ESA – Fringe of earthquake zone

Because the earthquake-strength Hydra shaker desk simulates the vibration forces of a rocket launch for satellite tv for pc testing, it is just this concrete block and the dampers and is derived supporting it that stop the remainder of ESA’s ESTEC Take a look at Centre from additionally struggling the shakes.

Probably the most highly effective and exactly controllable of the shaker tables ESA makes use of for satellite tv for pc testing at its Take a look at Centre in Noordwijk, the Netherlands, the multi-axis Hydra is able to vibrating check objects weighing many tonnes.

Seen from the cleanroom above, the hydraulically-powered Hydra seems to be merely 5.5 x 5.5 m aluminium platform mendacity flush with the ground. However this plate is just the highest of an 18-tonne check desk which is moveable utilizing eight hydraulic actuators, in the identical method as a flight simulator machine.

This check desk is enclosed inside a 1400-tonne concrete ‘seismic basis’ block, one nook of which is seen right here. This block rests in activate the set of springs and dampers seen on the backside, which isolate it, stopping probably damaging vibrations from spreading by means of the remainder of the constructing.

Operated for ESA by European Test Services, the ESTEC Take a look at Centre is the biggest facility of its variety in Europe, offering an entire suite of kit for all facets of satellite tv for pc testing below a single roof. You possibly can go to ESTEC throughout this yr’s ESA Open Day within the Netherlands, going down on the primary weekend of October.