Volumes | ASME International Mechanical Engineering Congress and Exposition | American Society of Mechanical Engineers Digital Collection

Topics: Design , Genetic algorithms , Numerical analysis , Optimization , Turbines , Impulse (Physics) , Blades , Flow (Dynamics) , Fluids , Manufacturing

System Dynamic Modeling of Vapor Compression Cycles

Eric S. Miller, Soumya S. Patnaik, Milind A. Jog

IMECE 2012; 27-35doi:https://doi.org/10.1115/IMECE2012-86928

Abstract

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Topics: Compression , Cycles , Modeling , System dynamics , Vapors , Heat , Aircraft , Stress , Thermal management , Compressors

Experimental and Numerical Investigation on the Discharge of Wood Pellets From a Hopper With the Discrete Element Method

Dominik Höhner, Siegmar Wirtz, Viktor Scherer

IMECE 2012; 37-47doi:https://doi.org/10.1115/IMECE2012-87406

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Topics: Discrete element methods , Wood products , Particulate matter , Approximation , Shapes , Density , Engineering simulation , Flow (Dynamics) , Friction , Simulation

Design of Experiments for Aeroelastic Analysis

Natasha Smith, Jose Camberos, Edward Alyanak

IMECE 2012; 49-57doi:https://doi.org/10.1115/IMECE2012-87587

Abstracts

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Topics: Experimental design , Design , Wings , Aerodynamics , Computational fluid dynamics , Deformation , Finite element analysis , Shapes , Aircraft , Approximation

Optimum NURBS Curve Fitting for Geometry Parameterization of Gas Turbine Blades’ Sections: Part I — Evolutionary Optimization Techniques

A. Safari, H. G. Lemu

IMECE 2012; 59-65doi:https://doi.org/10.1115/IMECE2012-89113

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Topics: Airfoils , Blades , Curve fitting , Gas turbines , Genetic algorithms , Geometry , Optimization

Optimum NURBS Curve Fitting for Geometry Parameterization of Gas Turbine Blades’ Sections: Part II — Swarm Intelligence Techniques

A. Safari, H. G. Lemu

IMECE 2012; 67-72doi:https://doi.org/10.1115/IMECE2012-89120

Abstracts

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Topics: Airfoils , Blades , Curve fitting , Gas turbines , Geometry , Optimization , Particle swarm optimization

Sizing Optimization of Lightweight Multilayer Thermal Protection Structures for Hypersonic Aircraft

Qi Wang, Gongnan Xie, Manyu Xiao, Weihong Zhang, Bengt Sundén

IMECE 2012; 73-80doi:https://doi.org/10.1115/IMECE2012-93052

Abstracts

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Topics: Aircraft , Optimization

Advances in Aerospace Materials and Structures

An Experimental and Numerical Investigation of Thickness Effect on Cross-Ply GLARE 5 FML Plates Subjected to Ballistic Impact

A. Seyed Yaghoubi, B. Liaw

IMECE 2012; 81-89doi:https://doi.org/10.1115/IMECE2012-85301

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Topics: Fibers , Metals , Plates (structures) , Damage , Projectiles , Bullets , Computer software , Dimensions , Finite element analysis , Laminates

Theoretical Prediction of the Anisotropic Effective Thermal Conductivity of Composite Materials

Fabio Gori, Sandra Corasaniti, Jean-François Ciparisse

IMECE 2012; 91-96doi:https://doi.org/10.1115/IMECE2012-86114

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Topics: Anisotropy , Composite materials , Thermal conductivity , Fibers , Heat , Heat flux , Heat shielding , Space vehicles , Steady state , Steel

Shape Memory Polymer With Aluminum Tube Reinforced Impact Resistant Sandwich Core

Gefu Ji, Guoqiang Li, Su-Seng Pang

IMECE 2012; 97-101doi:https://doi.org/10.1115/IMECE2012-86141

Abstracts

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Topics: Aluminum tube , Shape memory polymers

Low Velocity Impact Damage on CFRPs: A Parametric Study

R. Hundekari, S. Gururaja

IMECE 2012; 103-114doi:https://doi.org/10.1115/IMECE2012-86228

Abstracts

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Topics: Carbon reinforced plastics , Damage

Design of a Massively Reconfigurable Origami Space Structure Incorporating Shape Memory Alloys

Darren Hartl, Kathryn Lane, Richard Malak

IMECE 2012; 115-122doi:https://doi.org/10.1115/IMECE2012-86391

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Topics: Design , Shape memory alloys , Space frame structures , Finite element analysis , Shapes , Laminates , Constitutive equations , Mathematics , Shells , Structural analysis

Investigation on the Rotordynamics of a Rotor System With Air Film Damper (AFD)

Zhenbo Zhang, Hong Wang, Xiaolong Tong, Yanhong Ma, Jie Hong

IMECE 2012; 123-130doi:https://doi.org/10.1115/IMECE2012-86485

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Topics: Dampers , Rotordynamics , Rotors , Damping , Metals , Rubber , Stators , Stiffness , Vibration , Aircraft engines

Effects of Variable Non-Central Locations of Bonded Double Doubler Joint System on Free Flexural Vibrations of Orthotropic Composite Mindlin Plate or Panel Adherents

U. Yuceoglu, Ö. Güvendik

IMECE 2012; 131-151doi:https://doi.org/10.1115/IMECE2012-87328

Abstracts

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Topics: Composite materials , Vibration , Adhesives , Boundary-value problems , Mode shapes , Deformation , Interpolation , Plates (structures) , Polynomials , Shear (Mechanics)

Modeling of Dynamic Delamination in L-Shaped Composite Brackets

Burak Gözlüklü, Demirkan Çöker

IMECE 2012; 153-164doi:https://doi.org/10.1115/IMECE2012-87831

Abstracts

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Topics: Composite materials , Delamination , Modeling , Fracture (Materials) , Stress , Aircraft , Corners (Structural elements) , Design , Failure , Finite element analysis

Thermal Shock Effects on Dynamic Deformation Mechanisms in Ti₂AlC

R. Bhattacharya, N. C. Goulbourne

IMECE 2012; 165-185doi:https://doi.org/10.1115/IMECE2012-88040

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Topics: Deformation , Thermal shock , Temperature , Ceramics , Heat , Imaging , Mechanical properties , Microscale devices , Pressure , Scanning electron microscopy

Stiffness Characteristics of Membrane Space Structures Supported by Booms

H. Tamaru, T. Akita, M. C. Natori, H. Yamakawa

IMECE 2012; 187-192doi:https://doi.org/10.1115/IMECE2012-88254

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Topics: Membranes , Space frame structures , Stiffness , Tension , Finite element analysis , Vibration

Crash Energy Management of Rotorcraft Seat Based on Limit Load Curves and Corresponding Occupant Pelvic Load

Rasoul Moradi, Tony Bromwell, Rohit Jategaonkar, Hamid M. Lankarani

IMECE 2012; 193-202doi:https://doi.org/10.1115/IMECE2012-88467

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Topics: Energy management , Stress , Design , Military aircraft , Absorption , Helicopters , Lumbar spine , Military systems , Tradeoffs , Wounds

Evaluation of Dynamic Performance of Aircraft Seats for Larger Passenger Population Using Finite Element Analysis

Prasannakumar S. Bhonge, Rasoul Moradi, Hamid M. Lankarani

IMECE 2012; 203-211doi:https://doi.org/10.1115/IMECE2012-89024

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Topics: Aircraft , Finite element analysis , Regulations , Dynamic testing (Engineering) , Stress , Aviation , Crashworthiness , Emergencies , Safety

A Variational Asymptotic Method for Unit Cell Homogenization of Elastoplastic Heterogeneous Materials

Liang Zhang, Wenbin Yu

IMECE 2012; 213-225doi:https://doi.org/10.1115/IMECE2012-89058

Abstracts

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Topics: Anisotropy , Constitutive equations , Fiber reinforced composites , Finite element methods , Hardening , Kinematics , Numerical analysis , Stress , Stress-strain curves

Temperature Effects on Flutter of a Mach 5 Transport Aircraft Wing

Dries Verstraete, Gareth A. Vio

IMECE 2012; 227-234doi:https://doi.org/10.1115/IMECE2012-89308

Abstracts

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Topics: Aircraft , Flutter (Aerodynamics) , Temperature effects , Wings , Temperature distribution , High temperature , Stiffness , Temperature , Deformation , Design

Adhesiveless Composite Structures With Carbon Fiber Prepregs for Aircraft Primary Structural Applications

H. T. N. Gandy, R. Asmatulu

IMECE 2012; 235-246doi:https://doi.org/10.1115/IMECE2012-93462

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Topics: Aircraft , Carbon fibers , Composite materials , Honeycomb structures

Effects of Hardness on the Lifetime of Graphite Brushes Used for Aircraft Starter Generators

R. Asmatulu, M. J. Holle, H. E. Misak

IMECE 2012; 247-256doi:https://doi.org/10.1115/IMECE2012-93464

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Topics: Aircraft , Generators , Graphite

Evaluation of Fiber Reinforced Aircraft Composites via Nondestructive Testing Techniques

R. Asmatulu, V. Movva

IMECE 2012; 257-265doi:https://doi.org/10.1115/IMECE2012-93466

Abstracts

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Topics: Aircraft , Composite materials , Fibers , Nondestructive evaluation , Porosity

Advances in Gas Turbine Technology

Flow Field and Vibration Behavior of the Rotor due to Mistuning IGV in a Transonic Compressor

Xiaodong Yang, Anping Hou, Mingming Zhang, Manlu Li, Zhuoqi Wang

IMECE 2012; 267-274doi:https://doi.org/10.1115/IMECE2012-85127

Abstracts

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Topics: Compressors , Flow (Dynamics) , Inlet guide vanes , Rotors , Vibration , Blades , Fluids , Wakes , Annulus , Computational fluid dynamics

Flow Behavior of a Centrifugal Compressor With Vaneless Diffuser at Design and Off Design Conditions

Chuang Gao, Weiguang Huang, Haiqing Liu, Hongwu Zhang, Jundang Shi

IMECE 2012; 275-282doi:https://doi.org/10.1115/IMECE2012-85397

Abstracts

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Topics: Compressors , Design , Flow (Dynamics) , Vaneless diffusers , Surges , Impellers , Pressure , Computer simulation , Flow instability , Numerical analysis

Experimental Investigations on Mixed Flow Impeller and Vane Diffuser Under Various Operating Conditions

D. Ramesh Rajakumar, S. Ramamurthy, M. Govardhan

IMECE 2012; 283-292doi:https://doi.org/10.1115/IMECE2012-85695

Abstracts

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Topics: Clearances (Engineering) , Compressors , Diffusers , Flow (Dynamics) , Impellers , Pressure

Large Eddy Simulations of a Gas Turbine Combustor With a Parameterized Linear-Eddy Model

Chandrasekhar Kannepalli, William H. Calhoon, Jr.

IMECE 2012; 293-302doi:https://doi.org/10.1115/IMECE2012-85969

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Topics: Combustion chambers , Eddies (Fluid dynamics) , Gas turbines , Large eddy simulation , Flames , Turbulence , Databases , Flow (Dynamics) , Methane , Nitrogen oxides

Effect of Area Ratio on the Aerodynamic Performance of Parallel Wall Volute Casing of an Industrial Centrifugal Fan

C. Hariharan, M. Govardhan

IMECE 2012; 303-310doi:https://doi.org/10.1115/IMECE2012-86099

Abstracts

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Topics: Computer simulation , Design , Engineering simulation , Flow (Dynamics) , Impellers , Pressure , Simulation , Stress

The Effect of Inlet Flow Distortion on Performance of a Micro-Jet Engine: Part 2 — Engine Tests

A. Naseri, M. Boroomand, A. M. Tousi, A. R. Alihosseini

IMECE 2012; 311-316doi:https://doi.org/10.1115/IMECE2012-86803

Abstracts

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Topics: Engines , Flow (Dynamics) , Pressure , Generators , Steady state , Air jets , Micro gas turbines , Probes , Wind tunnels

The Effect of Inlet Flow Distortion on Performance of a Micro-Jet Engine: Part 1 — Development of an Inlet Simulator

A. Naseri, M. Boroomand, A. M. Tousi

IMECE 2012; 317-324doi:https://doi.org/10.1115/IMECE2012-86865

Abstracts

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Topics: Engines , Flow (Dynamics) , Ducts , Wind tunnels , Generators , Pressure , Air jets , Micro gas turbines , Probes , Steady state

Localizing Common Faults for Improved Aero Engine Maintenance

R. B. Walker, S. Perinpanayagam, I. K. Jennions

IMECE 2012; 325-335doi:https://doi.org/10.1115/IMECE2012-87610

Abstracts

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Topics: Aircraft engines , Maintenance , Machinery , Bearings , Engineering simulation , Finite element analysis , Finite element model , Frequency response , Mode shapes , Simulation

Modeling and Simulation of Gas Turbine System on a Virtual Test Bed (VTB)

Eshwarprasad Thirunavukarasu, Ruixian Fang, Jamil A. Khan, Roger Dougal

IMECE 2012; 337-346doi:https://doi.org/10.1115/IMECE2012-87919

Abstracts

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Topics: Dynamic modeling , Gas turbines , Modeling , Simulation

Engine Life Evaluation Based on a Probabilistic Approach

Najmeh Daroogheh, Ameneh Vatani, Maryam Gholamhossein, K. Khorasani

IMECE 2012; 347-358doi:https://doi.org/10.1115/IMECE2012-87929

Abstracts

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Topics: Engines , Creep , Damage , Erosion , Simulation , Cycles , Failure , Flight , Low cycle fatigue , Maintenance

Prediction of the Jet Engine Performance Deterioration

Maryam Gholamhossein, Ameneh Vatani, Najmeh Daroogheh, K. Khorasani

IMECE 2012; 359-366doi:https://doi.org/10.1115/IMECE2012-87936

Abstracts

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Topics: Compressors , Cycles , Engines , Flight , Gas turbines , Jet engines , Maintenance , Modeling , Temperature , Time series

Deterioration Detection and Health Monitoring in Aircraft Jet Engines

N. Daroogheh, A. Baniamerian, H. Nayyeri, K. Khorasani

IMECE 2012; 367-375doi:https://doi.org/10.1115/IMECE2012-87938

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Topics: Aircraft , Jet engines , Engines , Computer software , Maintenance

Static Testing of Compliant Plate Seals

Hrishikesh V. Deo, Deepak Trivedi

IMECE 2012; 377-384doi:https://doi.org/10.1115/IMECE2012-87989

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Topics: Testing , Leakage , Plates (structures) , Pressure , Bridges (Structures) , Design , Manufacturing , Rotors , Stators , Aircraft engines

Experimental Investigations of the Film Cooling Performance of a Micro-Tangential-Jet Scheme on a Gas Turbine Vane: Part 1 — Effectiveness

O. Hassan, I. Hassan

IMECE 2012; 385-395doi:https://doi.org/10.1115/IMECE2012-88535

Abstracts

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Topics: Film cooling , Gas turbines , Pressure , Suction , Coolants , Airfoils , Cooling , Density , Ducts , Jets

Experimental Investigations of the Film Cooling Performance of a Micro-Tangential-Jet Scheme on a Gas Turbine Vane: Part 2 — Heat Transfer Coefficient

O. Hassan, I. Hassan

IMECE 2012; 397-407doi:https://doi.org/10.1115/IMECE2012-88541

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Topics: Film cooling , Gas turbines , Heat transfer coefficients , Pressure , Suction , Turbulence , Cooling , Heat flux , Liquid crystals , Thermal stresses

Design and Developement of a Microjet Engine Indoor Test Cell

A. R. Alihosseini, M. Boroomand, A. M. Tousi, A. Horoufi

IMECE 2012; 409-417doi:https://doi.org/10.1115/IMECE2012-89124

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Topics: Design , Engines , Testing , Construction , Instrumentation , Air flow , Engineering prototypes , Maintenance , Optimization , Testing performance

Sensitivity Analysis of Gas Turbine Fuel Consumption With Respect to Turbine Stage Efficiency

M. Zeinalpour, K. Mazaheri, A. Irannejad

IMECE 2012; 419-423doi:https://doi.org/10.1115/IMECE2012-89956

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Topics: Fuel consumption , Gas turbines , Sensitivity analysis , Turbines , Engines , Generators , Cycles , Optimization , Thermodynamic cycles

Turbine Blade Aerodynamic Optimization on Unstructured Grids Using a Continuous Adjoint Method

M. Zeinalpour, K. Mazaheri, A. Irannejad

IMECE 2012; 425-431doi:https://doi.org/10.1115/IMECE2012-89971

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Topics: Optimization , Turbine blades , Design , Flow (Dynamics) , Blades , Cascades (Fluid dynamics) , Finite difference methods , Flux (Metallurgy) , NASA , Polynomials

Tip Clearance Control Concept in Gas Turbine H.P. Compressors

G. I. Ekong, C. A. Long, P. R. N. Childs

IMECE 2012; 433-441doi:https://doi.org/10.1115/IMECE2012-93063

Abstracts

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Topics: Clearances (Engineering) , Compressors , Gas turbines , Aircraft engines , Cavities , Cycles , Engines , Blades , Design , Flow (Dynamics)

Aerodynamics — High and Low Speeds

Tip Flowfield of a Low Aspect Ratio Circulation Control Wing With Spanwise Variation in Efflux

Matthew Perry, David Miklosovic

IMECE 2012; 443-453doi:https://doi.org/10.1115/IMECE2012-85266

Abstract

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Topics: Wings , Airfoils , Geometry , Momentum , Particulate matter , Wake turbulence , Wakes , Wind tunnels

A Novel Look at the Performance of the Cyclorotor Propulsion System for Air Vehicles

José C. Páscoa, Antonio Dumas, Michele Trancossi

IMECE 2012; 455-462doi:https://doi.org/10.1115/IMECE2012-85544

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Topics: Propulsion systems , Vehicles , Blades , Rotors , Thrust , Cycles , Delays , Drag (Fluid dynamics) , Flow (Dynamics) , Optimization

Aerodynamics of a Yawed Blade in Reverse Flow

Rafael Lozano, Vrishank Raghav, Narayanan Komerath

IMECE 2012; 463-469doi:https://doi.org/10.1115/IMECE2012-85947

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Topics: Aerodynamics , Blades , Flow (Dynamics) , Wings , Vortices , Rotors , Airfoils , Disks , Flight , Helicopters

Kinetics Parameters Evaluation of Paraffin-Based Fuel

Genivaldo P. Santos, Pedro T. Lacava, Susane R. Gomes, José Atíllio F. F. Rocco

IMECE 2012; 471-480doi:https://doi.org/10.1115/IMECE2012-86275

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Topics: Fuels , Paraffin wax , Molecular weight , Propellants , Propulsion systems , ASTM International , Firing , Gravimetric analysis , Ignition , Melting point

Aerodynamic Instability Modes for a Load Slung From a Helicopter

Sumant Sharma, Narayanan Komerath, Marilyn Smith, Vrishank Raghav

IMECE 2012; 481-489doi:https://doi.org/10.1115/IMECE2012-86446

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Topics: Stress , Wind tunnels , Degrees of freedom , Oscillations , Simulation , Computational fluid dynamics , Damping , Dynamic models , Dynamic testing (Engineering) , Dynamic testing (Materials)

Study for Starting Characteristics of Scramjet Engine Test Facility (SETF)

Yang Ji Lee, Sang Hun Kang, Soo Seok Yang

IMECE 2012; 491-498doi:https://doi.org/10.1115/IMECE2012-87193

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Topics: Scramjets , Test facilities , Ejectors , Flight , Engines , Enthalpy , Nozzles , Wind tunnels , Aerospace industry , Air-breathing engines

Acheon Project: A Novel Vectoring Jet Concept

Antonio Dumas, Josè Pascoa, Michele Trancossi, Alessandro Tacchini, Galina Ilieva, Mauro Madonia

IMECE 2012; 499-508doi:https://doi.org/10.1115/IMECE2012-87638

Abstracts

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Topics: Control systems , Deflection , Fluids , Momentum , Plasmas (Ionized gases)

Aerodynamic Shape Optimization Using Improved Territorial Particle Swarm Algorithm

Amir Nejat, Pooya Mirzabeygi, Masoud Shariat-Panahi

IMECE 2012; 509-517doi:https://doi.org/10.1115/IMECE2012-88828

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Topics: Algorithms , Particulate matter , Shape optimization , Airfoils , Design , Optimization , Particle swarm optimization , Aerodynamics , Density , Robustness

Expansion of Indicial Function Approximations for 2-D Subsonic Compressible Aerodynamic Loads

T. Farsadi, J. Javanshir

IMECE 2012; 519-528doi:https://doi.org/10.1115/IMECE2012-89071

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Topics: Function approximation , Stress , Approximation , Mach number , Airfoils , Compressible flow , Flight

Physical Property and Carbon Black Distribution Impact on Propulsion Efficiency of Paraffin-Based Fuel

Genivaldo P. Santos, Shirley M. Pedreira, Pedro T. Lacava

IMECE 2012; 529-541doi:https://doi.org/10.1115/IMECE2012-89201

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Topics: Carbon black pigments , Fuels , Paraffin wax , Propulsion , Combustion , Propellants , Chemical energy conversion , Engines , Explosions , Flames