NeiAcoustics

NEi Aeroelasticity

NEi Aeroelasticity (ZAERO) by ZONA Technologies Inc., has extensive capabilities in the areas of aero-elasticity, aeroservoelasticity, unsteady aerodynamics and structural dynamics.

NEi Aeroelasticity provides analysis capability for the following solution types:

Flutter

Static Aeroelastic

Aeroservoelastic

Flutter with Nonlinearity

Capabilities

Solution Features

Dynamic memory and database management system ensures program modularity and allows for virtually unlimited problem size

Executive control allows for massive flutter/ASE/trim inputs and solution outputs

Matched/non-matched point flutter solutions with true aerodynamic damping (includes a unique flutter mode tracking capability and flutter sensitivity analysis)

Steady/unsteady aerodynamics at subsonic, transonic, supersonic and hypersonic Mach numbers with no change to aerodynamic model

Loads and Boundary Conditions

Static aeroelastic/trim analysis for flight loads at symmetric, antisymmetric and asymmetric maneuver conditions
Dynamic loads
Flutter
Ejection
Maneuver
Gust
State-space aeroservoelasticity for stability analysis and gust loads

Performance and Control Features

Uses the most current advances in finite element technology
Extensive error checking at all stages of execution
Bulk data input is very similar to NASTRAN, cutting down learning time
Modal data importer automatically imports FEM modal data output directly from NASTRAN

Open architecture design allows the user direct access to all data entities (a completely programmable environment)
Definition of sound absorbing material properties with customizable libraries
Unified AIC matrices can be stored for repetitive structural design and analysis

Modeling Features

High fidelity geometry module allows for realistic modeling of aircraft configurations, including the fuselage, stores, nacelles, etc.

Output Features

3D spline provides accurate displacements and force transferal between structural FEM and aerodynamic models
Graphic output of aerodynamic model, unsteady pressures, interpolated structural modes, flutter mode animation, and more

Transient Heat Transfer

Linear and Non-Linear
Conduction, convection, and radiation

Buckling Analysis

Critical loads and mode shapes
Linear and nonlinear initial stress

General (Supported in all solutions)

Composite laminate materials
Temperature dependent materials
Direct matrix import & export (DMIG)