AEROSPACE & DEFENCE

Aerospace Industry Engineering Analysis

TriVista provide expert engineering analysis services for the Aerospace industry

Aerospace and defence companies both have to design for high performance in demanding operational and environmental conditions. These industries are currently seeing opposing market forces with defence budgets constrained but commercial aerospace seeing business expanding. Defence companies currently face the challenges of: tighter defence spending; changing equipment requirements and technology advances. Commercial aerospace manufacturers face the continued demands of: optimising comfort, improving safety, decreasing weight and reducing noise. Both these industries face demands for improved: fuel efficiency, environmental impact, innovation and significant evaluation of the greater use of composite and advanced materials are presently in progress. Modern engineering analysis tools such as finite element analysis (FEA) are invaluable for studying the structural strength and durability of components using potential new materials.

Our engineering analysis expertise has assisted many companies in the aerospace industry supply chains evaluate the durability and effectiveness of its products under the relevant demanding performance and environment conditions. We have typically been required to checked compliance against relevant defence standards (DEF-STAN # & MIL STD #) or manufacturer specifications. These projects have primarily had objectives of either proving the durability and effectiveness of a product in the deployed military environments or optimising the performance.

Over the years, TriVista has performed a wide range of engineering project analyses in supporting many companies in the defence sectors and aerospace industry supply chain. A few examples of these projects are follows:

Land: Evaluation of armoured vehicle sub-system structural integrity under operational, shock and vibration loads; defence test rig support identifying causes of test failure under different conditions and redesigning the test rig to suit; various defence land support system projects (e.g. radar, auxiliary power units, generators, air handling units, condenser, compressors) assessing pre-qualification structural integrity under shock, vibration, transport bumps and buckling loads plus fatigue evaluation.

Sea: FE analysis of naval vessel system stress levels and deformation under deep water, shock and vibration loads; evaluate reduction of exhaust gas and metal temperatures (heat signature) for marine naval vessel power system; quantify ducting pressure loss and flow distribution to inlet of naval gas turbine power generation unit, Naval radar system vibration and shock loads.

Air: failure investigation of helicopter sub-system for shock, operational loads and blade containment; aerospace propellant tank expulsion and sloshing analysis; underwing pod structural integrity under operational vibration, endurance vibration, shock and aerodynamic loads; evaluation of aircraft heater systems pressure loss, flow and temperature distributions under various operating and failure cases; flight simulator motion / kinematic analysis with transient calibration of the motion versus recorded test data.

Our engineering design and analysis team routinely work with clients in providing realistic solutions of genuine commercial value. Typical Finite Element (FE) analyses previously performed on these projects are as follows: structural integrity assessments under shock, vibration, operational and transport ‘bump’ loads; transient dynamic analyses (shock spectrum, time history & PSD loading); buckling analyses; modal (natural frequency) analyses; transient structural analyses; thermal analyses; linear and non-linear analyses; linear static with contact analyses on solid, shell & beam assemblies; non-linear materials including composites & large deformation; failure identification; novel product development and fatigue studies (cumulative fatigue damage calculations) for product life prediction.

Computational Fluid Dynamic (CFD) analysis projects have typically evaluated: pressure loss, flow and temperature distribution under various operating conditions; evaluation of flow uniformity; quantify aerodynamic loading; thermal analyses evaluating temperature distributions in both gas flows and adjacent solid components; evaluation of water injection cooling with phase change; tank expulsion and sloshing analysis; multiphase flows; concept evaluations or what-If studies; and optimisation or parametric studies.

Advanced analyses have also been performed involving coupling FE and CFD analysis codes for flow-structural interaction (FSI) and flow induced vibration (FIV) plus fatigue studies. Transient motion or kinematic analyses have also been performed and calibrated to test data.

TriVista uses the market leading ANSYS software tools. If you would like to know more please feel free to call or email (contact details below). Our experienced engineers will be happy to advise you, without obligation. Alternatively, you may prefer to use our simple enquiry form.