Is the movement of the steering wheel translation or rotation?

[Venus]

The movement of the steering wheel involves both translation and rotation. When the car is moving straight, the steering wheel undergoes translation; when turning the steering wheel, it undergoes rotation. The steering wheel is a wheel-shaped device used to control the direction of the vehicle. Its function is to convert the force applied by the driver on the edge of the steering wheel into torque, which is then transmitted to the steering shaft. It mainly consists of a frame, foam, and corresponding mounting clips or screw holes for the driver airbag (DAB). The steering wheel is generally connected to the steering shaft via splines. Using a larger diameter steering wheel reduces the hand force required by the driver to turn the wheel. The steering intermediate shaft serves as a connecting component between the steering gear and the steering shaft, facilitating the standardization of the steering gear, compensating for errors during manufacturing and installation, and ensuring a more rational installation of the steering gear and steering wheel in the vehicle.