Paper 13099-30
Dynamic simulations, jitter analysis and vibration budget for tracking performance optimization of the Giant Magellan Telescope mount
17 June 2024 • 17:10 - 17:30 Japan Standard Time | Room G219, North - 2F
Abstract
Self-induced vibrations along with wind-induced jitter are considered as most limiting factors for the performance of the Giant Magellan Telescope (GMT).
The status of dynamic analysis in context of the latest GMT mount design activities will be reported. Particular attention is paid to the vibration error budget, which is used to manage active disturbances in order to meet demanding tracking performance requirements. The vibration budget is based on tracking simulation results combined with contributions from different jitter and vibration sources such as drives, utility wraps, cabinets and many other subsystems. The Mount Transfer Function (MTF) concept as an important tool for analysis of vibration paths from the source to the image motion is introduced and its application in multiple use cases with both modeled and measured disturbances is illustrated.
Presenter
Alexei Ippa
OHB Digital Connect GmbH (Germany)
Alexei Ippa is a simulation engineer at OHB Digital Connect (formerly MT-Mechatronics) in Mainz, Germany. He joined the company in 2011. In this role, he has contributed to several optical and radio telescope projects, including DKIST, MeerKAT Extension (SKA), and GMT. His professional focus is the modeling and control of complex mechatronic systems