Browsing by Advisor "Ganguli, Ranjan"
Now showing items 120 of 26

Aeroelastic Analysis And Optimization Of Composite Helicopter Rotor With Uncertain Material Properties
(20110406)Incorporating uncertainties in the aeroelastic analysis increases the confidence levels of computational predictions and reduces the need for validation with experimental or flight test data. Helicopter rotor blades, which ... 
Analysis of Rotating Beam Problems using Meshless Methods and Finite Element Methods
(20180301)A partial differential equation in space and time represents the physics of rotating beams. Mostly, the numerical solution of such an equation is an available option as analytical solutions are not feasible even for a ... 
Closedform Solutions For Rotating And Nonrotating Beams : An Inverse Problem Approach
(20121204)Rotating EulerBernoulli beams and nonhomogeneous Timoshenko beams are widely used to model important engineering structures. Hence the vibration analyses of these beams are an important problem from a structural dynamics ... 
Delamination Modeling and Detection in Composite Structures
(20171212)Composite laminated structures are prone to delamination. Rotorcraft flexbeams, apart from many other aerospace primary load carrying members are made up of composite laminated structures. A delaminated primary load carrying ... 
Design and Development of Piezoelectric Stack Actuated Trailing Edge Flap for Helicopter Vibration Reduction
(20180109)This research investigates onblade partial span active plain trailing edge flaps (TEFs)with an aim to alleviate the helicopter vibrations. Among all the available smart materials, piezoelectric stack actuator(PEA)has shown ... 
A Design Procedure for Flapping Wings Comprising Piezoelectric Actuators, Driver Circuit, and a Compliant Mechanism
(20180605)Flappingwing micro air vehicle (MAV) is an emerging microrobotic technology, which has several challenges toward its practical implementation. Inspired by insect flight, researchers have adopted biomimicking approach ... 
Determination Of Isopectral Rotating And NonRotating Beams
(20160427)In this work, rotating beams which are isospectral to nonrotating beams are studied. A rotating beam is isospectral to a nonrotating beam if both the beams have the same spectral properties i.e; both the beams have the ... 
Efficient Trim In Helicopter Aeroelastic Analysis
(20110406)Helicopter aeroelastic analysis is highly complex and multidisciplinary in nature; the flexibility of main rotor blades is coupled with aerodynamics, dynamics and control systems. A key component of an aeroelastic analysis ... 
Evolutionary Optimization For Vibration Analysis And Control
(20140303)Problems in the control and identification of structural dynamic systems can lead to multimodal optimization problems, which are difficult to solve using classical gradient based methods. In this work, optimization problems ... 
Inverse Problems in Free Vibration Analysis of Rotating and NonRotating Beams and its Application to Random Eigenvalue Characterization
(20180219)Rotating and nonrotating beams are widely used to model important engineering structures. Hence, the vibration analyses of these beams are an important problem from a structural dynamics point of view. Depending on the ... 
Ionic Polymer Metal Composite Actuators for Insect Scale Flapping Wing Micro Air Vehicle
Flapping wing micro air vehicles (MAV) have broad applications such as exploration in hazardous environment, reconnaissance, search and rescue. Ionic polymer metal composites (IPMC) have emerged as a promising material ... 
Modelling And Analysis Of Fish Inspired Ionic Polymer Metal Composite Flapping Fins
(20140303)Ionic polymer metal composites (IPMC) are a new class of smart materials that have attractive characteristics such as muscle like softness, low voltage and power consumption, and good performance in aqueous environments. ... 
A Neural Network Approach To Rotorcraft Parameter Estimation
(20090703)The present work focuses on the system identification method of aerodynamic parameter estimation which is used to calculate the stability and control derivatives required for aircraft flight mechanics. A new rotorcraft ... 
On the analysis of axially loaded EulerBernoulli beam using Galerkin, Fourier transform, and Lie symmetry approach
The beam with axial load is one of the fundamental models in the field of physics and engineering. The applications of this model span from a guitar string to the rotating blade of a helicopter. It has an important role ... 
On The Effect Of Material Uncertainty And Matrix Cracks On Smart Composite Plate
(20170222)Recent developments show the applications of smart structure in different engineering fields. Smart structures can be used for shape and vibration control, structural health monitoring etc. Smart materials can be integrated ... 
Optimization of a higherorder sandwich composite beam under uncertainties
Optimization under uncertainties of structures is a challenging field due to the requirements of high computational resources. The typical approaches include reliabilitybased design optimization (RBDO) and robust design ... 
Piezoceramic Dynamic Hysteresis Effects On Helicopter Vibration Control Using Multiple TrailingEdge Flaps
(20090714)Helicopters suffer from severe vibration levels compared to fixedwing aircraft. The main source of vibration in a helicopter is the main rotor which operates in a highly unsteady aerodynamic environment. Active vibration ...