Now showing items 1721-1740 of 6182

    • Kinetostatic Modeling of Fully Compliant Bistable Mechanisms Using Timoshenko Beam Constraint Model 

      Chen, Guimin; Ma, Fulei (The American Society of Mechanical Engineers (ASME), 2015)
      Fully compliant bistable mechanisms (FCBMs) have numerous applications in both microand macroscale devices, but the nonlinearities associated with the deflections of the flexible members and the kinetostatic behaviors have ...
    • Efficient Filtering in Topology Optimization via B Splines1 

      Wang, Mingming; Qian, Xiaoping (The American Society of Mechanical Engineers (ASME), 2015)
      This paper presents a Bspline based approach for topology optimization of threedimensional (3D) problems where the density representation is based on Bsplines. Compared with the usual density filter in topology optimization, ...
    • Redundancy Allocation for Reliability Design of Engineering Systems With Failure Interactions 

      Wang, Jing; Li, Mian (The American Society of Mechanical Engineers (ASME), 2015)
      Optimal allocation of redundancies is one of the most important ways of improving system reliability. Generally, in these redundancy allocation problems, it is assumed that failures of components are independent. However, ...
    • Integrated Mechanical and Thermodynamic Optimization of an Engine Linkage Using a Multi Objective Genetic Algorithm 

      Sullivan, Thomas A.; van de ven, James D.; Northrop, William F.; McCabe, Kieran (The American Society of Mechanical Engineers (ASME), 2015)
      In order to improve the thermodynamic efficiency of an internal combustion engine (ICE), a StephensonIII sixbar linkage is optimized to serve as a replacement for the traditional slider–crank. Novel techniques are presented ...
    • An Integrated Performance Measure Approach for System Reliability Analysis 

      Wang, Zequn; Wang, Pingfeng (The American Society of Mechanical Engineers (ASME), 2015)
      This paper presents a new adaptive sampling approach based on a novel integrated performance measure approach, referred to as “iPMA,â€‌ for system reliability assessment with multiple dependent failure events. The developed ...
    • Stochastic Multidisciplinary Analysis Under Epistemic Uncertainty 

      Liang, Chen; Mahadevan, Sankaran; Sankararaman, Shankar (The American Society of Mechanical Engineers (ASME), 2015)
      This paper presents a probabilistic framework to include the effects of both aleatory and epistemic uncertainty sources in coupled multidisciplinary analysis (MDA). A likelihoodbased decoupling approach has been previously ...
    • Trust Region Based Mode Pursuing Sampling Method for Global Optimization of High Dimensional Design Problems 

      Cheng, George H.; Younis, Adel; Haji Hajikolaei, Kambiz; Gary Wang, G. (The American Society of Mechanical Engineers (ASME), 2015)
      Mode pursuing sampling (MPS) was developed as a global optimization algorithm for design optimization problems involving expensive black box functions. MPS has been found to be effective and efficient for design problems ...
    • Origami Based Self Folding Structure Design and Fabrication Using Projection Based Stereolithography 

      Deng, Dongping; Chen, Yong (The American Society of Mechanical Engineers (ASME), 2015)
      Selffolding structures have unique capability such as reconfiguration during their usage. Such capability can be beneficial for a wide variety of applications including biomedical and electronics products. In this paper, ...
    • Statistical Surrogate Formulations for Simulation Based Design Optimization 

      Talgorn, Bastien; Le Digabel, Sأ©bastien; Kokkolaras, Michael (The American Society of Mechanical Engineers (ASME), 2015)
      Typical challenges of simulationbased design optimization include unavailable gradients and unreliable approximations thereof, expensive function evaluations, numerical noise, multiple local optima, and the failure of the ...
    • Planar Flexible Hinges With Curvilinear Axis Segments for Mechanisms of In Plane and Out of Plane Operation 

      Lobontiu, Nicolae (The American Society of Mechanical Engineers (ASME), 2015)
      The new design class and related analytic compliancematrix model of planar flexible hinges with curvilinear longitudinal axes is presented here. The proposed approach enhances and generalizes the existing design and modeling ...
    • New Deployable Structures Based on an Elastic Origami Model 

      Saito, Kazuya; Tsukahara, Akira; Okabe, Yoji (The American Society of Mechanical Engineers (ASME), 2015)
      Traditionally, origamibased structures are designed on the premise of “rigid folding,â€‌ However, every act of folding and unfolding is accompanied by elastic deformations in real structures. This study focuses on these ...
    • MEMS Based Conjugate Surfaces Flexure Hinge 

      Verotti, Matteo; Crescenzi, Rocco; Balucani, Marco; Belfiore, Nicola P. (The American Society of Mechanical Engineers (ASME), 2015)
      This paper presents a new concept flexure hinge for MEMS applications and reveals how to design, construct, and experimentally test. This hinge combines a curved beam, as a flexible element, and a pair of conjugate surfaces, ...
    • Empirical Studies of Designer Thinking: Past, Present, and Future 

      Dinar, Mahmoud; Shah, Jami J.; Cagan, Jonathan; Leifer, Larry; Linsey, Julie; Smith, Steven M.; Hernandez, Noe Vargas (The American Society of Mechanical Engineers (ASME), 2015)
      Understanding how designers think is core to advancing design methods, tools, and outcomes. Engineering researchers have effectively turned to cognitive science approaches to studying the engineering design process. Empirical ...
    • A New Hybrid Algorithm for Multi Objective Robust Optimization With Interval Uncertainty 

      Cheng, Shuo; Zhou, Jianhua; Li, Mian (The American Society of Mechanical Engineers (ASME), 2015)
      Uncertainty is a very critical but inevitable issue in design optimization. Compared to singleobjective optimization problems, the situation becomes more difficult for multiobjective engineering optimization problems under ...
    • Vehicle Suspension Identification Via Algorithmic Computation of State and Design Sensitivities 

      Callejo, Alfonso; de Jalأ³n, Javier Garcأ­a (The American Society of Mechanical Engineers (ASME), 2015)
      It is common in mechanical simulation to not know the value of key system parameters. When the simulation is very sensitive to those design parameters and practical or budget limitations prevent the user from measuring the ...
    • Multi Objective Robust Optimization Using a Postoptimality Sensitivity Analysis Technique: Application to a Wind Turbine Design 

      Wang, Weijun; Caro, Stأ©phane; Bennis, Fouad; Soto, Ricardo; Crawford, Broderick (The American Society of Mechanical Engineers (ASME), 2015)
      Toward a multiobjective optimization robust problem, the variations in design variables (DVs) and design environment parameters (DEPs) include the small variations and the large variations. The former have small effect on ...
    • Design of Compliant Bamboo Poles for Carrying Loads 

      Potwar, Karna; Ackerman, Jeffrey; Seipel, Justin (The American Society of Mechanical Engineers (ASME), 2015)
      Carriage of heavy loads is common in developing countries and can impart large repetitive forces on the body that could lead to musculoskeletal fatigue and injury. Compliant bamboo poles have been used to carry heavy loads ...
    • Error Metrics and the Sequential Refinement of Kriging Metamodels 

      Romero, David A.; Marin, Veronica E.; Amon, Cristina H. (The American Society of Mechanical Engineers (ASME), 2015)
      Metamodels, or surrogate models, have been proposed in the literature to reduce the resources (time/cost) invested in the design and optimization of engineering systems whose behavior is modeled using complex computer ...
    • Structural Efficiency Measures for Sections Under Asymmetric Bending 

      Buckney, Neil; Pirrera, Alberto; Weaver, Paul M. (The American Society of Mechanical Engineers (ASME), 2015)
      Shape factors evaluate the efficiency of material usage in a structure. Previously, they have been developed for simple bending but, in practice, beams often have a more complicated bending response. Therefore, shape factors ...
    • Fatigue Design Load Identification Using Engineering Data Analytics 

      Bae, Ha; Ando, Hiroaki; Nam, Sangjeong; Kim, Sangkyum; Ha, Christopher (The American Society of Mechanical Engineers (ASME), 2015)
      Selecting an appropriate concept design in the early stage of the product development process is crucial for successful machine development. As one of the important design requirements, a structural design needs to validate ...