Search
Search Results
-
Current Amplitude–Frequency Spectrum as an Identifier of the Traction Operating Conditions
AbstractAnalysis of the harmonic components’ time progress in normal-operation and short-circuit modes is performed by the example of the...
-
Design and Analysis of a Novel Horizontal Large-Amplitude and Low-Frequency Vibration Isolator
PurposeThis paper proposes a novel dual four-rod horizontal large-amplitude quasi-zero stiffness (QZS) vibration isolator based on the singular...
-
BDS Multi-frequency Soil Moisture Retrieval Considering the Amplitude Stability of Reflected Signal
With the successful networking of BeiDou Navigation Satellite System (BDS), BDS B1I/B2I/B3I signals enriched GNSS-IR data sources. GNSS-IR technology...
-
An improved model of magnetorheological elastomer of frequency, magnetic field, and amplitude responses
Magnetorheological elastomers (MRE) are smart materials that have recently attracted considerable interest. The mechanical properties of MREs change...
-
Effects of Frequency and Amplitude of Local Dynamic Hump and Inlet Turbulence Intensity on Flow Separation Control in Low-Pressure Turbine
Dynamic hump is an active control method, which has been proved to be able to suppress laminar flow separation on the suction surface of high-loaded...
-
Methodology for Constructing Regulatory Boundaries for the Amplitude-Frequency Characteristics of Vehicles
A method for constructing regulatory boundaries for the amplitude-frequency characteristics of sprung vehicles is presented using the parameters of...
-
Active Notch RC-Filters of the Fourth Order with an Adjustable Delay Band and Uneven Amplitude–Frequency Response
Abstract —Potential structural schemes of notch filters (NFs) of the fourth order are considered. Equations for the coefficients of their transfer...
-
Estimation of optimal parameters yielding target amplitude–frequency response in nonlinear vibrating systems by a generalised cluster-based algorithm
Optimisation procedures for nonlinear vibrating systems are made cumbersome due to the fact that the regimes of periodic response are not known...
-
Stabilizing Electrolysis Cells with Oscillating Currents: Amplitude, Frequency, and Current Efficiency
The metal pad instability (MPI) imposes a minimum electrolyte layer thickness for stable operation of aluminium (Al) electrolysis cells, which limits...
-
Design and Characteristic Analysis of Ultrasonic Mass Transfer Device for Flotation
Ultrasonic mass transfer device is the core component of ultrasonic interventional flotation. Based on the piezoelectric driving principle and the...
-
Radio Frequency 4-Channel 0-360° Range Digitally Controlled Phase Shifter for Telecommunication Systems with Amplitude Modulation of Many Components
AbstractThe radio frequency (RF) 4-channel 0–360° range digitally controlled phase shifter is proposed in this article. It is a part of the 4-channel...
-
The Research of Micro-vibration Nonlinear Characteristic Produced by Spacecraft Mechanical Momentum Wheel
Micro-vibration produced by momentum wheel is the main disturbance source for spacecraft, with obvious nonlinear characteristics. The researching and...
-
Determination method of characteristic frequency/wavelength of metro corrugation based on the adhesion coefficient
In order to propose a method to determine the characteristic frequency/wavelength of rail corrugation from the perspective of wheel-rail micro...
-
SISL Antennas Based on Characteristic Mode Analysis
The characteristic mode analysis (CMA), since its evolution in the early 1960s, has vigorously gained momentum recently in the antenna community. The...
-
Research and Application of “Time-, Frequency- and Amplitude-Preserved” Seismic Response Mechanisms of Short-Range Wavefields in Ultra-Deep Carbonate Reservoirs
The northwestern Sichuan Basin has high structural complexity, and the Lower Permian Qixia Formation is seen with low seismic structural imaging...
-
Resonance Infrasound Jet-Edge Generator and Its Amplitude–Frequency Characteristics
The influence of the geometric and regime parameters of a resonance infrared jet-edge generator on the formation, in its resonance tube, of a sound...
-
Dynamic modeling considering time-varying contact pairs and parameterized defects of deep groove ball bearings for its vibration characteristic analysis
Bearing vibration characteristic analysis based on dynamic analytical model is of importance for identifying faults of bearing in mechanical systems....
-
Analysis of Amplitude-Frequency Response of Acousto-Optic Delay Line
AbstractA mathematical model of the signal formation process at the output of acousto-optic delay line (AODL) with direct detection has been...
-
Influence of oil film nonlinearity on identification accuracy of dynamic characteristic coefficient of heavy-duty sliding bearing
Because the oil film of sliding bearing shows significant nonlinearity under heavy load condition, its influence cannot be ignored in the process of...
-
Quantum Dynamics Effects on Amplitude-Frequency Response of Superharmonic Resonance of Second-Order of Electrostatically Actuated NEMS Circular Plates
This work deals with the effects of Casimir and/or van der Waals forces (quantum dynamics phenomena) on the amplitude-frequency response of the...