Complete Update regarding the new Input Config
The Configuration File contains all information necessary for the algorithm to run through the optimisation. It is subdivided into different areas regarding the Geometry, Loads and Constraints, Cases (Events) and optimisation parameter. The file is written in JSON file format.
Based on the geometry data and the Configuration File, the algorithm can run fully autonomous and generate the result files in one subfolder each time it is started in the main folder.
The configuration file starts with the creation timestamp and also indicates the used unit system.
applicationRequest | OptimizationLoop | Indicates that the regular optimisation loop is executed |
automaticFunctionalFacesDetection.positiveNonDesignDirection | true | Functional Surfaces are automatically detected. These areas grow during an optimisation to guarantee sharp edges and functional surfaces after the intersection. If all functional surfaces have a Machining Allowance applied to them, this option should be deactivated. |
Loads and Constraints
The Loads and Constraints section collects all information regarding the loads and fixations applied to the different geometries.
boundaryCondition.<name>.geometryName | Name of a geometry entry to associate with. |
boundaryCondition.<name>.coordinateSystem | Name of a coordinate system described in the same file, used for describing constraints in local coordinates. |
boundaryCondition.<name>.load.x boundaryCondition.<name>.load.y boundaryCondition.<name>.load.z | x-direction of load y-direction of load z-direction of load |
boundaryCondition.<name>.displacement.x boundaryCondition.<name>.displacement.y boundaryCondition.<name>.displacement.z | x-direction of displacement y-direction of displacement z-direction of displacement |
boundaryCondition.<name>.moment.x boundaryCondition.<name>.moment.y boundaryCondition.<name>.moment.z | x-direction of moment y-direction of moment z-direction of moment |
boundaryCondition.<name>.acceleration.x boundaryCondition.<name>.acceleration.y boundaryCondition.<name>.acceleration.z | x-direction of acceleration y-direction of acceleration z-direction of acceleration |
boundaryCondition.<name>.pointOfApplication.x boundaryCondition.<name>.pointOfApplication.y boundaryCondition.<name>.pointOfApplication.z | x-direction of point of application y-direction of point of application z-direction of point of application |
boundaryCondition.<name>.pointOfApplication.coordinateSystem | Coordinate system related to the point of application |
boundaryCondition.<name>.pressure | value of the pressure force |
Example
"boundaryCondition": {
".index": 7,
"ModelConstraintEvent_Constraint_1": {
".index": 4,
"displacement": {
".index": 0,
"x": "0",
"y": "0",
"z": "0"
},
"geometryName": "ModelConstraintEvent_Constraint_1"
},
"ModelLoadEvent_Force_-Moment_1_Force": {
".index": 0,
"coordinateSystem": "CoordSystem_Coordinate_System_1",
"geometryName": "ModelLoadEvent_Force-_Moment_1",
"load": {
".index": 0,
"z": "35598"
},
"pointOfApplication": {
".index": 1,
"x": "-0.0740283",
"y": "-0.0128969",
"z": "0.071124"
Configuration
configuration.symmetry.x configuration.symmetry.y configuration.symmetry.z | x-axis as symmetry plane (Y-Z-Plane). y-axis as symmetry plane (X-Z-Plane). z-axis as symmetry plane (X-Y-Plane). |
configuration.symmetry.coordinateSystem | If the symmetry is to refer to a local coordinate system, the following command must also be entered (Coordinate_system_1 is the name of the local coordinate system and can vary). |
configuration.maxConcurrentGPUSolvers | Maximum number of GPUs used by the optimisation (support GPUs: Nvidia Quadro Graphics Cards supported by CUDA Driver) |
configuration.buildSpace | Geometry used for the intersection with the Design Space to receive the nominal geometry |
configuration.offsetSpace | Geometry used for the intersection with the Design Space to receive the print geometry |
configuration.unitSystem | Used unit system |
configuration.eigenThreads | Number of CPU threads that can be used to build the matrix. At least two cores should always remain free. We recommend using 2-6 threads. |
configuration.complexity | Defines how complex the design is getting. More information here. |
configuration.solver.<name>.strategy | InternalCPU: CPU based solver ExternLegacy: External (GPU) solver |
configuration.solver.<name>.host | IP of the external solver, localhost for the same workstation. IP for cloud, for what the matrix is built locally and sent to the calculation unit. Large amounts of data can be moved with a corresponding amount of time. |
configuration.solver.<name>.port | Port which is used to access the CudaSolver. This can be selected arbitrarily, according to the specified value when starting the solver. (The default port for the Cuda service is 42001) |
Example
"configuration": {
".index": 9,
"buildSpace": "DesignSpace_machiningCut",
"complexity": "14",
"eigenThreads": "4",
"offsetSpace": "DesignSpace_machiningOffset",
"remesher": {
".index": 1,
"designCandidateRemesher": {
".index": 0,
"enabled": "true"
},
"voxelIntersectionRemesher": {
".index": 1,
"enabled": "true"
}
},
"solver": {
".index": 0,
"solver1": {
".index": 0,
"host": "localhost",
"port": "42004",
"strategy": "ExternLegacy"
}
},
"unitSystem": "SI_K"
Coordinate System
coordinateSystem.<name>.alpha coordinateSystem.<name>.beta coordinateSystem.<name>.gamma | The coordinate system is located/orientated with coordinate values and Euler angles regarding the global coordinate system. |
coordinateSystem.<name>.origin.x coordinateSystem.<name>.origin.y coordinateSystem.<name>.origin.z | The coordinate system has a point of origin. |
coordinateSystem.<name>.base | Each coordinate system is given a unique name Coordinate_System_1 |
Example
"coordinateSystem": {
".index": 6,
"CoordSystem_CSYS.0": {
".index": 0,
"alpha": "0",
"beta": "0",
"gamma": "0",
"origin": {
".index": 0,
"x": "0",
"y": "0",
"z": "0"
Design
design.<name>.geometryName | Definition of the Design Space. |
design.<name>.materialName | Definition of material for the Design Space. |
Example
"design": {
".index": 3,
"DesignSpace_machiningCut": {
".index": 0,
"geometryName": "DesignSpace_machiningCut",
"materialName": "TiAl6V4"
Engine Version
"engine_version": "2021.2",
Event
event.<name>.eventName | Specified name of the event. |
event.<name>.safetyFactor | Event specific Safety Factor |
Example
"event": {
".index": 8,
"Event_1": {
".index": 0,
"condition": {
".index": 0,
"ModelConstraintEvent_Constraint_1": {
".index": 1
},
"ModelLoadEvent_Force_-_Moment_1_Force": {
".index": 0
}
},
"safetyFactor": "2"
Failure Criterion
Von Mises
failureCriterion.<name>.failureCriterion | Specified name of the Failure Criterion. |
failureCriterion.<name>.tensileStrength | Tensile Strength of the material |
Example von Mises
"failureCriterion": {
".index": 1,
"Von_Mises": {
".index": 0,
"failureCriterion": "VonMises",
"tensileStrength": "6e+08"
Tsai Hill Failure Criterion
failureCriterion.<name>.failureCriterion | Specified name of the Failure Criterion. |
failureCriterion.<name>.x_t | Axial Tensile Strength |
failureCriterion.<name>.y_t | Transversal Tensile Strength |
failureCriterion.<name>.x_c | Axial Compression Strength (3D Orthotropic Material) |
failureCriterion.<name>.y_c | Transversal Compression Strength (3D Orthotropic Material) |
failureCriterion.<name>.s | Shear Strength |
Example Tsai Hill
Tsai Wu Failure Criterion
failureCriterion.<name>.failureCriterion | Specified name of the Failure Criterion. |
failureCriterion.<name>.x_t | Tensile Strength x |
failureCriterion.<name>.y_t | Tensile Strength y |
failureCriterion.<name>.z_t | Tensile Strength z (3D Orthotropic Material) |
failureCriterion.<name>.x_c | Compression Strength x |
failureCriterion.<name>.y_c | Compression Strength y |
failureCriterion.<name>.z_c | Compression Strength z (3D Orthotropic Material) |
failureCriterion.<name>.s_xy | Shear Strength in XY |
failureCriterion.<name>.s_yz | Shear Strength in YZ (3D Orthotropic Material) |
failureCriterion.<name>.s_zx | Shear Strength in ZX (3D Orthotropic Material) |
Example Tsai Wu
Geometry
In the Geometry section, all geometries and their paths are defined. For each geometry used in the optimisation an STL-file needs to be available in the optimisation folder.
geometry.<name>.isOpenSurface geometry.<name>.useSurfaceOnly geometry.<name>.useSurfaceCentroid | Indicates that the geometry is a surface and not a volume. |
geometry.<name>.path | Path to the geometry file |
Example
"geometry": {
".index": 2,
"DesignSpace_machiningCut": {
".index": 0,
"path": "DesignSpace_machiningCut.stl"
Machining Allowance
The Machining Allowances section collects all information regarding the Machining Allowances and the Design Space including the Machining Allowances to guarantee a correct intersection.
machiningOffset.<name>.geometryName | Specified name of the Machining Allowance reference geometry. |
machiningOffset.<name>.offset | Defines the thickness of the Machining Allowance in the chosen unit. |
Example
"machiningOffset": {
".index": 5,
"machOffset_MachiningAllowance_Machining_Allowance_1": {
".index": 0,
"geometryName": "MachiningAllowance_Machining_Allowance_1",
"offset": "0.001"
In the Geometry section, all geometries and their paths are defined. For each geometry used in the optimisation an STL-file needs to be saved in the optimisation folder.
Material
material.<name>.failureCriterionName | Name of the Failure Criterion |
material.<name>.density | Material density |
material.<name>.coordinateSystem | Coordinate system related to the material |
Isotropic Material
material.<name>.elementMode | Specified material name |
material.<name>.young | Young’s modulus |
material.<name>.poisson | Poisson ratio |
Example Isotropic Material
"material": {
".index": 0,
"TiAl6V4": {
".index": 0,
"density": "4481.87",
"elementMode": "Isotropic",
"failureCriterionName": "Von_Mises",
"material": "",
"poisson": "0.26",
"young": "1.15617e+11"
3D Transversely Isotropic Material
material.<name>.elementMode | Specified material name |
material.<name>.exx material.<name>.eyy | Axial Young’s Modulus x Transversal Young’s modulus yz |
material.<name>.gxy | Shear modulus of parallel planes. |
material.<name>.vxy material.<name>.vyz | Axial Poisson ratio Transversal Poisson ratio |
Example 3D Transversely Isotropic Material
"material": {
".index": 0,
"TiAl6V4": {
".index": 0,
"density": "4481.87",
"elementMode": "Isotropic",
"failureCriterionName": "Von_Mises",
"material": "",
"poisson": "0.26",
"young": "1.15617e+11"
3D Orthotropic Material
material.<name>.elementMode | Specified material name |
material.<name>.exx material.<name>.eyy material.<name>.ezz | Young’s modulus x Young’s modulus y Young’s modulus z |
material.<name>.gxy material.<name>.gxz material.<name>.gyz | Shear modulus of xy plane Shear modulus of xz plane Shear modulus of yz plane |
material.<name>.vxy material.<name>.vyx material.<name>.vxz material.<name>.vzx material.<name>.vyz material.<name>.vzy | xy component of Poisson ratio tensor yx component of Poisson ratio tensor xz component of Poisson ratio tensor zx component of Poisson ratio tensor yz component of Poisson ratio tensor zy component of Poisson ratio tensor |
Example 3D Orthotropic Material
"material": {
".index": 0,
"TiAl6V4": {
".index": 0,
"density": "4481.87",
"elementMode": "Isotropic",
"failureCriterionName": "Von_Mises",
"material": "",
"poisson": "0.26",
"young": "1.15617e+11"
Non-Design Spaces
nonDesign.<name>.geometryName | Specified geometry name |
nonDesign.<name>.preserveGeometry | The volume cannot be removed during the optimisation and will keep a connection to the rest of the design. |
nonDesign.<name>.retainedVolume | A Retained Volumes specifies an area of the optimisation model which is included in the analysis but not in the design. |
Example
"nonDesign": {
".index": 4,
"MachiningAllowance_Machining_Allowance_1": {
".index": 11,
"geometryName": "MachiningAllowance_Machining_Allowance_1"
Schedule
Example
"schedule": {
".index": 10,
"prefabricated": {
".index": 0,
"shapeQuality": "balanced",
"strutDensity": "medium"
Advanced User Settings
Have a look here for more information and commands that can be used.
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