Variable area jet nozzle for noise reduction using shape memory alloy actuators

2008 ◽  
Vol 123 (5) ◽  
pp. 3871-3871 ◽  
Author(s):  
James Mabe
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Noise Reduction ◽  
Jet Nozzle

scholarly journals SHAPE MEMORY ALLOY ACTUATORS ARE USED TO CREATE A VARIABLE AREA JET NOZZLE FOR NOISE REDUCTION: A REVIEW

2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Shubham Chavan ◽  
Pratap Gujar
Keyword(s):  
Shape Memory Alloy ◽  
Flow Field ◽  
Shape Memory ◽  
Noise Reduction ◽  
New Technology ◽  
Field Measurements ◽  
Aviation Industry ◽  
Loop Control ◽  
Jet Nozzle ◽  
Asymmetrical Design

The real study details the design and implementation of Shape memory alloy actuators to produce a noise-reducing variable area jet nozzle. A subscale design specification of a changeable area jet nozzle was created using SMA actuators in an asymmetrical design. Commercial transportation planes must be quieter, cleaner, and more efficient, according to the international community. The aviation industry is reacting by developing new technology in order to achieve those objectives. Changing the area of a commercial jet engine's fan nozzle can result in substantial noise reduction and reduced fuel economy. At takeoff and approach, a bigger diameter reduces jet velocity, which reduces noise. In cruise, adjusting the diameter to account for variable Mach numbers, altitude, and other factors helps optimise fan loading and minimise fuel consumption and emissions. Boeing has tested a 20 percent area change scaled variable area jet nozzle. At the nozzle exit, Shape Memory Alloy actuators were utilised to place 12 interlocking panels. To maintain a range of consistent diameters with variable flow circumstances and to alter the diameter under constant flow conditions, a closed loop control system was utilised. At each condition, acoustic data was gathered using side line microphones, and flow field measurements were taken using PIV at various crosssections. The design of a variable area nozzle is explained in this work. The diameter of the nozzle and its influence on acoustic performance are discussed. The effects of the joints between the interlocking panels are seen in the flow field data.

Variable area jet nozzle using shape memory alloy actuators in an antagonistic design

2008 ◽  
Author(s):  
James H. Mabe ◽  
Frederick T. Calkins ◽  
Mehmet B. Alkislar
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Jet Nozzle

Fully-coupled, Aeroelastic Stability Analysis of Adaptive, Shape Memory Alloy Structural Technologies for Airframe Noise Reduction

2022 ◽  
Author(s):  
Michael Nucci ◽  
Eric Blades ◽  
Nicholas Reveles ◽  
Parthiv N. Shah ◽  
Travis L. Turner ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Noise Reduction ◽  
Aeroelastic Stability ◽  
Airframe Noise ◽  
Fully Coupled

The role of (001) microtwinning played during the deformation of stress induced martensite in Ti-Ni-Nb shape memory alloy

2003 ◽  
Vol 112 ◽  
pp. 743-746
Author(s):  
Y. F. Zheng ◽  
W. Cai ◽  
L. C. Zhao
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory

Structure and mobility of martensite variant interfaces in a Cu-Zn-AI shape memory alloy

2003 ◽  
Vol 112 ◽  
pp. 519-522 ◽  
Author(s):  
W. Cai ◽  
J. X. Zhang ◽  
Y. F. Zheng ◽  
L. C. Zhao
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Martensite Variant

Compression Experiment and Simulation Study of Shape Memory Alloy Lattice Structure

2019 ◽  
Author(s):  
Osuke Ishida ◽  
Junichi Kitada ◽  
Katsuhiko Nunoani ◽  
Kiyoshi Uzawa
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Simulation Study ◽  
Lattice Structure ◽  
Experiment And Simulation

The Design & Characterisation of a Miniature Shape Memory Alloy Valve for Passive Thermal Management

2014 ◽  
Author(s):  
Alistair Waddell ◽  
J. Punch ◽  
Jason Stafford ◽  
Nicholas Jeffers
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Thermal Management

Analysis of the effect of Heat Treatments in the manufacturing process of Shape Memory Alloy Springs

2017 ◽  
Author(s):  
Ricardo Alexandre Amar de Aguiar ◽  
Pedro Manuel Calas Lopes Pacheco ◽  
Brenno Tavares Duarte
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Manufacturing Process ◽  
Heat Treatments

Comparative Analysis of a Tuned Mass Damper Using Steel and a Ni-Ti Shape Memory Alloy

2019 ◽  
Author(s):  
Marcelio Ronnie Dantas de Sá ◽  
Armando Wilmans Nunes da Fonseca Júnior ◽  
Yuri Moraes ◽  
Antonio Almeida Silva
Keyword(s):  
Comparative Analysis ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Tuned Mass Damper ◽  
Mass Damper
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