Papers by Farid Amirouche
Computers & Structures, 1987
The formulation of the equations of motion for constrained multibody systems is presented. The pr... more The formulation of the equations of motion for constrained multibody systems is presented. The procedures employed use Kane's equations as developed by Huston er al. and use a tree-like configuration array as a basis for analysis. A Pseudo Uptriangular Decomposition method along with the Gramm-Schmidt process is developed to modify Kane's equations when the constraint equations are introduced using the undetermined multipliers. This approach is shown to be far reaching in its application and it is tailored for general purpose algorithms used in the development of computer programs for complex structure dynamics.
Computational methods in multibody dynamics
NASA STI/Recon Technical Report A, 1992
... RIGID STRUCTURES, SYSTEMS STABILITY. Bibliographic Code: 1992STIA... 9412550A. Abstract. Mult... more ... RIGID STRUCTURES, SYSTEMS STABILITY. Bibliographic Code: 1992STIA... 9412550A. Abstract. Multibody systems dynamics with rigid and flexible interconnected bodies are discussed. The topics addressed include: rigid ...
Fundamentals of multibody dynamics. Theory and applications
ABSTRACT
Investigation of bone mineral density on the risk factors of vertebral fractures and spondylosis
Principles of Computer Aided Design and Manufacturing
Computer Aided Design, Computer Aided Engineering and Variational Design”
Computer Assisted Surgery and Current Trends in Orthopaedics Research and Total Joint Replacements
Musculoskeletal research has brought about revolutionary changes in our ability to perform high p... more Musculoskeletal research has brought about revolutionary changes in our ability to perform high precision surgery in joint replacement procedures. Recent advances in computer assisted surgery as well better materials have lead to reduced wear and greatly enhanced the quality of life of patients. The new surgical techniques to reduce the size of the incision and damage to underlying structures have been the primary advance toward this goal. These new techniques are known as MIS or Minimally Invasive Surgery.
Regularization and stability of the constraints in the dynamics of multibody systems
Nonlinear Dynamics, 1990
In the analysis of multibody dynamics, we are often required to deal with singularity problems wh... more In the analysis of multibody dynamics, we are often required to deal with singularity problems where the constraint Jacobian matrix may become less than full rank at some instantancous configurations. This creates numerical instability which will affect the performance of the mechanical system. A modification procedure of the constraints when they vanish or become linearly dependent is proposed to regularize
Review of Multibody Dynamics and Visualization
Journal of Guidance, Control, and Dynamics, 2007
Modeling of Human Reactions to Whole-Body Vibration
Journal of Biomechanical Engineering, 1987
A computer-automated approach for studying the human body vibration is presented. This includes v... more A computer-automated approach for studying the human body vibration is presented. This includes vertical, horizontal, and torsional vibration. The procedure used is based on Finite Segment Modeling (FSM) of the human body, thus treating it as a mechanical structure. Kane's equations as developed by Huston et al. are used to formulate the governing equations of motion. The connective tissues are modeled by springs and dampers. In addition, the paper presents the transient response of different parts of the body due to a sinusoidal forcing function as well as an impulse function applied to the lower torso in the vertical direction.
IEEE Engineering in Medicine and Biology Magazine, 2000
A biomechanical study of the finger pulley system during repair
Technology and health care: official journal of the European Society for Engineering and Medicine
This paper addresses the mechanics of the finger/pulley system when subjected to various excision... more This paper addresses the mechanics of the finger/pulley system when subjected to various excisions and repairs. Several cadaver hands were used to study the finger/pulley's function, finger joint dynamics, and the relationship between tendon excursion and finger joint angles of rotation. By using a method of continuous and simultaneous data acquisition of the entire finger joint's motion, a more detailed analysis was achieved. Our experimental investigation is based on the use of four micro-potentiometers inserted at the finger's joints and a pulley system to simulate tendon excursion. Using this procedure, a detailed kinematic analysis of the entire finger was performed. This included analysis of the intact hand, various pulley excisions, and reconstruction. In addition to introducing a new method of acquisition, a mathematical model was developed for the inverse dynamic analysis of the finger pulley system. From this model, the torques required at the joints for the motion were computed. The results provided new insight into possible ways of characterizing kinematic changes resulting from pulley damage and repair.
Sensory Glove Device for Microsurgery and Validation of The Quiet Hand Technique
Experimental Investigation of Under-Reaming Stability and Micromotion in Total Hip Arthroplasty
The Influence of Femoral Stem’s Neck Angle on Pressure Development in the Hip Joint during Single Leg Stance
Clover hitch tendon suture: experimental tensile strength comparison with other tendon sutures
Multi-Level Cervical Fusion And Its Effects On Disc Degeneration And Osteophyte Formation
Experimental Investigation of Finger Joint Flexion and FDP Excursion Before and After MCP Joint Arthroplasty
Are various brands of usp number 2 suture equivalent
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Papers by Farid Amirouche