test the ELR unit by simulating with crash sledge facility
control desk to be installed in the control room. Light control unit consists
of 9 sets of electrical contactor to control the power supply to various
light units on the light frame. Two light frames are provided each carrying
12 nos. of light units. The Light control unit is mounted near to the
crash barrier on the sled track.
drive motor is anchored on the floor at the one end of the Sled track.
The drive motor is provided with the magnetic brake, a gear and Pulley
set to drive the sled using a wire rope and a hook. The hook and a wire
rope coupled to the clamp on the sled using pneumatic cylinder.
instrumentation system consists of a fast transient recorder for data
acquisition. The transient recorder is connected to various sensors on
the sled. The various sensors are :
- Displacement transducers
- Optical Sensor for speed measurement
- Optical Sensor for Trigger
Crash Test System is provided with visual and audible annunciators for
safety of operating personnel during the testing. The test sequence is
interlocked with doors to ensure proper operation of the system with safety
pneumatic subsystem consists of FRL unit and cylinders cylinders are used
to brakes and to operate the holding clamp. The sled is moved along the
track in manual mode to the operator console. The movement of the sled
between the Bunghee chords pulley assemblies on the track.