All Questions
Tagged with aerospace-engineering dynamics
7
questions
1
vote
1
answer
74
views
Jitter Experienced by Spacecraft from Reaction Wheel Imbalances
I am working on a project trying to model a satellite's pointing error caused by jitter from the reaction wheels. I have found a couple of papers (Paper 1 and Paper 2) which implement the simple model ...
- 11
0
votes
0
answers
84
views
Investigation of Body Motion in SolidWorks: Euler Angles Rate or Angular Velocity?
This is my first question in this community.
I decided to demonstrate my problem on simple rigid body, but task may be applied to more complex shapes. So, a cube is built in SolidWorks:
Using the ...
- 226
1
vote
1
answer
52
views
Running a Dynamic Model as Steady State with Time Varying Inputs
I am attempting to run a dynamic model of a waste heat recovery system (Brayton Cycle with intercooling) on IDAES but I keep getting errors on initilization seemingly no matter what I do. My work ...
1
vote
0
answers
33
views
Confusion with Measuring Velocities in a Translating/Rotating Reference Frame: Combining Transport Theorem and Homogeneous Transformations
The inertial reference frame is denoted by $I$, the position, velocity, acceleration, angular velocity, and angular acceleration of reference frame $S$ is measured in the inertial frame, reference ...
- 11
4
votes
4
answers
2k
views
Resonance vs flutter
Is there any difference between resonance and flutter. Both of them are related to overlap of external excitation frequency and Natural frequency then increase in amplitude even inifite amplitude ...
- 61
5
votes
1
answer
121
views
Would a partial space elevator work? [closed]
Background
The normal space elevator (that reaches from the Earth's surface to a counterweight beyond geostationary) needs a material that's strength/weight ratio is better than any material we have ...
- 51
2
votes
4
answers
3k
views
J2 orbit propagation problem in MATLAB (solver instability)
The problem is that when I try to solve the following equations of J2 perturbed gravity:
...
- 31