May I suggest that before you invest your time designing safety devices that you actually get some struts and look at their travel damping?
The ones I have in front of me from a Honda civic take all my body weight to compress (one) yet when released take ~3 seconds to reach full extent. Admittedly travel is at its fastest when initially released, but still remarkably controlled & IMHO the only danger would be if incorporated into a scissor lift or another similar mech it'd make a rather effective guillotine.
If safety conscious, why not just use a hand winch / leadscrew to hoist a parallel motion carrier?
The ones I have in front of me from a Honda civic take all my body weight to compress (one) yet when released take ~3 seconds to reach full extent. Admittedly travel is at its fastest when initially released, but still remarkably controlled & IMHO the only danger would be if incorporated into a scissor lift or another similar mech it'd make a rather effective guillotine.
If safety conscious, why not just use a hand winch / leadscrew to hoist a parallel motion carrier?