Vibration & Shock Technologies
Pneumatic Shock Machines
The VST pneumatic shock machine is available in multiple
configurations. These
machines will produce a shock pulse in the vertical direction using
compressed
air to force the carriage to impact on the shock machine base.
Elastomer pads
are used between the carriage and the base in the impact area to
produce
half-sine pulses, lead pellets for saw tooth pulses and pneumatic
cylinders for
square pulses.
The design of the programmers affect the time duration of the pulse while the air pressure and drop height are used to accelerate the carriage to determine the magnitude of the shock pulse. The basic structure of the machine is a heavy steel weldment filled with reinforced concrete which will not deteriorate under repeated shocks. The structure contains sufficient mass so that no additional ballast will be required. The structure is supported on four passive air springs with dampers to isolate the shock from the floor. The test item is mounted to a solid carriage with heavy duty steel inserts in the top surface. The carriage is supported and guided by the lifting and driving piston rod. Friction brakes are used as a rebound brake and as a quick release device.
A computer control platform is used to provide a single point for shock machine set up and data analysis. The Mousetrap Amplifier option can be combined with the Pneumatic Shock Machine. VST also offers a Vertical / Horizontal version of the pneumatic shock machine. Each machine is equipped with an air amplifier for pressure requirements greater than available house pressure. All machines are equipped with a PC-based integrated machine control, data acquisition and analysis platform. The machine can be run remotely via a remote desk top application.
