EMENDATION OF P-λ FORMULA OF DIAPHRAGM SPRING BASED ON THE NEW HYPOTHESIS

The diaphragm springs are widely used in the automobile clutch.At present,analysis of the spring always used the A L formula,which is based on the hypothesis of Timoshenko.But in practice,the hypothesis of Timoshenko.But in practice,the hypothesis is too simple to be used in production.New hypothesis of the clutch diaphragm spring is introduced.The radial distortion,which is ignored in hypothesis of Timoshenko,is taken in consideration.The amended formula is verified to be more close to be practical production.