Quote:
Originally Posted by lucid
So you are basically saying they would somehow fixate the chassis at the suspension mounts which would transfer the suspension loads. Makes sense. So at that point, the car is clamped down at 4 corners, potentially with more than 4 attachment points. I am not sure about the force application. If you were to simplify it to 4 mounting points in the corners, which points and directions are the forces being applied exactly? I can see different permutations resulting in different axis.
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More speculation...
For example you could do it this way. Have the rear suspension mounting points totally rigidly locked down. Then have the front shock towers fixed together with a U shaped rigid tool as well. The force actuators could then be one upward near one front hub location and the other downward near the other front hub. If the test fixture for the front was made very stiff but with some pivots instead you probably could insure that the two forces were very close to vertical with equivalent application locations right at the shock tower mounting points.
I'd love to see the actual test set up, again might be a 4 wheel suspension dyno or modal testing as well.