The invention relates to a method for calculating the composite stress of non-equal structure superposed valve plates of a vehicle
shock absorber and belongs to the technical field of the
shock absorber. The method is characterized in that according to the inner
radius, outer
radius, thickness and number of the non-equal structure superposed valve plates, the outer
radius unequal rate factor, the equivalent thickness, the equal thickness, and the thickness
proportionality factor of each superposed valve plate are determined; according to structure parameters and material characteristic parameters, the composite
stress factor of the non-equal structure superposed valve plates is calculated, so that the composite stress of each non-equal structure superposed valve plate at any radius under uniform pressure is calculated. Comparison with an ANSYS
simulation verification result shows that the calculating method is correct, a reliable composite stress calculating method is provided to the detaching design and strength
verification of the non-equal structure superposed valve plates of the vehicle
shock absorber, the design level, the quality and the performance of the shock absorber can be improved, on the premise that characteristic design requirements are met, the design requirement on the
stress strength of the valve plates is met, and the design and experiment cost and the production cost are reduced.