Now showing items 1621-1640 of 6182

    • Synthesis of Quasi Constant Transmission Ratio Planar Linkages 

      Figliolini, Giorgio; Pennestrأ¬, Ettore (The American Society of Mechanical Engineers (ASME), 2015)
      The present paper deals with the formulation of novel closedform algorithms for the kinematic synthesis of quasiconstant transmission ratio planar fourbar and slider–crank linkages. The algorithms are specific for both ...
    • Investigating the Role of Geometric Dimensioning and Tolerancing in Additive Manufacturing 

      Ameta, Gaurav; Lipman, Robert; Moylan, Shawn; Witherell, Paul (The American Society of Mechanical Engineers (ASME), 2015)
      Additive manufacturing (AM) has increasingly gained attention in the last decade as a versatile manufacturing process for customized products. AM processes can create complex, freeform shapes while also introducing features, ...
    • Level Set Topology Optimization of Printed Active Composites 

      Maute, Kurt; Tkachuk, Anton; Wu, Jiangtao; Jerry Qi, H.; Ding, Zhen; Dunn, Martin L. (The American Society of Mechanical Engineers (ASME), 2015)
      Multimaterial polymer printers allow the placement of different material phases within a composite, where some or all of the materials may exhibit an active response. Utilizing the shape memory (SM) behavior of at least ...
    • Special Issue: Design for Additive Manufacturing: A Paradigm Shift in Design, Fabrication, and Qualification 

      Rosen, David W.; Seepersad, Carolyn C.; Simpson, Timothy W.; Williams, Christopher B. (The American Society of Mechanical Engineers (ASME), 2015)
      Mechanical engineers design a wide variety of structures, devices, products, and systems. Through manufacturing classes and handson design/build projects, students learn all about the challenges of fabrication, the costs ...
    • On the Geometric Accuracy of RepRap Open Source Three Dimensional Printer 

      Lanzotti, Antonio; Del Giudice, Domenico Maria; Lepore, Antonio; Staiano, Gabriele; Martorelli, Massimo (The American Society of Mechanical Engineers (ASME), 2015)
      In the field of additive manufacturing (AM) processes, there is a significant lack of scientific data on the performance of opensource 3D printers in relation to process parameter values. The purpose of this paper is to ...
    • A Pareto Optimal Approach to Multimaterial Topology Optimization 

      Mirzendehdel, Amir M.; Suresh, Krishnan (The American Society of Mechanical Engineers (ASME), 2015)
      As additive manufacturing (AM) expands into multimaterial, there is a demand for efficient multimaterial topology optimization (MMTO), where one must simultaneously optimize the topology and the distribution of various ...
    • Taxation and Transparency: How Policy Decisions Impact Product Quality and Sustainability 

      Hoffenson, Steven; Sأ¶derberg, Rikard (The American Society of Mechanical Engineers (ASME), 2015)
      Product markets can be modeled as complex systems that account for a diverse set of stakeholders and interactions. Decisions by all of the stakeholders in these systems can affect the design of new products, not only from ...
    • Redundancy Allocation Optimization for Multistate Systems With Failure Interactions Using Semi Markov Process 

      Wang, Jing; Li, Mian (The American Society of Mechanical Engineers (ASME), 2015)
      Failure interactions and multiple states are two common phenomena in engineering systems. However, most of the redundancy allocation problems assume binary states and ignore failure interactions, which will cause inaccurate ...
    • Time Dependent System Reliability Analysis Using Random Field Discretization 

      Hu, Zhen; Mahadevan, Sankaran (The American Society of Mechanical Engineers (ASME), 2015)
      This paper proposes a novel and efficient methodology for timedependent system reliability analysis of systems with multiple limitstate functions of random variables, stochastic processes, and time. Since there are ...
    • Exploring the Role of Interaction Effects in Visual Conjoint Analysis 

      Sylcott, Brian; Michalek, Jeremy J.; Cagan, Jonathan (The American Society of Mechanical Engineers (ASME), 2015)
      In conjoint analysis, interaction effects characterize how preference for the level of one product attribute is dependent on the level of another attribute. When interaction effects are negligible, a main effects fractional ...
    • Actual Tooth Contact Analysis of Straight Bevel Gears 

      Kolivand, M.; Ligata, H.; Steyer, G.; Benedict, D. K.; Chen, J. (The American Society of Mechanical Engineers (ASME), 2015)
      Theoretically, spherical involutes are used as one of the base topographies for straight bevel gears. Actual bevel gears, however, have deviations from their intended topographies due to manufacturing errors, heat treatment ...
    • A Utility Copula Approach for Preference Functions in Engineering Design 

      Abbas, Ali E.; Sun, Zhengwei (The American Society of Mechanical Engineers (ASME), 2015)
      Utility copula functions (Abbas, 2009, “Multiattribute Utility Copulas,â€‌ Oper. Res., 57(6), pp. 1367–1383) construct multiattribute utility surfaces by combining individual vonNeumann Morgenstern utility assessments ...
    • Quantification of Classical Gestalt Principles in Two Dimensional Product Representations 

      Lugo, Josأ© E.; Schmiedeler, James P.; Batill, Stephen M.; Carlson, Laura (The American Society of Mechanical Engineers (ASME), 2015)
      Gestalt principles have previously served as qualitative guidelines for good visual design in art, architecture, and product design. This paper introduces a formal method to quantify classical Gestalt principles (proximity, ...
    • An Approach for Determination of Basic Machine Tool Settings From Blank Data in Face Hobbed and Face Milled Hypoid Gears 

      Gonzalez; Fuentes, Alfonso; Ruiz (The American Society of Mechanical Engineers (ASME), 2015)
      The conditions of meshing and contact in hypoid gear drives depend substantially on the machinetool settings to be applied. Determination of gear geometry is the first step in the design process of a hypoid gear drive. An ...
    • The Design of Optimal Lattice Structures Manufactured by Maypole Braiding 

      Gurley, Austin; Beale, David; Broughton, Royall; Branscomb, David (The American Society of Mechanical Engineers (ASME), 2015)
      Beginning with the maypole braiding process and its inherent constraints, we develop a design methodology for the realization of optimal braided composite lattice structures. This process requires novel geometric, mechanical, ...
    • A Spatial Random Process Based Multidisciplinary System Uncertainty Propagation Approach With Model Uncertainty 

      Jiang, Zhen; Li, Wei; Apley, Daniel W.; Chen, Wei (The American Society of Mechanical Engineers (ASME), 2015)
      The performance of a multidisciplinary system is inevitably affected by various sources of uncertainties, usually categorized as aleatory (e.g., input variability) or epistemic (e.g., model uncertainty) uncertainty. In the ...
    • Eliminating Underconstraint in Double Parallelogram Flexure Mechanisms 

      Panas, Robert M.; Hopkins, Jonathan B. (The American Society of Mechanical Engineers (ASME), 2015)
      We present an improved flexure linkage design for removing underconstraint in a double parallelogram (DP) linear flexural mechanism. This new linkage alleviates many of the problems associated with current linkage design ...
    • A Family of Dual Segment Compliant Joints Suitable for Use as Surrogate Folds 

      Delimont, Isaac L.; Magleby, Spencer P.; Howell, Larry L. (The American Society of Mechanical Engineers (ASME), 2015)
      Origamiinspired design is an emerging field capable of producing compact and efficient designs. The object of a surrogate fold is to provide a foldlike motion in a nonpaper material without undergoing yielding. Compliant ...
    • Dynamics and Trajectory Planning for Reconfigurable Space Multibody Robots 

      Hu, Quan; Zhang, Jingrui (The American Society of Mechanical Engineers (ASME), 2015)
      A freefloating space robot equipped with multiple reconfigurable manipulators is designed and investigated in this paper. Lockable passive cylindrical joints (PCJs) are utilized to make the manipulator have the ability of ...
    • Design of Multiple Operating Degrees of Freedom Planetary Gear Trains With Variable Structure 

      Peng, Zeng; Hu, Ji; Xie, Tian; Liu, Chun (The American Society of Mechanical Engineers (ASME), 2015)
      To obtain multiple speed ratios, a synthesis methodology of planetary gear trains (PGTs) with multiple operating degreesoffreedom (DOFs) is proposed based on the variable structure method. Variable structure of PGT is ...