Australian outback corrugations - slowmo video of 200 series

[AustImages]

Hi all,

While in central Australia last month I took the opportunity to get some slow motion footage of the 200 over some pretty bad corrugations (AKA washboard road). It's easy to see why abandoned trailers often litter the roadside after they've been shaken apart on these roads!

Very impressed with how much is absorbed by the body mounts. The 200 is so much smoother over them than anything else I've driven.

Check out the video....

 

[NLScooby]

That video is tough to watch!

Aren't these bumps essentially created by the cyclical motion (the compression and rebound) of the suspension of the the vehicles that travel across them? Where the chain of events is likely started by one "real" bump - which leads to the suspension (perhaps worn suspension) rhythmically pounding the soft sand and creating more bumps...? Just a theory....

Maybe folks should drag one of those arena graders around behind them and smooth out the roads.....Sure, the dust would likely drop visibility to zero, but at least the vehicles would stay together!

 

[Desert Nomad]

That video is tough to watch!

Aren't these bumps essentially created by the cyclical motion (the compression and rebound) of the suspension of the the vehicles that travel across them? Where the chain of events is likely started by one "real" bump - which leads to the suspension (perhaps worn suspension) rhythmically pounding the soft sand and creating more bumps...? Just a theory....

Maybe folks should drag one of those arena graders around behind them and smooth out the roads.....Sure, the dust would likely drop visibility to zero, but at least the vehicles would stay together!

A frequently driven track will always have corrugations. In my experience it's mainly due to vehicles running too high tire pressure on sand. And they are a major pain to drive on when fully aired up

 

[Rigger]

Very cool! Thanks for sharing that.

 

[AustImages]

That video is tough to watch!

Aren't these bumps essentially created by the cyclical motion (the compression and rebound) of the suspension of the the vehicles that travel across them? Where the chain of events is likely started by one "real" bump - which leads to the suspension (perhaps worn suspension) rhythmically pounding the soft sand and creating more bumps...? Just a theory....

Maybe folks should drag one of those arena graders around behind them and smooth out the roads.....Sure, the dust would likely drop visibility to zero, but at least the vehicles would stay together!

There are a few theories about the cause, and most include something about one bump starting them off. But there have been tests done with no suspension, and even just ploughs on the sand, and the corrugations still form.

People have theorised that lower tyre pressures make them form more slowly, and also that higher weights also make them form more slowly.