| Courtyard Hamburg City, Hamburg, Germany
Workshop day, Thursday, 14 May 2020
7:30 am - 8:00 am
Registration and welcome coffee
8:00 am - 10:00 am
Bearing main shaft design concepts to best satisfy the new requirements
Fréderic Platz -
Principal Application Engineer and Project Coordinator Wind Energy,
Timken Europe
Bearing design involves a significant number of often conflicting parameters, with improvement in one feature resulting in deterioration in another. With continuously growing size of wind turbines and blades, the requirements for bearing design have changed and bearing design concepts have to be reviewed. What are the major challenges in bearing design for bigger wind turbines and what are the appropriate main shaft bearing design concepts to meet the new requirements?
• Historical look at all the main shaft configurations in use today
• Direct drive and gearbox driven turbines – Advantages and disadvantages of different bearing configurations
• Trend towards widespread two single row tapered roller bearing
• Rationale behind this design configuration for larger turbines
Fréderic Platz
Principal Application Engineer and Project Coordinator Wind EnergyTimken Europe
10:00 am - 10:30 am
Coffee break and registration for workshop C
10:30 am - 12:30 pm
Remanufacturing of bearings
When a bearing approaches the end of its service life, which currently is the case in most onshore wind turbines, replacement seems logical. Instead, remanufacturing bearings is quicker than the lead time on key components, reducing potential periods of downtime as the current delivery time of bearings can be up to 5 -6 month. This can add up to cost savings of 50 percent
• Bearing are taken apart and assessed to determine their condition based on standards set by the manufacturer
• Repairing of the bearing to the original condition
• Data from other industries: railway – Automotive: USE CASES
• Reliability up to zero room for error (aviation)
12:30 pm - 1:30 pm
Networking luncheon and registration for workshop D
1:30 pm - 3:30 pm
New approaches in validation testing of bearings
Eric Putnam -
Team Leader Component Structure Testing,
Force Technology, Denmark
• What is the risk profile of the end product?
• Project on different testing methods: Design of the testing program
• Demo cases: Industrial bearings influence on development projects
• Modelling – certification
• Future direction
3:30 pm - 4:00 pm
Coffee break and registration for workshop E
4:00 pm - 6:00 pm
Time history of rolling element contact pressure in pitch bearings and influence of surrounding structures
Lorenz Meesenburg -
CTO,
P.E. Concepts GmbH
• Contact pressure history for oscillating bearings
• Influence of surrounding structures on contact pressure history
• Modified reference rating life for oscillating bearings
