Viswamurthy, SR, Rao, AK, Ganguli, R
This study investigates the effect of piezoceramic actuator hysteresis on helicopter vibration control using dual trailing-edge flaps. Piezoceramic stack actuators are promising candidates for...
Damage detection in beams using spatial Fourier analysis and neural networks (2007)
Pawar, PM, Reddy, KV, Ganguli, R
This study investigates the effect of damage on beams with fixed boundary conditions using Fourier analysis of mode shapes in the spatial domain. A finite element model is used to obtain the mode...
Fourier analysis of mode shapes of damaged beams (2007)
This paper investigates the effect of damage on beams with fixed boundary conditions using Fourier analysis of the mode shapes in spatial domain. A finite element model is used to obtain the mode...
Murugan, MS, Suresh, S, Ganguli, R, Mani, V
This paper aims to obtain the optimal composite box-beam design for a helicopter rotor blade. The crosssectional dimensions and the ply angles of the box beam are considered as design variables. The...
Murugan, MS, Suresh, S, Ganguli, R, Mani, V
This paper aims to obtain the optimal composite box-beam design for a helicopter rotor blade. The crosssectional dimensions and the ply angles of the box beam are considered as design variables. The...
Damage detection in beams using spatial Fourier analysis and neural networks (2007)
Pawar, PM, Reddy, KV, Ganguli, R
This study investigates the effect of damage on beams with fixed boundary conditions using Fourier analysis of mode shapes in the spatial domain. A finite element model is used to obtain the mode...
Helicopter rotor health monitoring- a review (2007)
A review of the literature on helicopter rotor system health monitoring is conducted in this paper. An introduction is provided to the work on rotor track and balance and commercial health and usage...
Viswamurthy, SR, Rao, AK, Ganguli, R
This study investigates the effect of piezoceramic actuator hysteresis on helicopter vibration control using dual trailing-edge flaps. Piezoceramic stack actuators are promising candidates for...
Helicopter rotor health monitoring- a review (2007)
A review of the literature on helicopter rotor system health monitoring is conducted in this paper. An introduction is provided to the work on rotor track and balance and commercial health and usage...
Wave Propogation Characteristics of Rotating Uniform Euler-Bernoulli Beams (2006)
Vinod, KG, Gopalakrishnan, S, Ganguli, R
A spectral finite element formulation for a rotating beam subjected to small duration impact is presented in this paper. The spatial variation in centrifugal force is modeled in an average sense....
Aeroelastic optimization of a helicopter rotor using orthogonal array-based metamodels (2006)
Aeroelastic optimization of a four-bladed, soft-inplane hingeless rotor is performed to reduce hub loads and blade root loads with blade stiffness design variables. An aeroelastic analysis based on...
Single-crystal piezoceramic actuation for dynamic stall suppression (2006)
$PZN-8\%PT{\langle}111{\rangle}$ —a new single-crystal piezoceramic is explored for its potential to torsionally actuate the existing structure utilizing the induced shear mechanism of...
Single-crystal piezoceramic actuation for dynamic stall suppression (2006)
$PZN-8\%PT{\langle}111{\rangle}$ —a new single-crystal piezoceramic is explored for its potential to torsionally actuate the existing structure utilizing the induced shear mechanism of...
Wave Propogation Characteristics of Rotating Uniform Euler-Bernoulli Beams (2006)
Vinod, KG, Gopalakrishnan, S, Ganguli, R
A spectral finite element formulation for a rotating beam subjected to small duration impact is presented in this paper. The spatial variation in centrifugal force is modeled in an average sense....
Aeroelastic optimization of a helicopter rotor using orthogonal array-based metamodels (2006)
Aeroelastic optimization of a four-bladed, soft-inplane hingeless rotor is performed to reduce hub loads and blade root loads with blade stiffness design variables. An aeroelastic analysis based on...
Modeling multi-layer matrix cracking in thin walled composite rotor blades (2005)
Helicopter rotor blades are made of fiber-reinforced composite materials that are prone to matrix cracking. Matrix cracking precedes more serious damage mechanisms such as delamination and fiber...
Modeling multi-layer matrix cracking in thin walled composite rotor blades (2005)
Helicopter rotor blades are made of fiber-reinforced composite materials that are prone to matrix cracking. Matrix cracking precedes more serious damage mechanisms such as delamination and fiber...
Ganguli, R., Persson, L., Palmer, I., Smallwood, R., Black, R.A., Qwarnstrom, E.
NF-{kappa}B, a transcription factor central to inflammatory regulation during development of atherosclerosis, is activated by soluble mediators and through biomechanical inputs such as flow-mediated...
Ganguli, R., Persson, L., Palmer, I., Smallwood, R., Black, R.A., Qwarnstrom, E.
NF-{kappa}B, a transcription factor central to inflammatory regulation during development of atherosclerosis, is activated by soluble mediators and through biomechanical inputs such as flow-mediated...
Ganguli, R., Persson, L., Palmer, I., Smallwood, R., Black, R.A., Qwarnstrom, E.
NF-{kappa}B, a transcription factor central to inflammatory regulation during development of atherosclerosis, is activated by soluble mediators and through biomechanical inputs such as flow-mediated...
Trend shift detection is posed as a two-part problem: filtering of the gas turbine measurement deltas followed by the use of edge detection algorithms. Measurement deltas are deviations in engine gas...
Application of Fuzzy Logic for Fault Isolation of Jet Engines (2003)
A fuzzy logic system is developed for gas turbine module fault isolation. Inputs to the fuzzy logic system are measurement deviations of gas path parameters from a "good" baseline engine. The gas...
Application of Fuzzy Logic for Fault Isolation of Jet Engines (2003)
A fuzzy logic system is developed for gas turbine module fault isolation. Inputs to the fuzzy logic system are measurement deviations of gas path parameters from a "good" baseline engine. The gas...
Application of Fuzzy Logic for Fault Isolation of Jet Engines (2003)
A fuzzy logic system is developed for gas turbine module fault isolation. Inputs to the fuzzy logic system are measurement deviations of gas path parameters from a "good" baseline engine. The gas...
Application of Fuzzy Logic for Fault Isolation of Jet Engines (2003)
A fuzzy logic system is developed for gas turbine module fault isolation. Inputs to the fuzzy logic system are measurement deviations of gas path parameters from a "good" baseline engine. The gas...
An aeroelastic analysis based on finite elements in space and time is used to model the helicopter rotor in forward flight. The rotor blade is represented as an elastic cantilever beam undergoing...