The coude azimuth carousels mechanical design utilizes a load sharing system via adjustable “truck” bearings to help account for uneven load distribution and varying stiffness across the structure.
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The adjustability of the bearings are from a wedge mechanism that sits between the coude platfrom and the truck block.
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The load of the coude structure is spread across 96 truck bearings with the following arrangement and spacing.
To identify the peak loads on each truck bearing a weigh station/load sensing system was implemented to verify operating and performance requirements, though currently the system is used for preventive maintenance. The load sensing system basically consist of a load cell sensor situated under the rail and connected to a charge amplifier.