![]() This Centrifugal Force is defined by the equation:į centrifugal = mass x velocity 2 / radius ![]() Here is the lateral force acting on the 20 t boom as the float travels around a corner. Tipping angles mentioned above are all well and good, but what makes the float tip in the first place?Īssuming we are driving on a road with minimal camber, the main factor influencing the tendency to tip, is lateral force. Lateral Force Generated From Cornering Speed Note: the Float/trailer Mass and its COG are ignored here as it is constant between the two configurations and not the focus. ![]() Looking at the right hand image, if the float is widened to 3.1 m then the stationary angle required to tip the float is much larger at 24 deg. In theory this stationary float will tip at around 19 deg of tilt. In this case, the triangle of stability is drawn off the centre line of the outside tyre assuming there is some deflection and negating suspension travel. Referring to an example of a large crane boom mounted on a float (pictured above), we see from the following rear elevation in the image below, the height of the load (boom) center of gravity (COG) in relation to the 2.5 m legal float width configuration (on the left side).Ĭrane booms can weigh up to 20 t with the COG 3.1 meters above the road. Let's look at the physics surrounding load stability.
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