Hypotrochoid spiral optimization approach for sizing and layout optimization of truss structures with multiple frequency constraints
Sign Up to like & getrecommendations! Published in 2018 at "Engineering with Computers"
DOI: 10.1007/s00366-018-0675-6
Abstract: The primary aim of this article is to present a new improved version of the spiral optimization algorithm (SPO) for shape and size optimization of truss structures under multiple frequency constraints. In the proposed method,… read more here.
Keywords: spiral optimization; multiple frequency; optimization truss; optimization ... See more keywords
A fast parametric estimation approach of signals with multiple frequency harmonics
Sign Up to like & getrecommendations! Published in 2017 at "Electric Power Systems Research"
DOI: 10.1016/j.epsr.2016.11.023
Abstract: Abstract A new fast algebraic estimation scheme in time domain is proposed for amplitude, frequency and phase parameters in electric power system signals with multiple frequency harmonics. Time domain integral operators are properly used in… read more here.
Keywords: estimation; signals multiple; approach; harmonics ... See more keywords
Investigation on multiple-frequency synchronization experiment of vibration system with dual-rotor actuation
Sign Up to like & getrecommendations! Published in 2022 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2021.108261
Abstract: Abstract As the first-stage solid-control equipment of purifying drilling fluid, vibrating screen excited with identical frequency usually leads to the blocking of screen mesh, which will affect production efficiency of subsequent equipment. Thus, to solve… read more here.
Keywords: frequency; vibration system; synchronization; multiple frequency ... See more keywords
Hybrid membrane resonators for multiple frequency asymmetric absorption and reflection in large waveguide
Sign Up to like & getrecommendations! Published in 2017 at "Applied Physics Letters"
DOI: 10.1063/1.4973821
Abstract: We report that Hybrid membrane resonators (HMRs) made of a decorated membrane resonator backed by a shallow cavity can function as Helmholtz resonators (HRs) when mounted on the sidewall of a clear waveguide for air… read more here.
Keywords: absorption; hybrid membrane; membrane resonators; frequency ... See more keywords
System Design and Calibration for Wideband Channel Sounding With Multiple Frequency Bands
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Access"
DOI: 10.1109/access.2017.2649679
Abstract: This paper presents a multiple frequency bands-switching scheme for wideband channel sounding, which is able to extend the overall sounding bandwidth without changing operation bandwidth of the hardware. It is especially suitable for low mobility… read more here.
Keywords: frequency; multiple frequency; frequency bands; wideband channel ... See more keywords
Generation of Multiple-Frequency Optical Millimeter-Wave Signal With Optical Carrier Suppression and No Optical Filter
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2016.2647200
Abstract: We propose and experimentally demonstrate the generation of a multiple-frequency optical millimeter-wave (mm-wave) signal an without optical filter at the transmitter side. Forty, 80, and 120-GHz multiple-frequency optical mm-wave signals are generated simultaneously in our… read more here.
Keywords: generation multiple; frequency; optical millimeter; millimeter wave ... See more keywords
Reduced-Order $H_\infty$ Filter Design for Delta Operator Systems Over Multiple Frequency Intervals
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Automatic Control"
DOI: 10.1109/tac.2020.2968962
Abstract: In this article, a reduced-order $H_\infty$ filter is designed for a delta operator system over multiple frequency intervals. By nonsmooth optimization techniques, subdifferential analysis is generalized in delta domain for minimizing the maximum value of… read more here.
Keywords: tex math; multiple frequency; inline formula; reduced order ... See more keywords
Multiple Frequency Modulation Components Detection and Decomposition for Rotary Machine Fault Diagnosis
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2021.3134334
Abstract: For rotary machines, the measured vibration signals contain multiple frequency modulation components with much machine health information. Decomposing vibration signals of rotary machines into a series of sub-signal components with physical meaning is of great… read more here.
Keywords: machine; frequency; modulation components; frequency modulation ... See more keywords
A Multiple Frequency Taylor Model-Based Dynamic Synchrophasor Estimation Algorithm
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Smart Grid"
DOI: 10.1109/tsg.2019.2913446
Abstract: To enhance the accuracy of phasor estimation under dynamic conditions, the fundamental phasor of the power signal is expressed by a multiple frequency Taylor model (MFTM) with several sub-phasors expanded by the Taylor series. The… read more here.
Keywords: frequency taylor; based dynamic; taylor; estimation ... See more keywords
A Time Variational Method for the Approximate Solution of Nonlinear Systems Undergoing Multiple-Frequency Excitations
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Computational and Nonlinear Dynamics"
DOI: 10.1115/1.4045944
Abstract: The main objective of this paper is to use the time variational method (TVM) for the nonlinear response analysis of mechanical systems subjected to multiple-frequency excitations. The system response, which is composed of fractional multiples… read more here.
Keywords: frequency excitations; frequency; time; method ... See more keywords