Applied Mechanics Reviews: Recent submissions
Now showing items 61-80 of 921
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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) -
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) -
A Review of In Situ Mechanical Characterization of Polymer Nanocomposites: Prospect and Challenges
(The American Society of Mechanical Engineers (ASME), 2017)Mechanics at the nanoscale is radically different from mechanics at the macroscale. Atomistic simulations have revealed this important fact, and experiments are being performed to support it. Specifically, in situ testing ... -
Open System Tribology in the Wheel–Rail Contact—A Literature Review
(The American Society of Mechanical Engineers (ASME), 2017)The tiny contact zone (approximately 1 cm2) where steel wheel meets steel rail is fundamental to rail transport. This work is a comprehensive presentation of recent research in wheel–rail contact tribology. It stresses ... -
A Review of Elastic–Plastic Contact Mechanics
(The American Society of Mechanical Engineers (ASME), 2017)In typical metallic contacts, stresses are very high and result in yielding of the material. Therefore, the study of contacts which include simultaneous elastic and plastic deformation is of critical importance. This work ... -
Measuring and Understanding Contact Area at the Nanoscale: A Review
(The American Society of Mechanical Engineers (ASME), 2017)The size of the mechanical contact between nanoscale bodies that are pressed together under load has implications for adhesion, friction, and electrical and thermal transport at small scales. Yet, because the contact is ... -
Exploiting Microstructural Instabilities in Solids and Structures: From Metamaterials to Structural Transitions
(The American Society of Mechanical Engineers (ASME), 2017)Instabilities in solids and structures are ubiquitous across all length and time scales, and engineering design principles have commonly aimed at preventing instability. However, over the past two decades, engineering ... -
Special Issue of Applied Mechanics Reviews in Collaboration With the Journal of Tribology
(The American Society of Mechanical Engineers (ASME), 2017)