关键词: 双质量飞轮, 弧形弹簧, 螺旋线, 静刚度

Abstract:

The static stiffness model of circumferential arc spring dual mass flywheel (DMF-CS) was established based on the feature of changeable helix angle of arc spring. Based on the theoretical equations of the spring curve, according to periodical changing characteristics of the helix angle, the relation between transferred torque and total deformation of the arc spring was figured out using related mechanics theory. Applying the static stiffness test bench of DMF-CS, the experimental study was carried out. The theoretical and experimental results were compared, which validated the feasibility and accuracy of the established model. Meanwhile, the established model was compared with other theoretical models, which show that this model improves the precision of the static stiffness calculation.

Key words: dual mass flywheel(DMF), arc spring, helix, static stiffness