Nonlinear Vibration Analysis of a Rotating Disk-Beam System Subjected to Dry Friction

Table 1

Model parameters of the coupled disk-beam system with the dovetail interface feature.

Parameter	Disk	Beam
Contact stiffness kt: 8 × 10^6 N/m	Density: ρD 7850 kg/m^3	Density: ρb 7850 kg/m^3
Friction coefficient: μ 0.3	Young’s modulus: ED 200Gpa	Young’s modulus: Eb 200 GPa
Beam number: Nb 6	Outer radius: RD 0.35 m	Beam length: Lb 0.15 m
Tenon angle: γ 60°	Thickness: hD 0.0275 m	Beam width: b 0.06 m
Angle of contact surface: ϕ 30°	Inner radius: Rs 0.025 m	Beam thickness: hb 0.007 m
Angle of contact surface: η 30°	Poisson ratio: 0.3	Stagger angle: β 30°