Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- en:einleitung [2025/05/12 17:22] – angelegt deppe2
+++ en:einleitung [2026/01/28 14:55] (aktuell) – [Material Data] pka
@@ Zeile 1: / Zeile 1: @@
-====== Introduction ======
+====== General information and structure ======
+===== Overview  =====
+After starting SIGMA the application presents itself as shown on the left side in the figure. A frame, which has the same structure as the windows explorer is located on the left side of the start-up window and shows information about the current project. This area is titled Project data and it is shown in detail on the right hand side of the figure. In this frame the most important data of the calculation are clearly arranged.
+{{ :en:einleitung:en_sigma150_dlg_einleitung_uebersicht_und_struktur_von_sigma_001.png?nolink |}}
+===== Project Data =====
+A SIGMA **Project** (Chapter [[en:erste_schritte]]) is used to manage the different files which are created and needed by SIGMA. A project is a folder in the directory. Essentially it contains various processes.
+A SIGMA **Process** (Chapter [[en:erste_schritte:prozess_erstellen]]) is the basic unit to work and simulate with. It unites all required data. The most important components are:
+  * **Machine configuration** (Chapter [[en:eingabe_der_maschinenparameter_und_konfiguration]]): The machine configuration manages the characteristic properties of a concrete machine and all its elements.
+  * **Barrel configuration** (Chapter [[en:eingabe_der_maschinenparameter_und_konfiguration:eingabe_der_zylinderelemente]]): The barrel configuration defines a concrete configuration for a barrel consisting of the defined barrel elements for this process.
+  * **Screw configuration** (Chapter [[en:eingabe_der_maschinenparameter_und_konfiguration:schneckenelemente]]): The screw configuration defines a concrete configuration for a screw consisting of the defined screw elements for this process.
+  * **Process parameters** (Chapter [[en:simulation]]) and **Material data** (Chapter [[en:materialdaten]]): The process parameters define the barrel temperatures and the material stages. But the concrete material data are saved in separate files so they are not integrated part of the process parameters.
+  * **Die configuration** (Chapter [[en:eingabe_der_maschinenparameter_und_konfiguration:werkzeug]]): If a die is assigned to the process, SIGMA can calculate the pressure at the screw tip.
+These items listed above are not integrated parts of a process but they are saved in separate files which are independent of each other. In this way it is possible to use the same machine configuration in different processes. All example processes use the machine //example.mas// for instance.
+This structure can be found in the project explorer, see figure. Additionally, there are listed the items //Calculation settings// (Chapter [[en:simulation:berechnung]]), //Results// (Chapter [[en:grafische_darstellung]]), and //Experimental data// (Chapter [[en:versuchsdatenverwaltung]]). The items machine configuration, barrel configuration and screw configuration are grouped into the item machine.
+{{ :en:einleitung:en_sigma150_dlg_einleitung_uebersicht_und_struktur_von_sigma_002.png?nolink |}}
+When double clicking on an item in the project explorer, a corresponding window opens up, which shows the characteristic data and allows modifying them. The machine, barrel and screw configuration can either be edited directly by clicking on the respective name or icon in the project explorer or in the dialog **Visual machine configuration** (Chapter [[en:eingabe_der_maschinenparameter_und_konfiguration]]). This gives an overview of screw, barrel and machine and opens up when clicking on Machine or choosing **Configuration, Configuration editor** within the main menu. This way of changing data which are relevant to the calculation leads to a loss of the current results and the modified settings are available for a new calculation. If data are changed this way and therefore no longer correspond to the original data in the saved files, the unsaved items are marked with an asterisk (*). An exclamation mark marks faulty data. The corresponding data should be checked before the next calculation.
+===== Process Window =====
+By activating a process, a window that contains all information about the results of this process opens up within the empty space. The  figure shows two of such **Process windows**. The process window is divided into two parts. A diagram with the current calculation results (Chapter [[en:grafische_darstellung]]) which depends on the selection made is placed above the second part a picture of the screw and the barrel configuration. Additionally process parameters (barrel temperatures and material stages) are given in textual form. So far as they are available also the experimental data (Chapter [[en:versuchsdatenverwaltung]]) are shown.
+SIGMA also allows to define so-called **Batch processes** (Chapter Create a Batch Process), which are like normal processes but they use one machine configuration with several varying process parameters. In case of a batch process the process window shows the process parameters of the base process and a graph for each variation in the diagram.
+If the cursor points at the values for the barrel temperatures or material stages placed in the picture of the machine configuration in the lower part of the window they change into hyperlinks. By clicking on them a window opens up where it is possible to change the barrel temperatures or material stages.
+If the cursor points at the graphs in the diagram the calculation results and experimental data at the cursor position are shown in the properties frame, placed in the lower left below the project data.
+===== Material Data =====
+The upper left frame contains besides the project data tab a tab called **Material**. The material data are fundamental for each calculation and therefore they should be measured and inserted very carefully. SIGMA offers the direct access to the relational database of PAM. PAM is a part of the SIGMA distribution and assists polymer engineers in administrating material data of polymers and in evaluating material parameters of series of measurements.
+The material tab itself is divided into two frames (see figure right) which show the materials (Chapter [[en:materialdaten]]) contained in the connected database (above) and in the current project folder (below). The default database can be changed under **Options** (Chapter [[en:optionen]]).
+{{ :en:einleitung:en_sigma150_dlg_einleitung_uebersicht_und_struktur_von_sigma_003.png?nolink |}}
+If no database is specified, the list of materials from the database is not displayed. Instead, a corresponding message and a button for connecting to a database are shown. By pressing this button, you can connect to any database.
+When a material is activated from one of the lists in the Material Explorer, the corresponding dialog opens and the material can be edited. Please note that the material dialogs that open do not contain an OK button, since they are loaded directly from a file or a database. However, you always have the option to save the changes you have made.
+If, on the other hand, you open a material from the Project Explorer, the changes made are applied to the process by pressing OK, without saving the material.
+In addition, each of the two material lists has a context menu (right mouse button), which allows materials to be easily created, edited, and deleted. The context menus of both lists also include an option to reload the lists in case they have been modified externally, as well as an option to export materials to another storage location.
+===== Machine Data =====
+The third tab displays the machine data (see figure). This tab is also divided into two sections and is structured analogously to the Material Explorer. The lower section contains the machine, screw, and barrel configurations of the project directory, while the upper section contains the corresponding configurations from the connected database. If no database is connected, a Connect button is displayed, which allows a database to be selected and connected.
+Another way to select the databases for materials and machines is provided via the menu Options → Database. There, databases can also be defined that are automatically connected when the program starts.
+Unlike the material data, a database must first be created for the machine data. No database is predefined. The database can be created via the main menu under Configuration → Create Database. From there, an existing database can also be connected or disconnected.
+When Create Database is selected, the window Create Machine Database opens (see figure below). First, the database must be named. This is done by clicking the button with “…” to the right of the empty field next to Database:. Select the path where the database is to be stored and then enter the database name as the file name. At the time of creation, this name must not already exist in the selected directory. After confirming with OK, the Create Machine Database window appears again, and the fields Connect as: and Password: must now be filled in.
+ {{ :en:einleitung:en_sigma150_dlg_einleitung_uebersicht_und_struktur_von_sigma_004.png?nolink |}}
+{{ :en:einleitung:en_sigma150_dlg_einleitung_uebersicht_und_struktur_von_sigma_005.png?nolink |}}
+Unless configured otherwise, “sysdba” must always be entered in the Connect as: field and “masterkey” as the password. After confirming with OK, the database is created.
+The Connect Machine Database window looks exactly the same as the Create Machine Database window. In this case, an existing database must be selected and no new name is specified. The fields Connect as: and Password: must again be filled in with “sysdba” and “masterkey”, respectively.
+===== Properties =====
+The **Properties** frame is located below the project and material tabs. According to the current selection in the project explorer or the material lists the frame shows the characteristics of this item. In case of a process the characteristics are the files the process is based on. In case of machine elements or materials all input data are shown up.
+Besides this static data the properties frame displays the calculated results for the cursor position on a diagram in the process window.
-  *[[en:Einleitung:Vorwort]]
-  *[[en:Einleitung:Übersicht und Struktur von SIGMA