Functional area: Atlas Copco, Tightening technique
Recruiting Manager: Mayank Kumar
Phone: +46 (0)72 145 9613
Education requirement: Mechatronics / Electronics Engineering
Level of thesis project: Master thesis
Number of people needed: 2
Developing the control system for the Pin-on-Disc tribometer, which is used to measure friction in the contact at variable speed and load profile in a short time interval.
During tightening of a screw, the variation in friction will affect the force acting on the joint, especially when tightening using torque as a control parameter. Since friction is such an important factor when aiming for a specific clamping force, it is of interest to simulate the contact and friction in the screw head to joint, and thread interfaces. This will lead to a possibility of gaining a deeper knowledge of friction characteristics when tightening, and how the dynamic friction relates to different coatings/ materials and screw geometries. In the end, it will enable us to develop tightening strategies that compensate for the friction variation to assure a better quality of the joint. Understanding friction behaviour will make it possible to influence the quality of the assembly.
Design a robust and flexible control system for the Pin-on–Disc machine. Evaluate different controller strategies to obtain the best tracking performance for both the pin and the disc actuation. Evaluate the different sensors relevant to the study of friction.
Take the opportunity to write your master thesis with our engaged team and contribute to the research we are conducting within future tightening techniques!
To be able to contribute to this project, the student shall be a highly motivated and creative person. The person shall have skills within;
- Mechatronics/ Electronics
- Well versed in control theory, MATLAB and Simulink
- Relevant knowledge in sensors
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