Cantilever bending rigidity calculation method for ensuring robustness of engine cover

The invention provides a cantilever bending rigidity calculation method capable of ensuring the robustness of an engine hood, which comprises the following steps of: collecting assembly CAD (Computer Aided Design) data in a closed state of the engine hood, and establishing an engine hood simulation calculation model; the working condition boundary definition comprises two different boundary conditions; the maximum force required by the engine hood lock catch when the engine hood is opened is obtained; respectively setting five working conditions to calculate the bending rigidity of the engine cover cantilever based on the gravity and the maximum locking force; and solving to obtain the displacement deformation value of the two side edges of the engine cover outer plate and the displacement deformation value of the lock catch. The bending rigidity of the engine cover cantilever is controlled in the early stage, it is confirmed that the engine cover is robust and not prone to damage, and it is guaranteed that t