The vertical deflection of the frame on the trailer |
The vertical deflection of the frame on the gazelle |
| Another example is the natural twisting of the frame: Everyone knows that the right turn “cooler” of the left (right turn path is less than the trajectory of the left turn), so that on the long side on the vehicle deformation frame to the right. Due to the different trajectories (radius) of the right and left turns are uneven tire wear (the inside of the wheel relative to the outside, the left front wheel, relative to right, especially when turning on the minimum turning radius).. |  |
| Here’s another example of the natural deformation of the frame – this torsion (screw) of the frame. This car has a mileage of 3000 km, there was no overdrive, but the frame is deformed by 75 mm screw. This frame set only one transverse cross member. The contour of the frame is not closed, that “walk” spars with each other. |  |
The cause of the natural deformation of the frame is not only metal fatigue over time, but the design flaws:
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 Just three frames on the factory compound of two meters length |
- changing the geometry of the frame (vertical deflection, torsion, lateral deformation, deviation from the vertical position, buhtinovatost, dioganalnoe longitudinal displacement);
- fractures of the frame;
- cracks, bends;
- variation in wall thickness (raznoploskostnost);
- motor vehicle accident;
- excess of the allowable loads (overload the vehicle);
- violation of the rules of operation of the vehicle (non-uniform distribution of the load on the load platform, operation of the vehicle at a faulty coil non-horizontal production truck during unloading);