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Impact of Wall Impedance Phase Angle on Indoor Sound Field and Reverberation Parameters Derived from Room Impulse Response [PDF]
Archives of Acoustics, 2022 Accurate definition of boundary conditions is of crucial importance for room acoustic predictions because the wall impedance phase angle can affect the sound field in rooms and acoustic parameters applied to assess a room reverberation.
Mirosław Meissner, Tomasz G. Zieliński
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Insights on Oscillations and Impulses in Variable Impedance Control
, 2022 Operational-space impedance control allows to assign a mass-damper-spring (MDS) behavior to the end effector of a robotic manipulator. This aids resilience when interactions with the environment or humans are expected. While changing the virtual mass is not always practicable since it requires using precise force/torque sensors, varying the stiffness ...
Simonini, Giorgio +5 more
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Phase noise in distributed oscillators [PDF]
, 2002 The phase noise of a distributed oscillator is evaluated very simply by identifying an effective capacitance equal to the total capacitance distributed along the transmission lines. The contributions of the various passive and active noise sources to the
Hajimiri, A., White, C. J.
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A Study on Frequency Response Functions in Pavement Engineering
The Baltic Journal of Road and Bridge Engineering, 2023 Mechanical impedance (MI) defines the ability of a system to vibrate as a consequence of force application. In the recent years, the correlation of this parameter with tire-road noise and other characteristics has gained certain attention.
Filippo G. Pratico +3 more
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Time-Response Functions of Mechanical Networks with Inerters and Causality
, 2017 This paper derives the causal time-response functions of three-parameter mechanical networks that have been reported in the literature and involve the inerter-a two-node element in which the force-output is proportional to the relative acceleration of ...
Makris, Nicos
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Influence of the line characterization on the transient analysis of nonlinearly loaded lossy transmission lines [PDF]
, 1994 The analysis of nonlinearly terminated lossy transmission lines is addressed in this paper with a modified version of a method belonging to the class of mixed techniques, which characterize the line in the frequency domain and solve the nonlinear problem
Canavero, Flavio +2 more
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Parameter Estimation of a Grid-Tied Inverter Using In Situ Pseudo-Random Perturbation Sources
Energies, 2023 Inverters are playing an increasingly important role in the electrical utility grid due to the proliferation of renewable energy sources. Obtaining inverter models with accurate parameters is, therefore, essential for grid studies and design.
Ian Paul Gerber +2 more
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Hypervelocity Richtmyer–Meshkov instability [PDF]
, 1997 The Richtmyer-Meshkov instability is numerically investigated for strong shocks, i.e., for hypervelocity cases. To model the interaction of the flow with non-equilibrium chemical effects typical of high-enthalpy flows, the Lighthill-Freeman ideal ...
Meiron, Daniel I., Samtaney, Ravi
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Response of Drone Electronic Systems to a Standardized Lightning Pulse
Energies, 2021 This paper presents the results of experimental tests of the impulse response of selected, essential components of a drone. A standardized lightning pulse that is often used during immunity tests of electronic devices in the aviation industry was applied.
Paweł Szczupak, Tomasz Kossowski
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The problem of offset in acoustic pulse reflectometry [PDF]
, 2007 Acoustic pulse reflectometry has become established as a useful non-invasive technique for measuring a variety of duct properties. A sound pulse is injected into the duct under investigation and the resultant reflections are recorded.
Li, Aijun, Sharp, David B.
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