Impact load between loco and bogie?
Impact load between loco and bogie?
(OP)
We need to measure the impact load between a loco and a bogie during a normal shunting operation. Its been a long time since I had to think about anything like this, I was thinking about placing accelerometers on the loco and bogie to measure the peak longnitudinal g, assuming a straight shunt, then using that to determine the force. What would be the equation to use? Is it as simple as force=mass x acceleration, or is it function of the time of impact? Like I say, its been a long time, need the old brain kickstarting on this one.





RE: Impact load between loco and bogie?
Consider strain gauges on the bolster and/or king-pin and whatever other connections your configuration may have.
RE: Impact load between loco and bogie?
RE: Impact load between loco and bogie?
Our engines were the small double ended type with the cab in the middle powered by 671 Detroit Diesel's. We found out that our contract yard teams were cowboys on the dark shifts.
They had broken the "bolsters", bent the king pins, tore the plate that king pin attaches to, and wrecked several couplings, beside jumping the track.
RE: Impact load between loco and bogie?
http://www.shockwatch.com/
RE: Impact load between loco and bogie?
Railroad engineering reference manuals or call a railcar manufacturer.
RE: Impact load between loco and bogie?