Journal of Mechanical Design: Recent submissions
Now showing items 3061-3080 of 6182
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Modeling of a Fully Flexible 3PRS Manipulator for Vibration Analysis
(The American Society of Mechanical Engineers (ASME), 2006)In this paper we provide a vibration analysis model and the modeling method for a fully flexible 3-Parallel-Revolute-joint-and-Spherical-joint (3PRS) manipulator—a sliding-leg tripod with flexible ... -
On Generating a Class of Foldable Six-Bar Spatial Linkages
(The American Society of Mechanical Engineers (ASME), 2006)Recently isolated through fortuity and subsequent inference, a family of six-revolute spatial linkages is distinguished by dimensional properties which allow the individual loops to be folded, ... -
Kinematic Registration in 3D Using the 2D Reuleaux Method
(The American Society of Mechanical Engineers (ASME), 2006)This paper presents a method for kinematic registration in three dimensions using a classical technique from two-dimensional kinematics, namely the Reuleaux method. In three dimensions the kinematic ... -
Topological Representations and Characteristics of Variable Kinematic Joints
(The American Society of Mechanical Engineers (ASME), 2006)There exist some mechanisms with variable topologies that have interesting applications, for examples, legged walking machines, mechanical push-button stopper locks, and various toys. A variable ... -
Relative Entropy Based Method for Probabilistic Sensitivity Analysis in Engineering Design
(The American Society of Mechanical Engineers (ASME), 2006)In this paper, a new Probabilistic Sensitivity Analysis (PSA) approach based on the concept of relative entropy is proposed for design under uncertainty. The relative entropy based method evaluates ... -
Undercutting and Contact Characteristics of Cylindrical Gears With Curvilinear Shaped Teeth Generated by Hobbing
(The American Society of Mechanical Engineers (ASME), 2006)Undercutting characteristics of the curvilinear-tooth gear, cut by a hob cutter performing motion with two independent parameters, are investigated. The tooth contact analysis (TCA) and the surface ... -
Power Loss Predictions in Geared Transmissions Using Thermal Networks-Applications to a Six-Speed Manual Gearbox
(The American Society of Mechanical Engineers (ASME), 2006)A model is presented which makes it possible to predict power losses in a six-speed manual gearbox. The following sources of dissipation, i.e., power inputs in the model, are considered: (i) ... -
An Approach to Identify Joint Motions for Dynamically Stable Walking
(The American Society of Mechanical Engineers (ASME), 2006)Biped robots are more versatile than conventional wheeled robots, but they tend to tip over easily. The dynamic stability of a biped robot needs to be maintained during walking. In this paper, ... -
Design of Lightweight Lead Screw Actuators for Wearable Robotic Applications
(The American Society of Mechanical Engineers (ASME), 2006)A wearable robot is a controlled and actuated device that is in direct contact with its user. As such, the implied requirements of this device are that it must be portable, lightweight, and ... -
Error Analysis and Compensation for Meshing Contact of Toroidal Drives
(The American Society of Mechanical Engineers (ASME), 2006)This paper investigates the meshing errors of the toroidal drive, reveals three typical latency errors and develops the error analysis in this typical type of gear drives. Having identified the ... -
A Closed-Form Solution to the Crank Position Corresponding to the Maximum Velocity of the Slider in a Centric Slider-Crank Mechanism
(The American Society of Mechanical Engineers (ASME), 2006)This paper revisits a classical problem in kinematics, specifically determination of the crank position corresponding to the maximum velocity of the slider in the centric slider-crank mechanism. ... -
Tooth Influence on Flexural and Torsional Flexibility, and Model Tooth Number Prediction for Optimum Dynamic Simulation of Wide-Faced Spur Gears
(The American Society of Mechanical Engineers (ASME), 2006)Refined dynamic analyses of gear pairs, including precise tooth contact description, often lead to unreasonable simulation requirements. Therefore, numerous models employ simplifications, such as ... -
Shape and Size Synthesis of Compliant Mechanisms Using Wide Curve Theory
(The American Society of Mechanical Engineers (ASME), 2006)A wide curve is a curve with width or cross section. This paper introduces a shape and size synthesis method for compliant mechanisms based on free-form wide curve theory. With the proposed ... -
A Study of the Duality Between Planar Kinematics and Statics
(The American Society of Mechanical Engineers (ASME), 2006)This paper provides geometric insight into the correlation between basic concepts underlying the kinematics of planar mechanisms and the statics of simple trusses. The implication of this ... -
Shape Optimization of Flexible Robotic Manipulators
(The American Society of Mechanical Engineers (ASME), 2006)In this work, the problem of shape optimization of flexible robotic manipulators of circular cross sections is studied. Two different manipulators are considered—a manipulator with revolute joint ... -
Optimal Contact Force Distribution for Multi-Limbed Robots
(The American Society of Mechanical Engineers (ASME), 2006)One of the inherent problems of multi-limbed mobile robotic systems is the problem of multi-contact force distribution; the contact forces and moments at the feet required to support it and ... -
Finding Dead-Point Positions of Planar Pin-Connected Linkages Through Graph Theoretical Duality Principle
(The American Society of Mechanical Engineers (ASME), 2006)The paper brings another view on detecting the dead-point positions of an arbitrary planar pin-connected linkage by employing the duality principle of graph theory. It is first shown how the ... -
Linear Property of the Screw Surface of the Spatial RPRP Linkage
(The American Society of Mechanical Engineers (ASME), 2006)This paper investigates the screw surface of the RPRP linkage, an overconstrained linkage with mobility one. The screw surface is a ruled surface containing screws for displacing the coupler ... -
Using CAD Variation Geometry and Analytic Approach for Solving Kinematics of a Novel 3-SPU/3-SPU Parallel Manipulator
(The American Society of Mechanical Engineers (ASME), 2006)A novel 3-SPU/3-SPU parallel manipulator with 3-DOF is presented. The CAD variation geometric approach and analytic approach are used for solving its workspace, position, velocity, and acceleration. ... -
An Instant Center Approach Toward the Conceptual Design of Compliant Mechanisms
(The American Society of Mechanical Engineers (ASME), 2006)As with conventional mechanisms, the conceptual design of compliant mechanisms is a blend of art and science. It is generally performed using one of two methods: topology optimization or the ...