Extension and application of a scaling technique for duplication of in-flight aerodynamic heat flux in ground test facilities

To enable direct experimental duplication of the inflight heat flux distribution on supersonic and hypersonic vehicles, an aerodynamic heating scaling technique has been developed. The scaling technique is based on the analytical equations for convective heat transfer for laminar and turbulent boundary layers that follow from applying the...

An interface agent for attention manipulation [Extended Abstract]

This paper describes the idea of an interface agent that is able to manipulate the visual attention of a human, in order to support naval crew in a tactical picture compilation task. The agent will consist of four submodels, including a model to reason about a subject’s attention. In a study (not presented here) a practical case study was...

Specification of needs statements for training simulation development, verification and validation

The first step in any system life-cycle is the specification of a needs statement. Such a statement expresses the need for a system in terms of the problem that has to be addressed, how the system will be deployed to address the problem (i.e. intended use), and an initial (user) requirements specification and constraints for an appropriate...

Verification and validation of SAFESPOT vehicle based applications

The SAFESPOT integrated research project developed a Safety Margin Assistant (SMA) based on vehicle to vehicle and vehicle to infrastructure communication, which extends the driver’s awareness to prevent in advance road accidents. The development of the SMA done in parallel by many partners on different sites needs to be unified by the testing...

Study of an automated procedure for a Dutch sentence test for the measurement of the speech reception threshold in noise

A procedure was developed for the automated measurement of the speech reception threshold in stationary noise (SRTn), which can be administered by the subjects themselves using a computer. The procedure was based on the SRTn test for Dutch developed by Plomp and Mimpen [(1979). “Improving the reliability of testing the speech reception threshold...

C++ based design flow for reconfigurable image processing systems

In this paper a new hardware-software co-design flow for FPGA based image processing systems is described. This flow is fully C++ based and allows specification, verification and semi-automatic generation of all necessary software and hardware components. It allows the involvement of algorithm developers in the majority of the design stages,...

Algebraic software analysis and embedded simulation of a driving robot

At TNO Automotive the Generic Driving Actuator (GDA) is developed. The GDA is a device capable of driving a vehicle fully automatically using the same interface as a human driverdoes. In this paper, the design of the GDA is discussed. The software and hardware of the GDA and its effect on vehicle behaviour are analyzed from a safety point of...

Efficiency control of cathodic protection measured using passivation verification technique in different concrete structures

It is well known that cathodic protection is the most useful method for stopping corrosion when the deterioration process has started, but the most important issue that is still missing in the cathodic protection studies is how to check its efficiency in a reliable way. This paper presents results of the protection efficiency obtained in...

The DARWIN breadboard optical delay line verification programme

TNO, in co-operation with Micromega-Dynamics, SRON, Dutch Space and CSL, has designed a compact breadboard cryogenic delay line (figure 1) for use in future space interferometry missions. The breadboard (BB) delay line is representative of a flight mechanism. The delay line has a single stage voice coil actuator for Optical Path Difference (OPD)...

WEAG THALES JP11.20 (REVVA) Results and Perspectives

Within the WEAG THALES Joint Program 11.20 "Common Framework for Verification, Validation, and Accreditation of Simulations" (nicknamed "REVVA") between Denmark, France, Italy, Sweden, and The Nether-lands, a new customer-based and product-oriented VV&A methodology was developed. It includes: (1) The REVVA Generic Process, a stand-alone VV&A...

WEAG THALES JP11.20 - Final State of the REVVA Methodology

Under the umbrella of the Western European Armament Group's THALES Memorandum of Under-standing, a "Common Framework for Verification, Validation, and Accreditation of Simulations" (nickname "REVVA") was developed and stabilized during the period March 2003 through October 2004. Within the Joint Program between Denmark, France, Italy, Sweden,...

Digital human modelling systems: A procedure for verification and validation using the F-16 crew station

Digital Human Modelling Systems (HMS's) are considered a basic element in the cockpit design process. Their bio-fidelity has yet to be fully demonstrated, however. Currently, a joint project, undertaken by the Air Force Research Lab (AFRL/HECP) and the Netherlands (TNO HFRI), is addressing this issue. This effort will help improve methods for...