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Methods of Engine Degradation Assessment in the Time-Scale Domain
Engine Degradation Assessment Time-Scale Domain
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2014/10/24
This dissertation addresses health monitoring of aircraft engines. Two methods are offered for engine degradation assessment: (1) a direct method to isolate degradation of engine components in-flight,...
A Study on Small Scale Intermittncy Using Direct Numerical Simulation of Turbulence
A Study on Small Scale Intermittency Direct Numerical Simulation Turbulence
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2014/10/24
Theory of turbulence at small scales plays a fundamental role in mo deling turbulence and in retrieving information from physical measurements of turbulent flows. A systematic metho dology based on di...
Pressure Control of a Large-scale Hydraulic Power Unit Using π Bridge Network
two stage pressure relief valve π bridge resistor network flow-pressure characteristics
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2011/8/4
The steady state and dynamic characteristics of pressure output of a hydraulic power unit are important to the hydraulic system behavior. Because of the compact structure, the B-half bridge resistance...
Self-Tuning and Conventional Control of an Industrial Scale Packed Distillation Column
Self-Tuning Control Conventional Control Packed Distillation Column
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2009/10/15
The performance of self-tuning and a variety of conventional control strategies are examined when applied to the overhead product composition control of a packed distillation column. These control str...
Multi-scale modelling of surface topography in single-point diamond turning
Numerical techniques Mmulti-scale model Mmesoplasticity
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2010/2/10
Purpose: A multi-scale model is proposed to explain the effect of material induced vibration and the quantitative relation between cutting force and the surface quality from dislocations, grain orient...