Research

Structural Dynamics and Smart Rotor Blades for Helicopters

A major focus of Professor Afagh’s research program in the recent years has been the development of a mathematical model for a helicopter smart rotor blade with a high degree of fidelity. The model will be used to investigate the possibility of attenuating undesirable dynamic responses associated with operation of helicopter rotor blades. A continuous […]

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Optimization of Actuator Placement

A consistent limitation of existing approaches to optimize the placement of actuators in flexible smart structures to control vibrations is that they require the derivation of a closed-form fitness function for optimization, thus reducing and limiting the complexity of problems that can be solved. In contrast, Professor Afagh and his coworkers have proposed an optimization […]

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Control of Rotor Blade Sailing Phenomenon (BSP)

With some modification the actuator placement optimization method described earlier can be applied to determine an optimized configuration/placement to integrate MFCs into active rotor blades. A feasibility study of open-loop control with integral active twist actuation which included different strategies for controlling BSP, recently concluded by Professor Afagh and his research group, has shown remarkable […]

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Dynamics of 3rd Body effects in Highly Elliptic and Critically Inclined Orbits

Satellite coverage of the Arctic region is becoming more and more important as there has been an increase in the demand for communications and Earth observation duties, which cannot be performed by geostationary satellites. Canada, in particular, has a vested interest in increasing the ability for remote settlements in the north to communicate with the […]

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Instability Analysis of Viscoelastic Plates Using Boundary Element Analysis

A realistic stability analysis of a specific structural member should consider its function in relation to the rest of the structure as a whole, the loading history and the material behaviour. The deformation response of many materials depends to varying degrees on time-dependent as well as time-independent processes. While common structural materials such as steel […]

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Lab Photos

     

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