Journal of Mechanical Design: Recent submissions
Now showing items 2961-2980 of 6182
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Conditions for Self-Locking in Planetary Gear Trains
(The American Society of Mechanical Engineers (ASME), 2007)The objective of the present work is to determine the conditions that have to be satisfied for a planetary gear train of one degree of freedom to be self-locking. All planetary gear trains ... -
The Establishment of the Canonical Perimeter Topological Graph of Kinematic Chains and Isomorphism Identification
(The American Society of Mechanical Engineers (ASME), 2007)Some new concepts, such as the perimeter loop, the maximum perimeter degree-sequence, and the perimeter topological graph, are first presented in this paper, and the method for obtaining the ... -
A New Approach to Shape Optimization for Closed Path Synthesis of Planar Mechanisms
(The American Society of Mechanical Engineers (ASME), 2007)A method for the synthesis of four-bar mechanisms to generate closed paths through shape optimization is herein introduced. The objective function is not based on Fourier descriptors, but rather ... -
Synthesis of Bistable Compliant Four-Bar Mechanisms Using Polynomial Homotopy
(The American Society of Mechanical Engineers (ASME), 2007)In this paper we formulate and solve the synthesis equations for a compliant four-bar linkage with three specified equilibrium configurations in the plane. The kinematic synthesis equations as ... -
Development of an Integrated System for the Automated Design of a Gerotor Oil Pump
(The American Society of Mechanical Engineers (ASME), 2007)A gerotor pump is suitable for oil hydraulics of machine tools, automotive engines, compressors, construction, and other various applications. In particular, the pump is an essential machine ... -
Design and Analysis of a Spherical Constant Velocity Coupling Mechanism
(The American Society of Mechanical Engineers (ASME), 2007)Many constant velocity (CV) couplings have been invented in the last decade. First they are summarized including the classic double Cardan mechanism. A newly developed spherical CV coupling ... -
Synthesis of Path Generating Compliant Mechanisms Using Initially Curved Frame Elements
(The American Society of Mechanical Engineers (ASME), 2007)Initially curved frame elements are used in this paper within an optimization-based framework for the systematic synthesis of compliant mechanisms (CMs) that can trace nonlinear paths. These ... -
Design of Compliant Mechanisms for Minimizing Input Power in Dynamic Applications
(The American Society of Mechanical Engineers (ASME), 2007)In this paper, we investigate power flow in compliant mechanisms that are employed in dynamic applications. More specifically, we identify various elements of the energy storage and transfer ... -
A Way to Improve the Accuracy of Hobbed Involute Gears
(The American Society of Mechanical Engineers (ASME), 2007)Involute gears are widely used in the design of machines and mechanisms. Performance of gear transmissions, e.g., performance of automobile transmissions, strongly depends upon the accuracy of ... -
Micro/Macro or Link-Integrated Micro-actuator Manipulation—A Kinematics and Dynamics Perspective
(The American Society of Mechanical Engineers (ASME), 2007)Smart (active) materials based actuators, hereinafter called micro-actuators, have been shown to be well suited for the elimination of high harmonics in joint and/or end-effector motions of robot ... -
Design Methodology for Microelectromechanical Systems. Case Study: Torsional Scanner Mirror
(The American Society of Mechanical Engineers (ASME), 2007)Future optical microsystems, such as microelectromechanical system (MEMS) scanners and micromirrors, will extend the resolution and sensitivity offered by their predecessors. These systems face the ... -
Function Generation With Finitely Separated Precision Points Using Geometric Constraint Programming
(The American Society of Mechanical Engineers (ASME), 2007)This paper extends geometric constraint programming (GCP) to function generation problems involving large numbers of finitely separated precision points and complex mechanisms. In parametric design ... -
Computer Aided Synthesis of Piecewise Rational Motions for Planar 2R and 3R Robot Arms
(The American Society of Mechanical Engineers (ASME), 2007)This paper deals with the problem of synthesizing piecewise rational motions of an object that satisfies kinematic constraints imposed by a planar robot arm with revolute joints. This paper ... -
Geometric Analysis and Synthesis of the Metamorphic Robotic Hand
(The American Society of Mechanical Engineers (ASME), 2007)This paper presents a novel robotic hand with a metamorphic palm which changes the traditional structure of a robotic hand. Based on this new hand structure, the paper investigates motion of ... -
A Method to Ensure Preference Consistency in Multi-Attribute Selection Decisions
(The American Society of Mechanical Engineers (ASME), 2007)A number of approaches for multi-attribute selection decisions exist, each with certain advantages and disadvantages. One method that has recently been developed, called the hypothetical equivalents ... -
Design Concept Generation: A Hierarchical Coevolutionary Approach
(The American Society of Mechanical Engineers (ASME), 2007)As design problems become more complex and design lead time more pressing, designers need effective support tools to expand their design space exploration. In this paper, a hierarchical ... -
Design, Simulation, and Fabrication of a Quadstable Monolithic Mechanism With X- and Y-Directional Bistable Curved Beams
(The American Society of Mechanical Engineers (ASME), 2007)This paper demonstrates a novel quadstable monolithic mechanism (QsMM), which provides four stable equilibrium positions within its planar operation range. The QsMM has been realized from the use ... -
Mechanical Design of Robotic In Vivo Wheeled Mobility
(The American Society of Mechanical Engineers (ASME), 2007)A new approach to laparoscopic surgery involves placing a robot completely within the patient. These in vivo robots are then able to provide visual feedback and task assistance that would ... -
An Explicit Method for Determining the Force-Moment Capabilities of Redundantly Actuated Planar Parallel Manipulators
(The American Society of Mechanical Engineers (ASME), 2007)A new explicit methodology for the determination of the force-moment capabilities of nonredundantly and redundantly actuated planar parallel manipulators (PPMs) is presented. This methodology is ... -
Kinematic Analysis of Spatial Mechanical Systems Using Exponential Rotation Matrices
(The American Society of Mechanical Engineers (ASME), 2007)The mathematical properties associated with the exponential rotation matrices are reviewed. By means of two typical mechanism examples, it is demonstrated that these properties constitute a versatile ...