Aircraft design software developer MacNeal-Schwendler (MSC) has introduced a new tool for calculating and visualising external loads, as well as flutter and dynamic loads.
MSC's FlightLoads and Dynamics tool has been designed to enable engineers to create a master model for internal and external loads calculations.
Boeing and Lockheed Martin are using features of FlightLoads in the design of their competing Joint Strike Fighter candidates, while Northrop Grumman is using the system in the development of an unmanned combat air vehicle, says MSC.
"Historically, external loads calculations and internal stress computations were performed in different systems," says the Los Angeles-based company.
Transfer of data between the external loads and dynamics models and the more detailed model used for internal stress analysis is time-consuming and error-prone, the company says, noting that, with its design tool, calculations are performed in the same system. A single model will cut costs, avoid errors and compress the design cycle, MSC says.
Using FlightLoads with existing stress and dynamics analysis tools will enable engineers to view and manipulate an aeroelastic model of the aircraft, which links aerodynamics with structural response, the company says. The new tool allows simple aerodynamic and structural models created in concept definition to be updated and enhanced during design. It will also make possible the reuse of aerodynamic and structural response data when designing derivatives.
Source: Flight International
