ADAMS/Aircraft MSC.ADAMS Industry–Specific Product
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PRODUCT ADAMS/Aircraft MSC.ADAMS Industry–Specific Product TESTS AND MANEUVERS FULL-VEHICLE TESTS THE VIRTUAL PROTOTYPING ENVIRONMENT FOR • Ground Tests AIRCRAFT DESIGN AND TESTING - Ground attitude - Carrier pre-launch attitude - Dynamic tipback • Taxi Tests - Dynamic taxi - Shimmy - Turning - Braking Current ADAMS/Aircraft products allow full-vehicle landing and taxi simulation. Users can build, - General pilot maneuvering test, and refine their designs using the Functional Digital Aircraft.™ • Landing Tests With ADAMS/Aircraft, engineering teams can quickly build and test - General landing functional virtual prototypes of complete aircraft and landing gear. This - General pilot maneuvering helps cut time, cost and risk in aircraft development and improve the quality of new designs. • In-Flight Tests Using ADAMS/Aircraft Landing Gear, the specialized aircraft and - Retraction landing gear simulation software from MSC.Software, an engineering team can quickly build a complete, parameterized model of a new - Extension aircraft, easily defining its landing gear layout, wheel arrangement, energy absorption, and other vital characteristics. - General maneuvering Then, without leaving their engineering workstations, the team’s members can run the model through a battery of kinematic, static, and LANDING GEAR TESTS dynamic simulations to determine the vehicle’s flotation, stability, loads, • Steady axle loads passenger comfort, and more. Test measurements can be analyzed immediately and test equipment can be quickly modified. • Retract / extend The key is that all this is done on the computer where the team can • Drop refine and optimize the performance of its landing gear design before cutting a single piece of metal or running a single physical test. WHEEL TESTS • Single tire tests TEST AND CERTIFY THE RIGHT DESIGNS Millions of dollars and years of effort are put into building the first physical prototype of an aircraft design. Building a number of alternatives is prohibitive in cost and time. But with simulation, a variety of designs can be quickly built and tested under the same conditions as the physical prototype. The result is an environment where the right designs can be determined without this extensive time and cost investment – a process that reduces the risk when you build the physical prototype. ADAMS/Aircraft is built upon MSC.Software’s flagship MSC.ADAMS product widely recognized as the world’s leading mechanical system simulation tool. SUBSYSTEM TEMPLATES NOSE AND MAIN LANDING GEAR • Tripod • Trailing arm • Post NOSE AND MAIN WHEEL ARRANGEMENTS The ADAMS/Aircraft software suite will consist of modules to be used separately or in combination for • Nose single and double complete aircraft simulation. • Main single MSC.ADAMS has demonstrated DESIGNED FOR AND BY AIRCRAFT accuracy in modeling a wide ENGINEERS • Main double spectrum of complex system Development of ADAMS/Aircraft • Main 2 x 2 problems, so you can believe the grew out of several challenges results you see. And MSC.ADAMS faced by aircraft manufacturers. • Main 2 x 3 features the most robust solution With the down cycles seen in the capability to be found, so you can aerospace industry, companies had AIRFRAME be assured that all design variations a difficult time retaining the process • Rigid can be accurately compared. and design knowledge that went into their aircraft designs due to • Flexible ADAMS/AIRCRAFT PROVIDES downsizing and experienced • Military and civilian CAPABILITIES TO: personnel leaving for other industries. Then boom cycles would • Quickly build, test, and refine come, and the industry had difficult GENERAL aircraft landing gear designs, times ramping up their personnel to • Wheel/tires for handling, durability exploring many “what-if meet market demand for new alternatives.” A user can, for airplanes. • Retraction and lock example, change a strut metering pin with only a few mouse clicks, Recognizing that the software • Controls instead of waiting for a mechanic architecture from ADAMS/Car could to install a new metering pin, as be leveraged into the aircraft • Brake required with physical testing. design process, MSC.Software • Hydraulics worked with key customers to • Run designs over a variety of identify the requirements for an • Testrigs conditions, without having to aircraft template-based product. duplicate those conditions with One of these key customers expensive tests. For example, an was Lockheed Martin ice-covered runway or a special Aeronautics in Ft. Worth, runway such as San Francisco Texas. Lockheed Martin had can be tested and compared an initiative to build aircraft with baseline results in minutes, and preserve the process instead of waiting months for the and design knowledge for up right test conditions. to 50 years – much longer than the cycles seen in the • Directly compare the critical data general aircraft market – to from different virtual tests with satisfy their military side-by-side animations and plot customer’s maintenance families, which can be done needs. As part of the quickly using predefined plot templates. The result is an ADAMS/Aircraft provides environment that allows you to software for designing landing gear and build and compare hundreds of studying full-vehicle dynamics. Flexibility, controls, hydraulics, durability, and different aircraft and landing gear vibration analysis can also be systems, all before you commit accommodated. In this drop test sequence, nose gear strut compression the physical prototype to can be seen. manufacturing. ADAMS/Aircraft’s user interface is designed specifically for aircraft simulation. Menu selections highlight functions already familiar to aircraft engineers, so they can quickly become proficient with the ADAMS/Aircraft Highlights software. ADAMS/Aircraft can be further customized to support unique modeling and simulation COMPLETE SIMULATION SOLUTION approaches. • Component-level • Subsystem-level • System-level OLEO-PNEUMATIC MODELING Virtual Product Development automatically constructs subsystem • Equation-based Initiative, MSC.Software partnered models and full-system assemblies. with Lockheed Martin to assist in This helps assure consistency • Property file-based the detailed design and validation throughout the aircraft design. of the ADAMS/Aircraft Landing • Table-based Virtual Modeling Gear Module. To place components such as struts, actuators, and bushings in • Hierarchical structure subsystem models, users select TEMPLATES SIMPLIFY SIMULATION from ADAMS/Aircraft’s data libraries. • Interactive in both standard-user and Users of ADAMS/Aircraft select This speeds the modeling process, template-builder modes from two operational modes: saving users from having to enter all of the data associated with each • A standard interface, which allows component. Standardization and FILE-BASED MODELING users to enter model data at the consistency are thus assured. • Through subsystem files subsystem and assembly level to modify model • Through property files parameters PRECISE LANDING GEAR (hardpoint TESTING locations, ADAMS/Aircraft’s design DATABASE spring rates, tools include both nose and etc.) without main landing gear, modeled • Derived from ADAMS/Car affecting as a tripod, a trailing arm, model simple post, or other strut • Proven and commonly used topology, and arrangements. The shock run both This comparison of two drop test absorber can be modeled as results shows load levels in all standard and critical gear elements. an equation-based single or custom design dual stage air spring and oil EASY CUSTOMIZATION tests; and damper, a property file-based oleopneumatic, or a table-based gas • Open architecture • Template-builder mode, enabling spring or metered oil damper. User- • Dialog-box builder experienced users to build their defined strut models can also be own design templates from combined with the aircraft model. libraries of core and user-defined The analytical results from modeling elements. MSC.ADAMS have been validated against physical tests – so the ADAMS/Aircraft’s template-based results you get can be relied on for modeling and simulation tools accuracy when making design greatly simplify the tasks of aircraft decisions. design and testing. Users simply supply the required data to the templates, and ADAMS/Aircraft The landing gear can be attached to a loadstroke curve, hydraulic demand The result is a complete and consistent drop test rig and tested under various during retraction, and tire side forces, aircraft model that provides insight into drop mass and impact angle and use this test data to refine your the aircraft design – “complete” because combinations, duplicating the real-world designs, understand the sensitivities, all of the key design data, geometry, results with which manufacturers validate and tune the parameters. flexibility, controls, and hydraulics their designs. A retraction/extension can systems, can be integrated with the also be performed to size the actuators functional virtual prototype, and and hydraulic valves. INTEGRATION WITH CAD/CAE “consistent” because the data does not CAD and CAE software packages are have to be re-entered, and so the results Finally, the landing gear can be quickly used at aircraft companies to define will be consistent with an up-to-date attached to a rigid or flexible airframe detailed geometry, perform structural snapshot of your complete design. and put through the same paces the real analysis, or develop control and aircraft landing gear will experience: taxi, hydraulic systems designs.