Questions tagged [aerospace-engineering]
Aerospace engineering is the primary branch of engineering concerned with the research, design, development, construction, and testing of aircraft and spacecraft.
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I have a problem with my representation of roll in Simulink
I am currently an engineering student and a member of the aerospace club of my engineering school (ESILV) which is called LéoFly. We’re a team of 12 students and are building a Fusex (...
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Need some advice, control system animation. Appreciate some help!
I would like to have a 3d simulation of a helicopter landing on a ship.
I thought about using matlab for this, as a far as I know you can connect models from Simulink to virtual worlds using blocks, ...
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Could a Fuel Breathing Engine Rather Than an Oxidizer Breathing Engine Work?
Here on Earth, the atmosphere is ideal for jet engines which combust a fuel using the native oxygen as an oxidizer. On another planet, might it make sense to carry oxidizer in the fuel tanks and scoop ...
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Aerospace bolts and washer combination
In my aerospace company we have repetitive discussions regarding the stacking of low tolerance fasteners with non-countersunk washers. For example a fastner NAS6703-X (size 10) has a max. base radius ...
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How does NASA's QueSST X-59 jet work?
The QueSST (Quiet Supersonic Transport) is a project to create a more diffuse sonic boom in order to use supersonic flight commercially without the usual abrupt 1~2 psf pressure spike damaging the ...
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Determining damped frequency and damping ratio from time domain data
I have some time domain data which are responses of an aircraft to various inputs (example: time vs. bank angle for lateral stick pulse input). I need to compute the effective damping ratio and damped ...
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Does MEMS/Optical Gyroscope record Earth's Rotational and revolutional angular velocities
I am using a 3 axis gyroscope (Android device) to record angular velocities using a sensor data logger application.
When the device is placed stationary, the gyroscope recorded the following values:
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How to convert the velocity field to a pressure field for obtaining the sound level?
I am studying jet mixing noise and I am given a velocity field, with $V_x$, $V_y$, $V_z$ in the Cartesian coordinates. I wanted to know if there is a method by which I could find some information ...
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In a nonlinear static two-step subcase, why does the load step decrease after the first step?
I am using MSC Nastran for nonlinear static analysis (sol 400).
Step 1 contains a small perturbation load laterally on a thin-walled cylinder.
Step 2 contains a very large compressive load.
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Airfoil meshing using ANSYS
Logged in a little time ago i have a new question. So I am trying to mesh an arifoil geometry using ANSYS meshing. Airfoil number is NACA 84-M profile. Running 2-D simulation my main objective is to ...
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UAV 5-Channel Multispectral camera vs. modified RGB camera that resolves NIR
Looking into purchasing a drone. One has a dedicated 5-channel multispectral camera (Micasense RedEdge) the other has a modified Sony RGB camera that resolves the NIR spectrum. Can someone sum up the ...
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Assuming sufficient electrical power, is an electrolysed oxyhydrogen rocket practical?
Assume we have access to light electrical power e.g. a (hypothetical) small fusion reactor.
Is it practical to operate a water-fuelled rocket, in which water is converted to hydrogen and oxygen (or ...
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Why do wing-tip vortices cause an induced angle of attack upstream?
My question is the following. Wing-tip vortices induce a downward flow on the root side of the wing. So, if this induction happens at the wing, and these vortices are then shed downstream, why is ...
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Optimizing Launch to LEO
I recently decided I would try to develop my own launch to LEO optimizer, as I have always been fascinated with the complexity of that problem. I have been using matlab, as I am very comfortable with ...
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How often is discrete-time control used in industry?
Although in reality I know that computers handle all systems in discrete time, in my limited industry work experience I've only used continuous-time control system analysis/standard frequency domain ...
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