How to apply a pressure load as a function of rotational velocity in ABAQUS?

[Shufen]

I am looking to study a centrifugal clutch in ABAQUS. I have attached the schematic of the system. In brief, a centrifugal clutch is a clutch to transmit torque from one shaft to another. As shown in the schematic, it essentially comprises two parts namely a clutch drum and a shoe that are coaxially fitted. The shoe comprises of four parts that are held in place by springs. As the inner shoe wheel rotates, the shoes displace outward due to centrifugal forces and presses onto the outer drum and torque is transmitted. I want to model this in ABAQUS to study the stresses induced in the outer drum. However, I want to do this very simple without having to consider any friction or coupling based on the following assumptions:
• The shoe and the drum are already in contact. The pressure of the shoes on the drum due to the spring force is provided as an initial boundary condition
• In the load step, the force of the shoes due to the rotation is simulated by apply a pressure boundary condition to the inner wall of the drum as a function of the rotational velocity.
It is the second step that I find difficulty in. Is there any way to define pressure load as a function of the rotational velocity. I looked into the UPSD subroutine where one can define response loading wrt to frequency in rad/s. Would it be applicable in my case? Please help me. I can write subroutines so suggestions via that are welcome.