Results 21 to 30 of about 1,329,156 (311)
A choice reaction time analysis of spatial frequency discrimination [PDF]
, 1989 Simple reaction time to the onset of sinewave gratings was measured as a function of spatial frequency in two observers. These results are compared to the choice reaction time required for the observer to correctly discriminate the spatial frequency of ...
Greenlee, Mark W., Breitmeyer, B. G.
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A two-stage model updating method for the linear parts of structures with local nonlinearities
Frontiers in Materials, 2023 Finite element model updating provides an important supplement for finite element modelling. However, some studies have shown that if the tested structure involves local nonlinearities due to damages, material properties and large deformation et al., it ...
Hao Zhang +9 more
doaj +1 more source
Modal Analysis of Specific Composite Sandwich Structures [PDF]
Engineering and Technology Journal, 2023 Composite sandwich structures are gaining attention due to their inherent properties, such as lightweight, low density, and high strength. The forced vibration response of these structures was studied experimentally to investigate the effects of external
Mustafa Al-Khazraji +2 more
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International Journal of Automotive and Mechanical Engineering, 2021 The rotational frequency response function (RFRF) plays a crucial role in increasing the accuracy of the calculated results of the frequency-based substructuring method. However, RFRFs are often omitted due to the difficulties in the measurement process and limitations of the equipment.
Mirza, WIIWI +4 more
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On the robustness of the average power ratios in damping estimation: application in the structural health monitoring of composites beams [PDF]
, 2010 In composites structures, cracking, delamination will cause changes in the measured dynamic response of structure and so on experimentally modal parameters.
J. Morlier +4 more
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Frequency Response Function Measurement on Simplified Disc Brake Model
Journal of Mechanical Engineering, 2018 The paper describes role of non-proportional damping in flutter type instability, demonstrated on simplified disc brake model. The discrete two degrees of freedom system is considered to imply damping induced instability through a system eigenvalues ...
Juraj Úradníček +2 more
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The Basics of Time-Domain-Based Milling Stability Prediction Using Frequency Response Function
Journal of Manufacturing and Materials Processing, 2020 This study presents the fundamentals of the usage of frequency response functions (FRF) directly in time-domain-based methods. The methodology intends to combine the advantages of frequency- and time-domain-based techniques to determine the stability of ...
Zoltan Dombovari +2 more
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IMPLEMENTATION OF FREQUENCY RESPONSE FUNCTION ON TAPPER BEARING MAINTENANCE
Jurnal Ilmiah SINERGI, 2019 Bearing acts as a pad that supports a shaft to rotate without excessive friction, hold the radial load and maintain the motion towards the left and right shafts (Thrust Load) when turning together.
Ari Susanto +4 more
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METHOD OF SIMULTANEOUS OPTIMIZATION OF RADIO DEVICES PERFORMANCE IN FREQUENCY AND TIME DOMAINS
Российский технологический журнал, 2018 A new method of searching for optimal transfer functions of radio circuits and devices was developed. This method allows optimizing performance in the frequency and time domain simultaneously. These tasks cannot be solved by analytical methods.
A. V. Smirnov
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Nihon Kikai Gakkai ronbunshu, 2022 Several standards or manuals are available for the test methods of damping capacity of damping materials such as composites or laminated damping steel sheets; however, few documents focus on lightly damped materials like metallic alloys.
Yuki SASAGE +3 more
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