CAE analysis
Evaluation analysis from CAE analysis, proposal of optimum design
Utilizing our design experience in automobile development and railway vehicle development, from initial evaluation to proposal for improvement will be conducted.
Equipment owned by HIVEC
Solver
- Optistruct
- NX Nastran
- Abaqus
- RADIOSS
- LS-DYNA(External equipment)
- MotionSolve
- Inspire
- 3D-TIMON(External equipment)
Pre-post
- HyperMesh
- HyperView
※External equipment: Utilization of Hiroshima Digital Innovation Center (high-speed workstation, supercomputer, various solvers)
Kinds of CAE analysis
Kinds of CAE analysis
- Analysis type linear static analysis
- Linear buckling analysis
- Nonlinear analysis
・Material nonlinearity
・Geometric nonlinearity
・Boundary nonlinearity
- Heat transfer/thermal stress analysis
- Crash analysis
- Eigenvalue analysis
- Frequency response analysis
- Mechanism analysis
- Fluid analysis
- Resin flow analysis
(Case 1) Full-car model 50km/h front collision analysis
RADIOSS: Crash Analysis
(Prediction of car body crush amount)
(Prediction of energy absorption characteristics)
Example of a full car model collision analysis
<Created by the U.S. NHTSA and using public data >
Number of elements: 1,919,302 Number of nodes: 1,969,831
<Created by the U.S. NHTSA and using public data >
Number of elements: 1,919,302 Number of nodes: 1,969,831
Draw a vehicle deceleration displacement diagram (G-S diagram) from the analysis results and evaluate collision safety performance
(Case 2) Steering vibration analysis
Optistruct: Natural vibration analysis/Frequency response analysis
Example of steering natural vibration analysis with a trimmed body cut model
Number of elements: 411,031 Number of nodes: 443,135
Number of elements: 411,031 Number of nodes: 443,135
Draw the excitation point response function (FRF) from the analysis results and evaluate the idle vibration
(Case 3) Suspension link mechanism analysis
Motion Solve: Mechanical analysis
An example of link mechanism analysis using a suspension link model
Evaluate whether braking, driving, and turning forces can be properly transmitted to the road surface
(Case 4) Suspension arm strength stiffness analysis
Optistruct: Linear Static Analysis
Stress contour diagram
Stress contour diagram
Example of strength/rigidity evaluation by inputting a static load to a suspension arm
Number of elements: 13,637 Number of nodes: 23,681
Number of elements: 13,637 Number of nodes: 23,681
Draw a deformation diagram and stress distribution diagram from the analysis results and evaluate the strength
(Case 5) Steering boot large deformation analysis
Abaqus: Nonlinear analysis
Example of geometric nonlinear analysis on steering boot model
Evaluate the stress/interference when climbing over a protrusion by reproducing the compression expansion and contraction of the boot.
(Case 6) Resin flow analysis of automobile interior and exterior parts
3D-TIMON: Resin flow analysis
Example of resin flow analysis performed on a bumper mold model
Number of elements: 309,162 Number of nodes: 103,146
Number of elements: 309,162 Number of nodes: 103,146
Evaluate weld and warp deformation with molding conditions as parameters
(Case 7) Analysis of gas flow around a vehicle
AcuSolve: Flow analysis
Example of flow analysis performed on the exterior model of a community bus
Number of elements: 20,396,652 Number of nodes: 3,735,379
Number of elements: 20,396,652 Number of nodes: 3,735,379
Calculate the gas flow around the vehicle and evaluate the flow velocity/static pressure/Cd value
(Case 8) Heat transfer and thermal stress analysis of a vessel
ABAQUS: Unsteady heat transfer/thermal stress analysis
Deformation magnification: 5 times
Example of heat transfer and thermal stress analysis using a model in which the container is heated from the bottom
Number of elements: 316825 Number of nodes: 250817
Number of elements: 316825 Number of nodes: 250817
Evaluate thermal stress during heating transition by reproducing the thermal expansion of the time history during heating
