NEi Nastran customers in the aerospace industry routinely address
issues
related to: |
• |
Full
aircraft modeling, structure, engines, flight controls, landing
gear, and stores/devices |
• |
Full
spacecraft modeling, structure and mechanisms, attitude dynamics,
solar panels, and ground support equipment |
• |
Structural
and dynamic design and analysis of composite structures including
honeycomb panels, complex laminations and 3D micro models of joints,
failure zones, etc. |
• |
Linear
and nonlinear simulations of large deployable space structures such
as solar sails, space radars, and reflector antennas including,
large displacement effects, pre-stress and low frequency vibration |
• |
Performance
assessment of various aircraft components, such as a bulkhead under
pressurization, wing and skin panel buckling, and delamination of
bonded joints |
• |
Bird
strike simulations |
• |
Thermo-mechanical
simulation of aircraft engines and rocket motors under different
operating conditions |
• |
Verification
of turbine blade designs |
• |
Simulation
of various aircraft mechanisms such as landing gears, wing flaps,
and cargo doors |
• |
Fatigue
and fracture mechanics assessment of aircraft fuselage and wing
components |
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Topology
optimization of aircraft fuselage components |
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| NEi Nastran
product suite key benefits for aerospace applications: |
• |
Comprehensive
interactive tools necessary for model creation, analysis
monitoring, and results evaluation including a state-of-the-art
analysis editor. |
• |
Specialized
industry-proven element technologies, including hybrid
quad and hex elements and advanced tension-only shell and cable
elements. |
• |
High
performance processing including advanced parallel PCG
iterative, sparse direct, and block Lanczos solvers which allow
solutions to large-scale models over 10 million degrees of freedom
on inexpensive 32-bit Windows workstations as well as high end 64-bit
Linux clusters. |
• |
Robust
contact capability using a 3D surface contact method which
easily handles dissimilar meshes between components including frictional
effects. |
• |
Basic
through advanced material models, including temperature
dependent materials, non-linear elasticity and plasticity effects,
creep, and thermo-elasticity. |
• |
Substructuring and Model Reduction allows the creation
and reuse of substructures to improve the efficiency of large analyses
and provides a convenient method to transfer model data to subcontractors. |
• |
Submodeling,
allowing in-depth evaluation of particular regions. |
• |
Load
and Boundary Condition Interpolation allows mapping of
thermal and CFD output from specialized heat transfer and fluid
dynamic models to the structural model for load and boundary condition
definition. |
• |
Inertia
relief capability allows the quasi-static simulation of
forces acting on an unconstrained structure such as aircraft in
flight or a submerged submarine. |
• |
Multiple
subcase capability provides a highly efficient technique
to evaluate the response of structures to many different load cases
and boundary conditions. |
• |
Extensive
composite material support, including, 2D orthotropic,
3D orthotropic, general anisotropic, laminate lay-up definitions,
and a wide range of failure criteria. |
• |
Advanced
solution sequences, such as, linear and nonlinear static,
transient dynamic, steady state dynamic, frequency extraction, heat
transfer, and other analysis types, provide a choice of appropriate
analysis types for different types of simulations. |
• |
Integration
with specialized fatigue applications, such as, Winlife,
which is available as an add-on to the NEi Nastran product suite and also fe-safe, nCode, Falancs and FE-Fatigue. |
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