically meaningful states and parameters have become increasingly important, for design, control and even procurement decisions. The successful use of models in these contexts ...
    • Conference Object  

      Model complexity of a cantilever beam: An energy-based approach 

      Louca, Loucas S. (Dime University of Genoa, 2015)
      The cantilever beam is a component widely used in numerous engineering systems with its geometric and material properties varying depending on the application. Calculating the dynamic behavior of a cantilever beam is a ...
    • Book Chapter  

      Model complexity of distributed parameter systems: An energy-based approach 

      Louca, Loucas S. (Springer International Publishing, 2016)
      Continuous components, like the cantilever beam, are widely used in numerous engineering systems with their geometric and material properties varying depending on the application. Calculating the dynamic behavior of a ...
    • Conference Object  

      Model reduction of modal representations 

      Louca, Loucas S.; Xydas, E. (American Society of Mechanical Engineers (ASME), 2006)
      Dynamic analysis is extensively used to study the behavior of continuous and lumped parameter linear systems. In addition to the physical space, analyses can also be performed in the modal space where useful frequency ...
    • Conference Object  Open Access

      Modeling with stagecast creator: a video-case Study describing the process of Developing, evaluating and refining models of Accelerated motion in elementary school 

      Louca, Loucas S.; Zacharia, Zacharias C. (University of Cyprus, 2007)
      This paper describes a video case study from an elementary science/computer after-school club during which eleven sixth graders used Stagecast Creator™ to develop computer-based models of accelerated motion. Research in ...
    • Article  

      Modelling and control of a medium-duty hybrid electric truck 

      Lin, C.-C.; Filipi, Z.; Louca, Loucas S.; Peng, H.; Assanis, D.; Stein, J. (2004)
      The main contributions of this paper are the development of a forward-looking hybrid vehicle simulation tool, and its application to the design of a power management control algorithm, The hybrid electric vehicle simulation ...
    • Article  

      Modelling and reduction techniques for studies of integrated hybrid vehicle systems 

      Louca, Loucas S.; Yildir, B. U. (2006)
      Models of integrated vehicle systems are essential for designing hybrid vehicles by means of simulation-based optimization. Given the complexity of hybrid vehicle systems, designing is a time consuming process that requires ...
    • Conference Object  

      A modular modeling approach for the design of reconfigurable machine tools 

      Ersal, T.; Stein, J. L.; Louca, Loucas S. (Affiliation: Department of Mechanical Engineering, University of Michigan, Ann Arbor, United StatesAffiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, CyprusCorrespondence Address: Ersal, T.Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, United Statesemail: tersal@umich.edu, 2004)
      A new generation of machine tools called Reconfigurable Machine Tools (RMTs) is emerging as a means for industry to be more competitive in a market that experiences frequent changes in demand. New methodologies and tools ...