搜索结果: 1-15 共查到“工学 oscillation”相关记录16条 . 查询时间(0.194 秒)
Analysis of Laser Power Threshold for Self Oscillation in Thermo-Optically Excited Doubly Supported MEMS Beams
MEMS Limit cycle Hopf bifurcation Numerical continuation Resonator
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2015/8/26
An optically thin MEMS beam suspended above a substrate and illuminated with a CW laser forms an interferometer, coupling out-of-plane deflection of the beam to absorption within it. In turn, laser ab...
FLOW INDUCED CYLINDER OSCILLATION AND ITS CONTROL WITH HIGH ORDER SPECTRAL DIFFERENCE METHOD ON DEFORMABLE MESH
SPECTRAL DIFFERENCE METHOD DEFORMABLE MESH
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2015/7/3
In the recent work by the authors, high order spectral difference (SD) method has been formulated in a framework with dynamic deformable meshes, and been demonstrated to preserve the design accuracy o...
Oscillation of the Measurement Accuracy of the Center Location of an Ellipse on a Digital Image
Experiment Accuracy Measurement Digital Image Target
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2014/9/9
Circular targets are often utilized in photogrammetry and a circle on a plane is projected as an ellipse onto an oblique image. This paper reports an experiment conducted to investigate whether the me...
Extracavity Parametric Oscillation with Continuous and/or Discontinuous Frequency Tuning
Optical Parametric Oscillator Fabry-Perot Etalon Analog-Digital Converter
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2013/1/30
A continuously or/and discontinuously tunable LiNbO3 Optical Parametric Oscillator (OPO) with the spectral range of 1.42 - 4.24 um and shifting of 0…12 nm is created and investigated. The OPO resonato...
Periodic oscillation and fine structure of wedge-induced oblique detonation waves
Oblique detonation wave Wedge Periodic oscillation·Fine structure
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2012/2/28
An oblique detonation wave for a Mach 7 inlet flow over a long enough wedge of 30 turning angle is simulated numerically using Euler equation and one-step rection model. The fifth-order WENO scheme is...
Self- sustained Oscillation Pulsed Air Blowing System for Energy Saving
energy saving pulse blowing self-sustained oscillation pneumatic power
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2011/8/3
Currently, many studies have been made for years on dimensions of pneumatic nozzle, which influence the flow characteristic of blowing system. For the purpose of outputting the same blowing force, the...
低频振荡研究现状与展望（Status quo and Perspective of Low-Frequency Oscillation Research）
低频振荡 机理 分析方法 抑制措施
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2010/8/17
低频振荡现象是目前电力系统研究关注的热点之一。文章从机理解释、分析方法和抑制措施三方面综述了近年来该领域取得的突破与进展，并指出应对一些用弱阻尼机理无法解释的振荡现象，特别是“超低频振荡”现象给予足够的重视。
南方电网低频振荡问题及PSS参数分析（Analysis on Low Frequency Oscillation and PSS Parameters in China Southern Power Grid）
南方电网 小干扰稳定 电力系统稳定器 特征值灵敏度
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2010/8/17
采用SSAP电力系统小干扰稳定分析软件，对南方电网2010年典型运行方式下的区间低频振荡模式进行了详细的分析。通过在适当机组加装PSS，并根据灵敏度提供的信息对PSS参数进行优化调整后，系统稳定性得以显著提高。
木材干燥的振荡流热管换热器设计与试验（Design and Experiment on Oscillation Heat-pipe Heat Exchanger of Wood Drying）
木材 余热回收 高湿废气
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2009/9/25
设计了自激振荡流热管换热器余热回收系统并进行了试验，考察了湿空气和操作参数对热回收效率的影响。试验结果表明，自激振荡流热管换热器能够满足高湿废气余热回收的要求，在给定的操作条件下，系统的热回收效率高于18%。
Effects of Parasitic Elements on Oscillation Frequency of OTA-C Sinusoidal Oscillators
Parasitic Elements Oscillation Frequency OTA-C Sinusoidal Oscillators
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2009/7/27
An oscillator circuit which incorporates Operational Transconductance Amplifiers is presented. The circuit is designed using three OTAs and two grounded capacitors. The frequency of oscillation is tun...
Oscillation Modes of Random Lasing Depending on Scatterers' Distribution Profile in 2D System
Random Lasing Anderson Localization Rhodamine-6G
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2009/6/1
We report on a selective modal oscillation dynamics of Random Lasing (RL) by using a simple two-dimensional RL model. This model consists of two terms; two-dimensional scattering model, and rate equat...
Flip-Over and Oscillation Phenomena of Fiber Orientation Ellipsoids in Bi-Disperse Suspension Flows
evolution of orientation ellipsoid bi-disperse fiber suspension flip-over
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2009/5/8
Fiber suspension flow and fiber orientation through a parallel plate channel were numerically simulated for mono- and bi-disperse fiber suspensions in order to study the mechanism of the evolution of...
Yarn Tension and Oscillation in the Process of Warp Knitting
Yarn Tension Oscillation
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2009/2/5
Yarn Tension and Oscillation in the Process of Warp Knitting。
An investigation of thermally stratified turbulent channel flow with temperature oscillation on the bottom wall by large eddy simulation
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2007/7/28
专著信息
书名
An investigation of thermally stratified turbulent channel flow with temperature oscillation on the bottom wall by large eddy simulation
语种
英文
撰写或编译
作者
Dong Y. H.,Lu X. Y.,Zhuang L. X
第一作者单位
出...
Recording of dust particle oscillation path inside electric curtain by laser diode apparatus
laser diode particle path visualisation electric curtain
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2011/4/28
The contribution describes recording of a single dust particle oscillation path inside the electric curtain by a new type of a laser diode apparatus. Visualisation of the particle path trajectory usin...