Freeform optics design tool for compact spectrometers

We present a novel optical design tool that makes use of an evolutionary global optimization algorithm. The algorithm has several characteristics that make it well-suited for freeform optics design. With the design tool it is no longer necessary to make the distinction between paraxial degrees of freedom and degrees of freedom related to...

Secondary debris effects on personnel

Effects of munitions during operations in urban terrain are critical not only for enemy and allied soldiers but also to civilians. Besides the primary weapon effects caused by penetrating fragments, and blast overpressure; secondary effects from wall debris may contribute to the damage process. To identify valuable topics on personnel vulnerabil...

Towards a flexible fast-running blast effects module for V/L TARVAC

TNO is developing a flexible blast effects module suited to be used in simulations of MOUT scenarios within a VL simulation environment for assessing structural damage and human injuries due to blast load-ing. VL simulations should run in seconds to enable Monte Carlo simulations as well as deal with various ammunition – target engagement...

Consequence analysis methodology for building damage prediction due tot external blast

Safety evaluation, risk assessment and decisions on prevention and protection measures require simple fast running methods. It is a challenge to develop a consequence analysis method that is relatively simple, but still has the ability to discern between different cases, scenarios and buildings. In the past years, TNO has participated in the FP7...

Residual capacity of a damaged water mist system

Navies have been facing budget reductions over the past decade. Since crew size is a major cost driver, this has led to efforts to reduce manning on board naval ships. Traditionally, damage control and firefighting were manpower intensive operations. To enable crewing level reductions without compromising the ability to deal with damage and...

Fire protection in ammunition storage spaces on board naval craft: An evaluation of the water application rate

Ammunition storage spaces on naval vessels are commonly fitted with drencher systems that are designed to prevent ordnance reaching a temperature where it might explode due to fast or slow “cook‐off”. Many of these systems are traditional low pressure water spray systems that are required by the Naval Ship Code and class requirements to deliver...

FP 7 SPIRIT project concerning infrastructure protection

SPIRIT is an acronym for Safety and Protection of built Infrastructure to Resist Integral Threats. Within the 7th framework of the EU, the SPIRIT consortium was formed to bring the required expertise regarding protection of infrastructure against terrorist threats together, to make these commonly available and to find solutions that can be...