WindLab Tutorial GeorgeDeodatis 1996 Example SimulationPoints: Difference between revisions

Latest revision as of 18:47, 14 November 2024

Topic
Tutorial
Wind Simulation Points (George Deodatis, 1996)
Level
Beginner
Time to complete
10 minutes
Authors
Koffi Daniel
LabRPS version
0.1.0 or above
Example files
None
See also
None
Contents 1 Introduction 2 Requirements 3 Plugin Installation 4 Create New Feature 5 Input Points Coordinates 6 Showing Results 7 What next?

Introduction

Deodatis (1996) provides a comprehensive method for simulating ergodic wind velocity time histories by modeling the wind as a stationary random process with well-defined statistical properties. His approach is particularly focused on multivariate wind simulations (i.e., for multiple correlated wind components at different locations in space. These locations where the wind velocity components are considered in space are called Simulation Point in WindLab. This example is meant to show how a wind simulation points in LabRPS's WindLab Workbench looks like in the LabRPS interface and how their coordinates can be visualized. Every computation in LabRPS needs a RPS Feature. Here we rather need a WindLab Feature (RPS Feature) which is should be provided by a plugin.

Requirements

A compatible version of LabRPS designated in the tutorial overview.
Use the Help → About LabRPS to see the version of LabRPS installed.
No external software is needed for the computation of the locations coordinates as well as for visualizing the results.
Install the plugin that will provide the feature for the computation of the locations coordinates.

Plugin Installation

The first step is to start LabRPS by double-cliking its icon. Then active the WindLab workbench as shown in the following picture. Note that plugins are loaded according to the active workbench. If you do not activate the WindLab workbench, no wind velocity related plugin will be loaded.

According to Deodatis (1996), the simulation points are three in total and their distribution in space does not follow any particular distribution in space. To compute such simulation distribution, the feature General Distribution from the WindLab Plugin. Let's install the feature first. Go to Tools → Feature Manager..., select the WindLabPlugin in the list and click Install as shown in the following picture.

The Feature installation wizard will be launched. Please install the feautre by following the steps as shown in the following pictures:

Create New Feature

Please follow the following steps to create new WindLab simulation and add new Location distribution feature to it.

Press the New button to create new document or
- Select the File → New option from the menu or
- Use the keyboard shortcut: Ctrl+N.
Press the New Simulation button to create new WindLab simulation or
- Select the WindLab → New Simulation option from the menu.
- This will display the WindLab simulation creation task dialog as follows:

Press the Create Feature button to create new Location Distribution feature or
- Select the WindLab → Create Feature option from the menu.

Input Points Coordinates

Showing Results

What next?

We are now finished with the basic workflow for the WindLab Workbench feature creation.
You are now prepared to do the second WWindLab tutorial.
We will create meand wind profile that will use the simulation points coordinates created in this tutorial.

WindLab

WindLab: New Simulation, WindLab Features

User documentation

Getting started
Installation: Download, Windows, Linux, Mac, Additional components, AppImage
Basics: About LabRPS, Interface, RPS Objects, Object name, Preferences, Workbenches, Document structure, Properties, Help LabRPS, Donate

Help: Tutorials, Video tutorials
Workbenches: Std Base, WindLab, SeismicLab, SeaLab, UserLab, Spreadsheet, Plot, Web

Addons: Addon Manager, Plugins, Scripting and macros

Hubs: User hub, Power users hub, Developer hub

@@ Line 35: / Line 35: @@
 [[Image:WindLab_Tutorial001_Pic003_WindLab_Wizard_3.png|600px]] [[Image:WindLab_Tutorial001_Pic003_WindLab_Wizard_4.png|600px]]
-=== Load the example file ===
+== Create New Feature ==
-* Start LabRPS.
+Please follow the following steps to create new WindLab simulation and add new Location distribution feature to it.
-* If the Start Workbench is not activated, load it and open the start page.
-* Open the example "FemCalculixCantilever3D.FcStd".
-[[Image:WindLab_example01_pic11.png|700px]]
+# Press the {{Button|[[Image:Std_New.svg|16px]] [[Std_New|New]]}} button to create new document or
+#* Select the {{MenuCommand|File → [[Image:Std_New.svg|16px]] New}} option from the menu or
+#* Use the keyboard shortcut: {{KEY|Ctrl}}+{{KEY|N}}.
+# Press the {{Button|[[Image:WindLab_CreateSimulation.svg|16px]] [[WindLab_CreateSimulation|New Simulation]]}} button to create new WindLab simulation or
+#* Select the {{MenuCommand|WindLab → [[Image:WindLab_CreateSimulation.svg|16px]] New Simulation}} option from the menu.
+#* This will display the WindLab simulation creation task dialog as follows:
-=== Activate the analysis container ===
+[[Image:WindLab_Tutorial001_Pic004_WindLab_Sim_Creation_1.png|400px]] [[Image:WindLab_Tutorial001_Pic004_WindLab_Sim_Creation_2.png|400px]] [[Image:WindLab_Tutorial001_Pic004_WindLab_Sim_Creation_3.png|400px]]
-* To work with an analysis the analysis has to be activated.
+# Press the {{Button|[[Image:WindLab_CreateFeature.svg|16px]] [[WindLab_CreateFeature|Create Feature]]}} button to create new Location Distribution feature or
-* In the [[Tree_view|tree view]], double click on the [[Image:WindLab_Analysis.svg|24px]] {{Button|Analysis}},
+#* Select the {{MenuCommand|WindLab → [[Image:WindLab_CreateFeature.svg|16px]] Create Feature}} option from the menu.
-* or right click on the [[Image:WindLab_Analysis.svg|24px]] {{Button|Analysis}} and choose {{Button|Activate analysis}}.
-[[Image:WindLab_example01_pic12.png|700px]]
+[[Image:WindLab_Tutorial001_Pic004_WindLab_Sim_Creation_3.png|400px]] [[Image:WindLab_Tutorial001_Pic004_WindLab_Feat_Creation_1.png|400px]] [[Image:WindLab_Tutorial001_Pic004_WindLab_Feat_Creation_2.png|400px]]
-=== Analysis container and its objects ===
+==  Input Points Coordinates ==
-* If the analysis is activated, LabRPS itself will change the current workbench to WindLab.
+==  Showing Results ==
-* There are at least 5 objects needed to make a static mechanical analysis.
-* [[Image:WindLab_Analysis.svg|24px]] analysis container
-# [[Image:WindLab_SolverCalculixCxxtools.svg|24px]] a solver
-# [[Image:WindLab_MaterialSolid.svg|24px]] a material
-# [[Image:WindLab_ConstraintFixed.svg|24px]] a fixed boundary condition
-# [[Image:WindLab_ConstraintForce.svg|24px]] a force load
-# [[Image:WindLab_WindLabMesh.svg|24px]] a WindLab mesh
-* In this example, results [[Image:WindLab_ResultShow.svg|24px|link=WindLab_ResultShow]] are already included as well.
-=== Visualizing Results ===
-# Be sure the analysis is activated.
-# Be sure the analysis still contains the result object, if not just reload the example file.
-# Double click the result object [[Image:WindLab_ResultShow.svg|24px]], or select it and click the [[Image:WindLab_ResultShow.svg|24px]] [[WindLab_ResultShow|Show result]] button in the WindLab toolbar.
-# In the task window, choose {{incode|z-Displacement}}. It shows {{incode|-86.93 mm}} in negative z-direction. This makes sense since the force is in negative z-direction as well.
-# Activate the check box besides the bottom slider of displacement show.
-# The slider can be used to alter the mesh to view the deformation in a simplified manner.
-# Choose among the different Result types to view all in the GUI available result types.
-[[Image:WindLab_example01_pic13.png|400px]]
-=== Purging Results ===
-# Be sure the analysis is activated.
-# To remove the results: select in the icon toolbar the [[Image:WindLab_ResultsPurge.svg|24px]] [[WindLab_ResultsPurge|Purge results]] button.
-===  Running the FEA ===
-* In the [[Tree_view|tree view]] double click on the solver object [[Image:WindLab_SolverCalculixCxxtools.svg|24px]].
-* In the [[Task_panel|task panel]] of the solver object make sure static analysis is selected.
-* Click on {{Button|Write .inp file}} in the same task window. Watch the log window until it prints "write completed."
-* Click on {{Button|Run CalculiX}}. Since this is a very small analysis it should take less than a second to run.
-* In the text window it should print in green letters "CalculiX done without error!" and in the next line "loading result sets ..."
-* You just have finished your first FEA in LabRPS if there has not been any error message.
-* Click on {{Button|Close}} in the task window.
-* A new result object should be created. You know how to visualize the results already.
-* If you get an error message no solver binary or similar when triggering the analysis check [[WindLab_Install|WindLab Install]].
-[[Image:WindLab_example01_pic14.png|400px]]
-===  Running the FEA the fast Way ===
-* In tree view select the solver object [[Image:WindLab_SolverCalculixCxxtools.svg|24px]] of the analysis [[Image:WindLab_Analysis.svg|24px]].
-* In the icon toolbar click on [[Image:WindLab_SolverRun.svg|24px]] [[WindLab_SolverRun|Run solver calculations]].
-* The Calculix input file will be written, CalculiX will be triggered and the result object should be created.
-===  Changing Load Direction and Load Value ===
-* In the [[Tree_view|tree view]] expand [[Image:WindLab_ResultShow.svg|24px]] CCX_Results and select the [[Image:WindLab_MeshResult.svg|24px]] ResultMesh object and press the {{KEY|Space}} key.
-** '''Result:''' The visibility of the WindLab mesh will be turned off. The geometrical model is still visible.
-* In the [[Tree_view|tree view]] double click on the [[Image:WindLab_ConstraintForce.svg|24px]] WindLabConstraintForce object to open its [[Task_panel|task panel]]
-* In the task window change the load value to '''500000000 N = 500 MN''' ('''Note:''' force unit in task window has to be in N)
-* On the geometrical model click on one of the long edges in x-direction.
-* Click on the {{Button|Direction}} button.
-** '''Result:''' The red arrows that illustrate force will change their direction in x-direction. They indicate the force direction.
-* Since tension should be applied to the box the Reverse Direction needs to be triggered by clicking on it.
-* The red arrows of the force will change their direction.
-* Click on {{Button|OK}} in task window.
-[[Image:WindLab_example01_pic15.png|700px]]
-* You know how to trigger an analysis and how to visualize results already.
-* The deformation in x-direction should be 18.95 mm.
-[[Image:WindLab_example01_pic16.png|400px]]
 ==  What next? ==
-* We are now finished with the basic workflow for the [[WindLab_Workbench|WindLab Workbench]].
+* We are now finished with the basic workflow for the [[WindLab_Workbench|WindLab Workbench]] feature creation.
-* You are now prepared to do the second [[WindLab_tutorial|WindLab tutorial]].
+* You are now prepared to do the second [[WindLab_Tutorial_GeorgeDeodatis_1996_Example_MeanWindProfile|WWindLab tutorial]].
-* We will create the CalculiX cantilever by ourselves and compare the results with the beam theory.
+* We will create meand wind profile that will use the simulation points coordinates created in this tutorial.
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