Post by DontDentMyCar on May 7, 2014 13:59:18 GMT -5
I was wondering about this a bit...
The structural frames of vehicle are designed to absorb the effects of a collision to slow the vehicle to a stop by crumpling up, rather than being rigid and creating greater g-forces on the passengers with a resulting instant stop, say, in a head-on collision.
But I'm wondering if all vehicles had their structural frame arched (in plan maybe an oval shape with the tires outside the oval structural frame) that most collisions being glancing blows that the two vehicles would 'glance' off one another and thus avoid quick stopping action. It would certainly create a lot more lateral force but it might dissipate the g-forces associated with serious injuries and death. The downside is if somehow vehicles could be deflected there's no control past that point unless brakes were applied automatically (which they should be deployed just as airbags and hazard lights can and should be).
I'm also wondering if the 'absorb' mentality has to do with the weight/cost of material as well, that a more rigid (but flexible) structural system would cost and possible weigh more (unless made of composites).
Post by DontDentMyCar on May 7, 2014 16:05:47 GMT -5
Even if it's a direct hit, as it compresses it would naturally want to push back, being flexible. Plus all the stuff that makes up a regular vehicle frame would generally be there adding crushing strength. The fact is on a regular straight frame vehicles, straight frames have to be larger to offer the same structural resistance. Think of a frisbee, if you try to crush it, it will push back in the opposite direction to retain it's shape.
Most dams take on the same shape to resist the massive loads of water, it's a perfect structural shape that should be considered.
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