Posts Tagged ‘aerospace’
Detailed part analysis and optimization involves the creation of sub-models, or breakout models, extracted from global or internal loads models. The creation of these sub-models can be difficult and time consuming using traditional methods. Utilizing Free Body Diagram (FBD) concepts, one can simplify and streamline the understanding, creation and setup of breakout models. FBDs allow the user to understand load paths and to create free body loads of interest for detailed models as boundary conditions (BCs) within a sub-modeling scheme.
FBDs also allow for equivalent force and moment results to be calculated on cross-sections for each loadstep. From these results, Shear-Moment Plots (VMT) can be created for determining maximum equivalent loads. These results can also be used to create Potato Plots for performing loadstep screening in advance of the detailed part analysis and optimization.
Tags: aerospace, cross-section, extraction, FBD, force, force extraction, free body, free body diagram, HyperMesh, loadstep, moment, optimization, OptiStruct, RADIOSS, resultant force
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This is an introductory course designed to use hands on exercises to teach and communicate the process for solving multi-body dynamics (MBD) problems using HyperWorks. This three day, instructor led, course includes:
- MBD model building techniques and strategies
- MBD model editing and checking
- Perform linear analysis on MBD models
- Model setup for various solvers
- CAD Import and Contact Simulation
- Flexible Body Generation and Flexible Body Dynamics Simulation
- Performing optimization and design of experiments on an MBD model
- Post-processing of both Rigid and Flexible Body Simulation Results
- Create result reports with HTML, Hyper3D, JPEG, and AVI files
- Visualize and share CAE results over the Internet
Using OptiStruct topology and shape optimization tools, Eurocopter created an innovative new design of a door support arm for the Fairchild Dornier 728 aircraft. The company achieved a weight reduction of approximately 20 percent, using structural optimization techniques as an integral part of the design process.
By Stuart Sampson
Program Manager – HyperMesh
Within the aerospace industry, a need arose to create a new fastener to replace the HiShear fastener, more commonly known as a rivet. The prefixed collar of the HiShear fastener limited its versatility. Prompted by this need, the HiLock fastener was designed. The collar of the HiLock is threaded and both the pin and the collar itself were designed to fulfill a wide range of applications and installations. The HiLock fastener also is easier to install and remove, eliminating the need for highly specialized tooling. Along with its expanded versatility comes the challenge to accurately model and simulate the HiLock fastener. Altair HyperWorks addresses this challenge by using the connector technology in HyperMesh to automate the modeling of this complex fastener.
The Hydraulic Systems Division of Eaton’s Aerospace Group designs hydraulic components and systems on many of the world’s military and commercial aircraft in the skies today. Eaton uses Altair HyperWorks within it’s simulation processes to improve solution efficiency and accuracy.