Accession Number : ADA321541

Title :   Shock Trials Trojka Drone; Measurements Shot 1, 2 and 3.

Descriptive Note : Final rept.,

Corporate Author : CENTRE FOR MECHANICAL ENGINEERING TNO DELFT (NETHERLANDS)

Personal Author(s) : Bosman, B.

PDF Url : ADA321541

Report Date : 02 AUG 1996

Pagination or Media Count : 265

Abstract : The Royal Netherlands Navy started a research project for modernizing the mine sweeping capabilities. A part of the project investigates the possibilities to use a system of mine sweeping drones which are unmanned and remotely operated, called Trojka system. Because the Trojka system will be exposed to severe underwater explosion shock loadings, extreme high demands were set with respect to shock resistance. In order to investigate the behaviour of the Trojka structure against shock load, underwater shock load tests were carried out on a full scale test model of the Trojka vessel. This report gives a description of the first series of shock tests. The project is done in close cooperation with the Wehrteehnische Dienststelle fir Schiffe und Marinewaffen (WTD71). The measurements have been carried out near Eckernforde, Germany. WTD71 did additional measurements as laser displacements, pressure transducers and accelerometers. This report only contains the measured results of TNO. In July and August 1996 only the first series of 3 shots have been carried out. The second series of 3 shots has been planned to take place in October 1996. The strain gauges were mounted by the Marine Electronisch en Optisch Bedrijf'(MEOB) as well as the cabling inside the drone. The measuring cables from drone to measuring ship were provided with connectors by the MEOB.

Descriptors :   *SHOCK RESISTANCE, *DRONES, *MINESWEEPERS, ACCELEROMETERS, NETHERLANDS, PRESSURE TRANSDUCERS, MINESWEEPING, PRESSURE MEASUREMENT, MODEL TESTS, STRAIN GAGES, UNDERWATER EXPLOSIONS, SHOCK TESTS.

Subject Categories : Undersea and Antisubmarine Warfare

Distribution Statement : APPROVED FOR PUBLIC RELEASE