General > General Technical Chat
Sharing some project planning phase: A (digital) ELECTRO-MECHANICAL Network
RJSV:
This more detailed (see photo), view shows the 8 gears in each station switch box.
Idea is propagation thru the chain is palatable, or at least audiable and a 240 mSec pulse, making way thru 24 gears, comes out to 10 mSec per gear, to sort-of 'wake up'.
RJSV:
Hard to convey in the picture, here, but question is about the back end, of the curve. That is, while I can imagine a front 'wave-front' powering into each next box, it's hard to characterize the back or turn off where rotation has stopped, in the wake.
Plus, it becomes important to distinguish: most power stop actions also inherently place a BLOCK on any rotation, down the line as well. So that is, maybe, equiv of sending an (electric) pulse, then shorting out the line!
It is possible, that removing the electric motor connect so the gears in the network line are free, that might have effect(s).
Certainly, in steady state, having a 'dead' motor connected is a huge 'buzz-kill' (uh,...stalls the whole drive chain...)
RJSV:
Picture showing:
The graphic has main TIME axis, moving downward as time flows. On the left, each series string (of gears), is for the rotary power flow as left to right; in other words, an electric controller / motor drives the series string Network.
Looking at the 'red' gears; those represent 100 % of total speed has been reached. See first line; at 200 mSeconds from origination pulse (that's set at 250 mSec.)
Next, going down, the (electric) power is gone, by time= 250 mSec. So the gear train speed starts to decay. Scanning further downward, viewers can interpret this diagram to show the 'evolution' from active rotating, downward in speed, to 50%, then 20%, before full stop.
The graph is a little harsh, in that the residual rotation(s) likely persist more like a couple hundred milli-seconds..., Not 100 mSec.
RJSV:
The reason the graph (previous) helps, is to get a glance at how 'FAR' down the line that momentum / inertia will take the gear start-ups, after formal STOP is made, and will those extra interactions cause problems.
Well, according to graph, there shouldn't be much residual transmission, (down the line to other switch boxes), maybe one box would be accessed.
RJSV:
...But what (that last) graph starts to show, how everything in that gear train line-up just, maybe, goes into a 'free fall', or at least 'free wind-down'. What I mean is, there is a sort-of ACOUSTIC like connection, from gear pressure applied, down the line.
Think of it this way: With gear tensions or 'run lash', all back lash gone, try poke or tap the gear. Acoustically, that TAP will progress thru your train, enabling you to feel the taps, some number of gears forward. That's what I'm calling 'acoustic' and that moves at speed of sound (in metal). By taking some (even slight) pressure off, by cutting the motor for instance, you change the mode, of this gear train slow-down, to something like, every gear just slowing down by itself.
(Using speed of sound est 1 foot per millisecond, very roughly)
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version