Originally Posted by
Stanger
Auto frames are tested in a fixed jig and I don't see why we wouldn't test a bike frame the same way. Decrease the independent variables and isolate the system to find out what we want to know.
Static testing of an auto frame in a fixed jig is done to determine structural integrity. It verifies welds and support placement. Dynamic testing, as we are speaking of, is done on a 4 or 7 post 'shaker' rig. You can also do structural testing to determine local mount and suspension deflection on something called a 'Kinematics and Compliance Rig'. It's kind of a cross between a fixed jig and a shaker rig.
They all have their place.