New answers tagged computing
3
Here is a cropped,annotated still from the video showing the arm.
The arm can be found in the ISS Intravehicular Equipment Catalog as MULTIUSE BRACKET PART NO. SEG33107631-301, pictured therein (in a low-res fashion).
A vendor is not given, but we in Spaceflight Training colloquially referred to these gadgets as "Bogen arms". The online Bogen ...
6
There are several ways to do this. The easiest and most straightforward is to break it into two sets by including velocity as a variable, and solve together.
Instead of a single second order differential equation
$$\ddot{\mathbf{r}} = -\frac{\mu}{r^3}\mathbf{r}$$
We can solve the following pair of first order differential equations in parallel
$$\dot{\mathbf{...
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