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Globally Optimal Path Planning with Anisotropic Running Costs

The control-theoretic Ordered Upwind Methods (OUM) has been employed to solve a number of simple path planning problems.

Vehicle electronics and architectures research

Land System’s Engineer Angus Thomson discusses how DST is enabling future Australian Defence Force (ADF) land vehicles to be more capable and adaptable.

An Assessment of the Usefulness of Water Tunnels for Aerodynamic Investigations

Water tunnels have some definite advantages over wind tunnels for aerodynamic testing of models. Water tunnels are generally better suited to carrying out fundamental research than they are for applied aerodynamics testing.

A Demonstration using Low-kt Fatigue Specimens of a Method for Predicting the Fatigue Behaviour of Corroded Aircraft Components

Development of a Monte Carlo model of the fatigue life of corroded specimens of aluminium alloy 7010-T7651. The model simulates both the alloy’s metallurgical inclusions and corrosion pits using extreme value statistical distributions.

Retrogression and Re-Ageing In-Service Demonstrator Reliability Trials: Stage III Component Test Report

Retrogression and Re-ageing (RRA) technology is a two stage heat treatment of 7075-T6 aluminium alloy used to improve corrosion resistance while retaining MIL-HDBK-5J structural properties. Trials demonstrated that the RRA process as defined in the Stage III Process Specification had a reliability in excess of 95%.

Modelling of a Bi-axial Vibration Energy Harvester

This report fully details the techniques involved in the modelling of a nonlinear and bi-axial vibration energy harvesting device.

Simulation Trial Results for the Cooperative Autonomous Underwater Vehicle Demonstration (SA15)

A simulation trial was conducted to test the connectivity between the two heterogeneous software systems that were part of a cooperative Autonomous Underwater Vehicle Demonstration being undertaken by the Australian and Singaporean defence science agencies.

A Comparison of Civil and Military, European and United States Regulations and Standards for the Certification of Helicopter Structure

This report details a comparison of a range of civil and military, United States and European regulations and structural certification standards for the fatigue substantiation of rotary wing aircraft structure.

Determination of Benzalkonium Chloride in Commercial Disinfectant Formulations by Quantitative NMR Spectroscopy

A biofouling treatment protocol for Royal Australian Navy vessels involves dosing with commercial disinfectant solutions containing the biocide benzalkonium chloride (BAC). In this work a single pulse proton Nuclear Magnetic Resonance (NMR) spectroscopic method was developed in order to permit the determination of BAC content in commercial formulations without suppression of the water resonance.

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