a pulsating pressure in a gyro model in ABAQUS in different frequency

Hi, in project: https://www.freelancer.com/projects/CAD-CAM/pulsating-pressure-gyro-model-ABAQUS/#/management/142604060 is a model in abaqus named "Gyro 200 [login to view URL]" where the center mass (middle cylinder) is being moved by four pressures sufaces to generate percession of the middle mass. For some reason it doesnt work well as it is defined. you need to: 1. fix the model. so the percession is done. 2. write a step by step documentation file of what you did.(with snapshots of the screen)