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K2Engineering
ADDON. Version 1.0.0. Released on 2019-04-27. Provides 36 components. Created by Cecilie Brandt. Features 0 video tutorials.
This plugin contains a set of customised Kangaroo2 grasshopper components with the scope of calibrating a number of goals with regard to structural properties. This is particularly useful for the analysis of form-active structures (including cablenets and gridshells) that are typically characterised by their large deformations when subjected to external loads. The underlying position-based dynamics implemented in the Kangaroo2 solver inherently deals with this non-linear behaviour. This means that both form-finding and analysis can be performed within the Grasshopper environment using K2 and K2Engineering.
3 Results
| Bar Output (BarOutput) Extract the output of the Bar goal | |
| Beam Output (BeamOutput) Extract the output of the Beam goal | |
| Buckling Analysis (Buckling) Calculate the buckling load factor from a nonlinear load-displacement analysis | |
| Displacements (Displ) Calculate the nodal displacements | |
| Load Output (LoadOutput) Extract the output of the Load goal | |
| Pressure Output (PressureOutput) Extract the output of the pressure goal | |
| Rod Output (RodOutput) Extract the output of the Rod goal | |
| Shear Calculate the shear values per line segment as the difference in moments at the endpoints [kN] | |
| Support6DOFOutput Extract the output of the 6 DOF Support goal | |
| Support Output (SupportOutput) Extract the output of the Support goal |
2 Load
| Bar Length (BLength) Calculate the length of bars coming into a node | |
| Bar Selfweight (BSelfweight) Calculate the selfweight of bar elements | |
| Load A K2 nodal load goal | |
| Mesh Selfweight (MSelfweight) Calculate the selfweight of a mesh | |
| Mesh Snow Load (MSnow) Calculate the snow load on a mesh | |
| Mesh Vertex Area (MVArea) Calculate the voronoi area associated with each vertex of a mesh | |
| Mesh Wind Load (MWind) Calculate wind load on a mesh | |
| Pressure A pressure load goal following the principle of the Ideal Gas Law and with forces perpendicular to the mesh faces |
4 Display
| Axial Visualisation (AxialDisplay) Visualise the axial forces with colour and line weight (blue=tension, green=neutral, red=compression) | |
| Bending Visualisation (BendingDisplay) Visualise the bending stress with colour (blue=low, green=medium, red=high) | |
| Bending Visualisation6DOF (BendingDisplay) Visualise the 6 DOF beam forces/moments | |
| Displacement Visualisation (DisplVis) Visualise the nodal displacements by colouring the connected bars | |
| Load Visualisation (LoadDisplay) Visualise the load on the deformed structure | |
| Shear Visualisation (ShearDisplay) Visualise the shear forces with colour (blue=low, green=medium, red=high) |
5 Utility
| Beam Orientation (BeamOrientation) Compute the start and end plane orientation of a beam element | |
| Circular CS (Circle) Calculate the cross section properties of a circular shape | |
| Materials (Mat) List of predefined material properties (use as guidance only) | |
| Pretension (PT) Calculate pretension distribution in a cablenet | |
| Rectangular CS (Rectangle) Calculate the cross section properties of a rectangular shape | |
| Transform Moment (TransformMoment) Transform a moment from one horizontal plane (XY) to another |
0 Elements
| Bar A goal that represents a bar element with axial stiffness only. It outputs the extended/shortened line geometry, the axial force and stress value (- compression, + tension) | |
| Beam A goal that represents a beam element with biaxial bending and torsion behaviour. WORK IN PROGRESS | |
| Cable A K2 cable element with pre-tension option | |
| Rod A goal that represents an elastic rod with bending stiffness only. It outputs the bending plane, bending moment [kNm] and the bending stress [MPa] |
1 Supports
| Support A support with output of reaction force in kN | |
| Support6DOF A 6 DOF support (global coordinate system) with output of reaction force in [kN] and reaction moment in [kNm] |
Site design © Robin Rodricks.
K2Engineering and associated data © 2024 Cecilie Brandt.
Rhinoceros and Grasshopper are registered trademarks of Robert McNeel & Associates.
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