Mechanical Engineering: Recent submissions
Now showing items 41-60 of 465
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Contact force distribution using centroidal momentum feedback for quadruped locomotion
(IEEE, 2023)This paper proposes a method to distribute contact forces to eliminate undesired torso orientation fluctuations and regulate heading during dynamic quadruped trot-walking motion. The proposed method makes use of centroidal ... -
Effect of processing parameters on the phase transformation of a high temperature copper-based shape memory alloy
(Springer, 2023-11)In the present study, the influence of the processing parameters on the transformation temperatures and microstructural evolution in a copper-based shape memory alloy was investigated. Five times remelting in identical ... -
Size dependent change of mean square displacement in gold nanocrystals: A molecular dynamics simulation
(Wiley, 2023-11-01)Thermally activated atomic vibrations significantly decrease the x-ray diffraction intensities of nanocrystalline powders. Hence their quantification is critical for accurate structural characterization of small nanocrystals ... -
Enhancing the performance of Piezoelectric Energy Harvester under electrostatic actuation using a robust metaheuristic algorithm
(Elsevier, 2023-02)This study proposes a novel shape optimization methodology based on evolutionary algorithms to maximize the harvesting energy from piezoelectric energy harvester stimulated by the β-emitted radioisotope. The parametric ... -
Centroidal momentum observer: Towards whole-body robust control of legged robots subject to uncertainties
(IEEE, 2022)This paper aims to provide robust dynamic motion control and eliminate parameter uncertainty in single-legged robots with a centroidal momentum-based control algorithm. In order to ensure the continuity of the movement ... -
On the strain rate sensitivity of a TRIP assisted high entropy alloy
(Elsevier, 2023-02-15)In the present work, the strain rate sensitivity is investigated in a novel high entropy alloy with transformation-induced plasticity (TRIP) effect. Herein, it is aimed to reflect the effect of phase constitution on the ... -
Evaluating the accuracy of rietveld analysis for diffraction data from nanocrystalline powders
(International Union of Crystallography, 2022-08)N/A -
Error bounds of pair distribution function analysis in characterization of thermal disorder in nanocrystals
(Int Union Crystallography, 2022-08)N/A -
Investigation of pair distribution function method on structural analysis of nanocrystalline powders
(Int Union Crystallography, 2022-08)N/A -
A novel design framework for generating functionally graded multi-morphology lattices via hybrid optimization and blending methods
(Elsevier, 2023-05-25)Owing to its excellent mechanical properties, triply periodic minimum surfaces (TPMS) lattice structures have recently gained more interest in engineering applications. The superior properties of these structures make it ... -
Design and control of a novel variable stiffness series elastic actuator
(IEEE, 2023-06)This article expounds the design and control of a new variable stiffness series elastic actuator (VSSEA). It is established by employing a modular mechanical design approach that allows us to effectively optimize the ... -
An experimental study on the frost formation over a flat plate: Effect of frosting on heat transfer
(Elsevier, 2023-06-01)Frost accumulation on cooled surfaces generates thermal barrier between the surface and air. Apart from the frost layer thickness, the thermal properties of the frost also affect its heat transfer characteristics. In this ... -
Combining tensile test results with atomistic predictions of elastic modulus of graphene/polyamide-6,6 nanocomposites
(Elsevier, 2023-06)In this work, we combined tensile test results with atomistic simulations to investigate the effect of filler parameters including distribution, stacking, loading and lateral graphene size on elastic moduli of graphene/PA-6,6 ... -
Experimental and numerical modal characterization for additively manufactured triply periodic minimal surface lattice structures: Comparison between free-size and homogenization-based optimization methods
(Wiley, 2023-06)Homogenization-based topology optimization (HMTO) is one of the most extensively used grading methods to generate functionally graded lattice structures (FGLs). However, it requires a precharacterization of the lattices, ... -
Towards crutch-free 3-D walking support with the lower body exoskeleton Co-Ex: Self-balancing squatting experiments
(Springer, 2022)In this paper, we succinctly present the hardware properties and capabilities of the lower body exoskeleton Co-Ex, which was developed to attain self-balancing and crutch-free walking support for those experiencing ambulatory ... -
HandMECH—Mechanical hand prosthesis: Conceptual design of the hand compartment
(Springer, 2022)In this study, conceptual design of the hand compartment of a body-powered hand prosthesis, HandMECH, is presented. HandMECH is a body-powered prosthesis and the hand compartment is designed according to human finger size ... -
HandMECH—Mechanical hand prosthesis: Conceptual design of a two degrees-of-freedom compliant wrist
(Springer, 2022)A compliant wrist joint is important for positioning the hand in different positions to perform various daily tasks. It is also important that the wrist is able to achieve sufficient range of motion (RoM). The RoM is ... -
Advanced surface enhancement of a high strength aluminum alloy through friction stir processing
(Springer, 2022)The current study investigates the effect of severe plastic deformation (SPD) on the mechanical behavior of a commercial aluminum alloy (Al7075). In-process cooled friction stir processing (FSP) was used to enhance the ... -
Graphene as a piezoresistive material in strain sensing applications
(MDPI, 2022-01-12)High accuracy measurement of mechanical strain is critical and broadly practiced in several application areas including structural health monitoring, industrial process control, manufacturing, avionics and the automotive ... -
On the low-cycle fatigue behavior of a multi-phase high entropy alloy with enhanced plasticity
(Elsevier, 2023-08)A multi-phase non-equiatomic FeCrNiMnCo high entropy alloy (HEA) was fabricated using vacuum induction melting. Thermo-mechanical treatments consisting of cold rolling and annealing at 750 °C and 850 °C were employed to ...
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