House of Dancing Water Controllers
Eight platform stage lifts travel vertically 26 feet underwater and then rise one foot above water to convert an aquatic stage to a solid dry floor in the House of Dancing Water theatre (Macau, China.)When the 6,441 sq. ft platforms transition from traveling through air to traveling through the water, the hydraulic system must adapt to the huge drag from the water. The unique hydraulic system parameters and algorithms provided in the Delta Computer Systems controllers were up to the task.
A dozen Delta RMC150 electro-hydraulic motion controllers were used to control the hydraulic cylinders that moved the eight stage platforms and three stage entrance hallway platforms. Each of the moving platforms is lifted by four long Parker-Hannifin hydraulic cylinders, one at each corner.
Closed-loop motion control is required for two main reasons:
1) The motion of the four cylinders on each platform needs to be synchronized to ensure that they all move by the same amount, to avoid racking of the platform frames and keep the platforms perfectly flat at all times. The Delta controllers support a special synchronization function for this purpose. The motion of each cylinder is tightly controlled to follow commands from a “master”
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Posted by Bruce at 17 Oct 2011 
Categories: Entertainment Engineering
Tags: House of Dancing Water stage lifts hydraulic stage lifts Delta RMC150 electro-hydraulic motion control Parker-Hannifin Delta Computer Systems closed-loop motion control
Categories: Entertainment Engineering
Tags: House of Dancing Water stage lifts hydraulic stage lifts Delta RMC150 electro-hydraulic motion control Parker-Hannifin Delta Computer Systems closed-loop motion control
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