Journal of Mechanical Design: Recent submissions
Now showing items 1241-1260 of 6182
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A Fully Compliant Homokinetic Coupling
(The American Society of Mechanical Engineers (ASME), 2018)This paper introduces a homokinetic coupling, a constant velocity universal joint (CV joint), which is fully compliant and potentially monolithic. The proposed compliant design can accommodate high misalignment angles ... -
Passive, Consultative, and Coconstructive Methods: A Framework to Facilitate Community Participation in Design for Development
(The American Society of Mechanical Engineers (ASME), 2018)The complexity of design for development (D4D), humanitarian engineering (HE), and similar projects emerges from multiple sources, including the overarching requirement to address complex sociotechnical problems by effectively ... -
Acquisition Cost-Torque Capacity-Reliability Modeling for Spur Gears
(The American Society of Mechanical Engineers (ASME), 2018)This paper studies the influence of macrogeometry and material type of spur gears on their torque capacity, reliability, and acquisition cost. The developed model indicates how costly it is to enhance the torque capacity ... -
Effect of Ramp Angle on the Anti-Loosening Ability of Wedge Self-Locking Nuts Under Vibration
(The American Society of Mechanical Engineers (ASME), 2018)Recently, the wedge self-locking nut, a special anti-loosening product, is receiving more attention because of its excellent reliability in preventing loosening failure under vibration conditions. The key characteristic ... -
Design of Three New Cam-Based Constant-Force Mechanisms
(The American Society of Mechanical Engineers (ASME), 2018)Constant-force mechanisms are designed to keep a constant or nearly constant input force along a prescribed stroke of the mechanism. The implementation of this kind of mechanisms has been approached in literature using ... -
Cluster-Based Optimization of Cellular Materials and Structures for Crashworthiness
(The American Society of Mechanical Engineers (ASME), 2018)The objective of this work is to establish a cluster-based optimization method for the optimal design of cellular materials and structures for crashworthiness, which involves the use of nonlinear, dynamic finite element ... -
Low Order Static Load Distribution Model for Ball Screw Mechanisms Including Effects of Lateral Deformation and Geometric Errors
(The American Society of Mechanical Engineers (ASME), 2018)Accurate modeling of static load distribution of balls is very useful for proper design and sizing of ball screw mechanisms (BSMs); it is also a starting point in modeling the dynamics, e.g., friction behavior, of BSMs. ... -
Geometric Method of Spatial Linkages Synthesis for Function Generation With Three Finite Positions
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents a geometric method as a unified synthesis process of function generation for spatial linkages. The synthesis method utilizes the mapping relationship between spatial kinematic geometric model and two-plane ... -
Parametric Design of Scalable Mechanisms for Additive Manufacturing
(The American Society of Mechanical Engineers (ASME), 2018)Additive manufacturing allows a direct fabrication of any sophisticated mechanism when the clearance of each joint is sufficiently large to compensate the fabrication error, which frees the designers of cumbersome assembly ... -
A Zero-Spin Design Methodology for Transmission Components Generatrix in Traction Drive Continuously Variable Transmissions
(The American Society of Mechanical Engineers (ASME), 2018)With the advantages of high torque and low noise, traction drive continuously variable transmissions (TDCVTs) have a promising application in future vehicles. However, their efficiency is limited by spin losses caused by ... -
What is a Prototype? What are the Roles of Prototypes in Companies?
(The American Society of Mechanical Engineers (ASME), 2018)Prototyping is an essential part of product development in companies, and yet it is one of the least explored areas of design practice. There are limited ethnographic studies conducted within companies, specifically around ... -
Design and Experimental Assessment of Variable-Geometry Dies for Polymer Extrusion
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents a design methodology and experimental assessment of variable-geometry dies that enable the extrusion of plastic parts with a nonconstant cross section. These shape-changing dies can produce complex ... -
Confidence-Driven Design Optimization Using Gaussian Process Metamodeling With Insufficient Data
(The American Society of Mechanical Engineers (ASME), 2018)To reduce the computational cost, surrogate models have been widely used to replace expensive simulations in design under uncertainty. However, most existing methods may introduce significant errors when the training data ... -
Computational Design of Gradient Paths in Additively Manufactured Functionally Graded Materials
(The American Society of Mechanical Engineers (ASME), 2018)Additive manufacturing (AM) has enabled the creation of a near infinite set of functionally graded materials (FGMs). One limitation on the manufacturability and usefulness of these materials is the presence of undesirable ... -
Learning From the Past: Uncovering Design Process Models Using an Enriched Process Mining
(The American Society of Mechanical Engineers (ASME), 2018)Design documents and design project footprints accumulated by corporate information technology systems have increasingly become valuable sources of evidence for design information and knowledge management. Identification ... -
Differential Gear Bending Stresses in the Presence of Misalignments and Run-out
(The American Society of Mechanical Engineers (ASME), 2018)Automotive differential gears are usually operating at very low speed and high load conditions and hence are usually designed to be protected against the root bending fatigue failure. Depending on application requirements ... -
Topology Optimization of Structures Made of Discrete Geometric Components With Different Materials
(The American Society of Mechanical Engineers (ASME), 2018)We present a new method for the simultaneous topology optimization and material selection of structures made by the union of discrete geometric components, where each component is made of one of multiple available materials. ... -
Robustness and Real Options for Vehicle Design and Investment Decisions Under Gas Price and Regulatory Uncertainties
(The American Society of Mechanical Engineers (ASME), 2018)Manufacturers must decide when to invest and launch a new vehicle segment or how to redesign vehicles existing segment under market uncertainties. We present an optimization framework for redesigning or investing in future ... -
Gravity-Insensitive Flexure Pivot Oscillators
(The American Society of Mechanical Engineers (ASME), 2018)Classical mechanical watch plain bearing pivots have frictional losses limiting the quality factor of the hairspring-balance wheel oscillator. Replacement by flexure pivots leads to a drastic reduction in friction and an ... -
Design of an Innovative Three-Dimensional Print Head Based on Twin-Screw Extrusion
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents the embodiment design of an interchangeable print head based on twin-screw extrusion, specially developed to allow in-process multimaterial mixing and direct deposition of the product to structure ...