...
Again, it may make sense to go with a similar piston with less stroke length.
Solution No. 4: 6453K119 or 6453K143
This piston has a 3/4" bore diameter made from aluminum and has a 5" or 5.5" stroke length, respectively. Some notable advantages of this option are:
...
When it comes down to it though, I'm not sure how different the different base plates are between pistons, because theoretically, the bore, main rod, and tie rods should be almost identical no matter which option we choose. For that reason, it makes most sense to go with this piston, because it already has an acceptable COTS form factor and therefore requires not adjustments, though adjustments could be made to improve things.
Selected Piston Dimensions and Improvements
The relevant dimensions and properties of 6453K119 are enumerated in the table below:
| Bore Diameter (in) | Bore Material | Stroke Length (in) | Rod Material | ||
|---|---|---|---|---|---|
| 0.5 | Aluminum | 5" |
Given a 4.5" coupling section, this gives us a 0.5" margin on separation distance
Resources:
The following resources are useful materials for learning about pressure vessel and piston theory:
...
Note that this standard was cancelled in July, 2002.
[4] Aerospace Corporation, Operational Guidelines for Spaceflight Pressure Vessels
...