Now showing items 61-80 of 928
-
Misalignment Compensation for Full Human-Exoskeleton Kinematic Compatibility: State of the Art and Evaluation
(American Society of Mechanical Engineers (ASME), 2019)The use of exoskeletons by the elderly, disabled people, heavy labor workers, and soldiers can have great social and economic benefit. However, limitations in usability are impeding the widespread adoption of exoskeletal ... -
Hamilton's Principle for Material and Nonmaterial Control Volumes Using Lagrangian and Eulerian Description of Motion
(American Society of Mechanical Engineers (ASME), 2019)The standard form of Hamilton's principle is only applicable to material control volumes. There exist specialized formulations of Hamilton's principle that are tailored to nonmaterial (open) control volumes. In case of ... -
A Review on Fluid-Induced Flag Vibrations
(American Society of Mechanical Engineers (ASME), 2019)Fluid-induced flag vibrations provide unattended, efficient, low-cost, and scalable solutions for energy harvesting to power distributed wireless sensor nodes, heat transfer enhancement in channel flow, and mixing enhancement ... -
Driving Robotic Exoskeletons Using Cable-Based Transmissions: A Qualitative Analysis and Overview
(American Society of Mechanical Engineers (ASME), 2019)Wearable robotics is a field receiving increasing attention from the scientific community. It has great potential to improve rehabilitation process or increase the human capabilities but faces a number of challenges. On ... -
A Review of Available Methods for the Assessment of Fluid Added Mass, Damping, and Stiffness With an Emphasis on Hydraulic Turbines
(American Society of Mechanical Engineers (ASME), 2019)Fluid added mass, damping, and stiffness are highly relevant parameters to consider when evaluating the dynamic response of a submerged structure in a fluid. The prediction of these parameters for hydraulic turbines has ... -
Adjoint Methods as Design Tools in Thermoacoustics
(American Society of Mechanical Engineers (ASME), 2019)In a thermoacoustic system, such as a flame in a combustor, heat release oscillations couple with acoustic pressure oscillations. If the heat release is sufficiently in phase with the pressure, these oscillations can grow, ... -
Discrete Energy-Conservation Properties in the Numerical Simulation of the Navier–Stokes Equations
(American Society of Mechanical Engineers (ASME), 2019)Nonlinear convective terms pose the most critical issues when a numerical discretization of the Navier–Stokes equations is performed, especially at high Reynolds numbers. They are indeed responsible for a nonlinear instability ... -
Wave-Packet Models for Jet Dynamics and Sound Radiation
(American Society of Mechanical Engineers (ASME), 2019)Organized structures in turbulent jets can be modeled as wavepackets. These are characterized by spatial amplification and decay, both of which are related to stability mechanisms, and they are coherent over several jet ... -
A Practical Review on Linear and Nonlinear Global Approaches to Flow Instabilities
(American Society of Mechanical Engineers (ASME), 2019)This paper aims at reviewing linear and nonlinear approaches to study the stability of fluid flows. We provide a concise but self-contained exposition of the main concepts and specific numerical methods designed for global ... -
Wave-Packet Models for Jet Dynamics and Sound Radiation
(The American Society of Mechanical Engineers (ASME), 2019)Organized structures in turbulent jets can be modeled as wavepackets. These are characterized by spatial amplification and decay, both of which are related to stability mechanisms, and they are coherent over several jet ... -
Adjoint Methods as Design Tools in Thermoacoustics
(The American Society of Mechanical Engineers (ASME), 2019)In a thermoacoustic system, such as a flame in a combustor, heat release oscillations couple with acoustic pressure oscillations. If the heat release is sufficiently in phase with the pressure, these oscillations can grow, ... -
Discrete Energy-Conservation Properties in the Numerical Simulation of the Navier–Stokes Equations
(The American Society of Mechanical Engineers (ASME), 2019)Nonlinear convective terms pose the most critical issues when a numerical discretization of the Navier–Stokes equations is performed, especially at high Reynolds numbers. They are indeed responsible for a nonlinear instability ... -
Hamilton's Principle for Material and Nonmaterial Control Volumes Using Lagrangian and Eulerian Description of Motion
(The American Society of Mechanical Engineers (ASME), 2019)The standard form of Hamilton's principle is only applicable to material control volumes. There exist specialized formulations of Hamilton's principle that are tailored to nonmaterial (open) control volumes. In case of ... -
A Review on Fluid-Induced Flag Vibrations
(The American Society of Mechanical Engineers (ASME), 2019)Fluid-induced flag vibrations provide unattended, efficient, low-cost, and scalable solutions for energy harvesting to power distributed wireless sensor nodes, heat transfer enhancement in channel flow, and mixing enhancement ... -
A Practical Review on Linear and Nonlinear Global Approaches to Flow Instabilities
(The American Society of Mechanical Engineers (ASME), 2019)This paper aims at reviewing linear and nonlinear approaches to study the stability of fluid flows. We provide a concise but self-contained exposition of the main concepts and specific numerical methods designed for global ... -
Driving Robotic Exoskeletons Using Cable-Based Transmissions: A Qualitative Analysis and Overview
(The American Society of Mechanical Engineers (ASME), 2019)Wearable robotics is a field receiving increasing attention from the scientific community. It has great potential to improve rehabilitation process or increase the human capabilities but faces a number of challenges. On ... -
Misalignment Compensation for Full Human-Exoskeleton Kinematic Compatibility: State of the Art and Evaluation
(The American Society of Mechanical Engineers (ASME), 2019)The use of exoskeletons by the elderly, disabled people, heavy labor workers, and soldiers can have great social and economic benefit. However, limitations in usability are impeding the widespread adoption of exoskeletal ... -
A Review of Available Methods for the Assessment of Fluid Added Mass, Damping, and Stiffness With an Emphasis on Hydraulic Turbines
(The American Society of Mechanical Engineers (ASME), 2019)Fluid added mass, damping, and stiffness are highly relevant parameters to consider when evaluating the dynamic response of a submerged structure in a fluid. The prediction of these parameters for hydraulic turbines has ... -
Discussion of “Measuring and Understanding Contact Area at the Nanoscale: A Review” (Jacobs, T. D. B., and Ashlie Martini, A., 2017, ASME Appl. Mech. Rev., 69(6), p. 060802)
(The American Society of Mechanical Engineers (ASME), 2017)Jacobs and Martini (JM) give a nice review of direct measurement methods (in situ electron microscopy), as well as indirect methods (which are based on contact resistance, contact stiffness, lateral forces, and topography) ... -
Closure to “Discussion of ‘A Review of the Rotordynamic Thermally Induced Synchronous Instability (Morton) Effect’” (Tong, X., Palazzolo, A., and Suh, J., 2017, ASME Appl. Mech. Rev., 69(6), p. 060801)
(The American Society of Mechanical Engineers (ASME), 2017)