Thesis Work for Robotics R&D - Modelling of compact gears in Finite Element Models i Västerås

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Within ABB Robotics R&D Mechanical Analysis development group we are responsible for simulating, optimizing and calculating the Manipulators, the mechanical robot products, to achieve a proper balance between performance, strength, quality and cost. We continuously develop new types of manipulators consisting of motors, gears and actual arms. When modelling structural arms one challenge is to build an accurate model with reasonable time spent on both modelling and solving the model. With the continuously optimization of components the impact on the results from the relative stiffness of the components increases.
One of these components is the compact gears which are used on most axes on a modern industrial manipulator.

The goal of this thesis work is to investigate different concepts of modelling of compact gears in Finite Element models with reasonable effort for model building that suits the everyday work. These models are then verified by strain measurements on actual manipulators that we have in our laboratory. The software used for modelling is Ansys.

Details:
• Period: January-June 2020
• Number of credits: 30 ECTS/högskolepoäng(hp)/master thesis
• Number of students: 1 student
• Location: Most time on site, Robotics R&D office at Finnslätten, Västerås

• Investigate concepts for modelling of compact gears.
• Build Finite element models of selected concepts.
• Evaluate results and compare to already done strain measurements.
• If needed, do more measurements on robots together with lab technician to verify model.
• Evaluate and suggest working method based on the tradeoff between time spent to model and simulate, and the accuracy of the results.
• Living ABB’s core values of safety and integrity, which means taking responsibility for your own actions while caring for your colleagues and the business.

• Master student in Mechanical engineering, Technical physics or program with similar profile, with orientation towards mechanical analyses and calculations.
• Basic knowledge of the Finite element method and machine elements is required.
• Experience of Ansys is an advantage.
• You are self-driven, structured and analytical.
• Fluent English in speaking and writing, English is the corporate language and used for all documentation.