Results 11 to 20 of about 80,594 (224)

A New Hypersonic Wind Tunnel Force Measurement System to Reduce Additional Bending Moment and Avoid Time-Varying Stiffness [PDF]

open access: yesSensors, 2022
In order to improve traditional hypersonic wind tunnel airframe/propulsion integrated aerodynamic testing technology for hypersonic vehicles, a new force measurement system called the aerodynamic force measuring support (AFMS) was designed.
Shichao Li   +3 more
doaj   +2 more sources

3D Numerical Simulation and Structural Optimization for a MEMS Skin Friction Sensor in Hypersonic Flow [PDF]

open access: yesMicromachines, 2022
The skin friction of a hypersonic vehicle surface can account for up to 50% of the total resistance, directly affecting the vehicle’s effective range and load.
Huihui Guo   +4 more
doaj   +2 more sources

MEMS Skin Friction Sensor with High Response Frequency and Large Measurement Range [PDF]

open access: yesMicromachines, 2022
Micro-electromechanical system (MEMS) skin friction sensors are considered to be promising sensors in hypersonic wind tunnel experiments owing to their miniature size, high sensitivity, and stability.
Huihui Guo   +4 more
doaj   +2 more sources

Micro-Assembly Error Control of Specialized MEMS Friction Sensor [PDF]

open access: yesMicromachines
A skin friction sensor is a three-dimensional MEMS sensor specially designed for measuring the skin friction of hypersonic vehicle models. The accuracy of skin friction measurement under hypersonic laminar flow conditions is closely related to the ...
Wei Zhou   +4 more
doaj   +2 more sources

Hypersonic Aerodynamic Force Balance Using Micromachined All-Fiber Fabry–Pérot Interferometric Strain Gauges [PDF]

open access: yesMicromachines, 2019
This paper presents high-sensitivity, micromachined all-fiber Fabry–Pérot interferometric (FFPI) strain gauges and their integration in a force balance for hypersonic aerodynamic measurements.
Huacheng Qiu   +4 more
doaj   +2 more sources

A novel method to realize a non-uniform heat flux distribution through the variable-speed scanning of an electron beam [PDF]

open access: yesScientific Reports, 2021
Quartz lamp heaters and hypersonic wind tunnel are currently applied in thermal assessment of heat resistant materials and surface of aircraft. However, it is difficult to achieve precise heat flux distribution by quartz lamp heaters, while enormous ...
Chuanmao Zheng   +3 more
doaj   +2 more sources

New Transonic Tests of HB-2 Hypersonic Standard Models in the VTI T-38 Trisonic Wind Tunnel

open access: goldAerospace
Recent experience has shown that test results of standard wind tunnel models under off-design conditions could be a useful aid in preparations of some nonstandard wind tunnel tests.
Dijana Damljanović   +3 more
doaj   +2 more sources

Characterization of Freestream Disturbances in Conventional Hypersonic Wind Tunnels. [PDF]

open access: bronzeJ Spacecr Rockets, 2019
Duan L   +13 more
europepmc   +2 more sources

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