Shipconstructor download free.How to download object enablers for AutoCAD | AutoCAD | Autodesk Knowledge Network

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Moreover, mesh generation parameters may also, on occasion, hamper the generation of a congruent mesh. The model must be corrected using AutoCAD tools. Normally, the system offers too large size of the finite element of mesh.❿
 
 

Shipconstructor download free

 
This essential way of thinking behind the innovation permits clients to legitimately associate with the 3D item model of a transport or seaward undertaking in a way that is normal for their business. This may result in mesh generation or calculation errors. Once the other mesh parameters are selected, the mesh’s quality can be evaluated and the creation process completed: The tetrahedral grid model of a ShipConstructor model Assigning materials The AutoFEM Analysis materials library includes the materials most commonly used in various industries. Helpful tips and advice Creating materials in the AutoFEM Analysis material library Steps to create a new material: Validating of the model and fixing intersections 3Dmodel diagnostics study Multiple-volume bodies Non-contacting groups of bodies Intersecting bodies Contact between bodies Checking the PLC representation Creating finite-element meshes Decreasing the finite element size Increasing the curvature for cylindrical 3D models Flag Thin-walled structure Mesh generation errors Node tolerance for 3D surface models Use of the option “Stabilize the unfixed model” Which is the better equation solving method? Applying loads to a structural model. When required, user coordinate systems are provided to specify the orientation of the degrees of freedom. The techniques of finite element analysis FEM has become the principal tool of modern engineers who use computer-aided design CAD. The direct method is based on the Gauss method and its evolutions, and carries out a full-matrix inversion requiring large amounts of RAM.

❿

 

Shipconstructor download free.Releases, Updates, & Downloads

 

Creating a new material. Then, enter the name of the material, and click OK. After OK is pressed, the new material will appear in the current group of materials.

Typing the name of the material. Select the newly-created material from the list of materials and fill in its parameters, choosing them from the available selection list. The model’s geometry must be checked to make sure it is useable in an FEA exercise. Some of the common problems to look for in AutoCAD models include:. Automatic detection and resolving of intersections. Intersections are resolved using AutoCAD commands, a process which may require considerable time for very large ShipConstructor models.

In extreme cases, AutoCAD may actually crash. The Study Diagnostics command is designed to help the user find spurious or FEA-unfit objects in a study object group. The command runs automatically, but it is also available in the Study Tree contextual menu. In all cases, the diagnostics command identifies the spurious objects, which become available in the drop-down “Group of the bodies” list, and whose names are available in the Geometry list. A Multiple-volume object is one made of two or more solids which do not touch.

Example of a multiple-volume body. The AutoCAD command Explode generally suffices to separate the multiple volumes into discreet objects. In some cases, multiple-volume objects may be created during the resolution of intersections by AutoFEM itself. Multiple-volume objects must be resolved into single-volume, discreet object using AutoCAD tools.

Example of a multiple-volume object engendered by the resolution of an intersection, a condition which must be remedied. The “out-of-contact bodies” mode addresses objects which are separate from the model. Therefore, in general, such objects should not be included in the Study group of objects in static and buckling analysis, though they are admissible in thermal and frequency analysis studies.

Non contacting parts in the Preprocessor window. The model must be corrected using AutoCAD tools. Identifying and documenting pairs of intersecting objects in the diagnostics window. This mode allows the user to check model connections. Sometimes, when modelling in AutoCAD, invisible gaps may occur between objects. These gaps will be treated by AutoFEM as a separation, which will lead to unreliable calculation results. Gaps may also be engendered by the resolving of intersections; making this tool that much more useful and necessary.

The common faces of contacting parts are shown in green. There are no visible contact faces, the modelrequires checking. Inaccuracies are shown in the Pre-processor window; while the “Geometry” window indicates the number of suspicious objects found. These errors are generally remedied by adjusting the mesh construction parameters, otherwise the inaccuracies documented by AutoFEM must be remedied at the model level, in AutoCAD.

Possible problem areas are highlighted on the model. It is crucial that the FEA mesh approximates model geometry of the structure very accurately. Sometimes, model modifications are required to achieve a mesh appropriate for structural FEA, in which case the model must be adapted to the purpose. Moreover, mesh generation parameters may also, on occasion, hamper the generation of a congruent mesh.

AutoFEM offer various tools, such as its diagnostics tools, for model reviews and problem area identification. Normally, the system offers too large size of the finite element of mesh. User should define acceptable size of the finite element using a special slider Edge length or typing the value in the text box. For 3D models, which have in their composition round or cylindrical geometrical elements, often is useful to increase the accuracy of curve elements representation.

Flag “Thin-walled structure regular ” enables a meshing procedure that uses simplified quality control of mesh elements. If the “Mesh quality” parameter is set to “Dis”, the mesh will be generated on the basis of the initial PLC model with minimal modifications usually it looks like a “regular” mesh with square cells.

Such meshes contain fewer elements and may be used to compute thin-walled structures, but also in cases where a reduced size mesh is desired. The user can then resolve the problem in the 3D model or exclude the “bad” object s from the finite-element study. Indicating the location of a problem point on the 3D model.

Nodal coupling tolerance is user controlled, very useful in the case of surface models built on wireframes, which generally exhibit small gaps between surface edges. A gap in the mesh model.

Removing the gaps by increasing the node coupling tolerance. When analysing large ShipConstructor models, it may be that model or element constraints prove inadequate and the model or an element become unbalanced.

AutoFEM will then stop calculations and open the following diagnostic message dialogs:. Diagnostic message of unbalanced system. The “Stabilize the unfixed model” tool and its option are found in the Study Properties dialog.

Often, the option “Stabilize the unfixed model” helps find inadequately constrained objects or successfully perform the calculation. The two main methods for the solution of systems of equations are direct and iterative.

AutoFEM Analysis will automatically attempt to select the most efficient method for the analysis at hand. If the number of equations exceeds the maximum set in the Processor settings default , , the iterative method is used for solving.

If smaller, the direct method is used. The user can control this choice by defining selection parameters, or by selecting the desired method just prior to launching the analysis. Selecting the system of equation solving method and number of equations threshold. The first criterion is the power of the computer system.

The iterative method requires less RAM than the direct method. The direct method is based on the Gauss method and its evolutions, and carries out a full-matrix inversion requiring large amounts of RAM. The iterative method’s main advantage over the iterative method is its low RAM requirement, which is comparable to the amount of RAM needed for the initial stiffness matrix location.

Therefore, even relatively weak computer system such as an office computer with Windows bit operational system and no more than 3GB RAM may solve systems of up to 1 million equations or so.

On the other hand, performance depends on certain properties of tetrahedral finite elements, such as aspect ratio. And, the more such elements there are, the more solution time will increase, too. Then, the iterative method usually works well and is preferred when one has:. A “thick” finite element model: there are several layers of the finite elements. The Iterative method works better than the direct method for medium and large models.

A “thin” finite element model. The mesh consists of one or two layers of finite elements. The direct method works better than the iterative method, especially if mesh quality is poor many high aspect ratio mesh elements.

Some ShipConstructor parts, such as pipes, do not have corresponding 3D solid geometry in their ShipConstructor drawing. All Rights Reserved.

Downloads Purchase Contact Community. Input data Preparation of the calculation model Settings of integration with ShipConstructor 1.

Direct reading of data from the ShipConstructor materials library 2. Helpful tips and advice Creating materials in the AutoFEM Analysis material library Steps to create a new material: Validating of the model and fixing intersections 3Dmodel diagnostics study Multiple-volume bodies Non-contacting groups of bodies Intersecting bodies Contact between bodies Checking the PLC representation Creating finite-element meshes Decreasing the finite element size Increasing the curvature for cylindrical 3D models Flag Thin-walled structure Mesh generation errors Node tolerance for 3D surface models Use of the option “Stabilize the unfixed model” Which is the better equation solving method?

Working with ShipConstructor Pipes Shipbuilding, engineering and calculations Shipbuilding relates to the field of industrial activity, in which, in addition to developing the project, taking into account all the details, design calculations for strength, stability, and dynamic effects plays an important role.

ShipConstructor SSI, Canada The ShipConstructor suite of products has been deliberately designed to match standard industry processes, terminology and concepts of modern shipbuilding. Input data The 3D ShipConstructor structure model and the corresponding meta-data properties and attributes, etc.

Preparation of the calculation model Generally, any ShipConstructor model drawing, i. Creating a study encompassing several Units “Exporting” the 3D model to “external” dwg files Finally, one can even export a ShipConstructor model to a generic dwg format, and run the FEA outside the ShipCostructor environment. Finite-element modelling of an “exported” ShipConstructor 3D model Thus, the ShipConstructor user can choose the most appropriate strategy for his FEA purposes from a variety of options.

Settings of integration with ShipConstructor AutoFEM Analysis is unique in its ability to integrate with the ShipConstructor environment and, most especially, project database. Let us now more closely consider the two integration alternatives.

Direct reading of data from the ShipConstructor materials library using the “take properties from SC base” mode. Creating a material whose name is the same in the AutoFEM and ShipConstructor material libraries Assigning material to a part in ShipConstructor This approach is convenient because it allows to use materials with complex properties e. Creating a set of objects for finite element study The first step involved the creation of the desired objects for finite element study, a set which may include all the model’s components, or only some of them.

Once intersections are fixed eliminated , the study creation process continues. Creating the desired study After the successful creation of a set of objects, the command dialog “Creating Study” appears automatically. Volumetric formulation: model geometry is approximated with tetrahedral finite elements. The Study creation dialog Generating the finite-element mesh Once the object group of a study is defined, the mesh creation dialog is automatically being available.

Once the other mesh parameters are selected, the mesh’s quality can be evaluated and the creation process completed: The tetrahedral grid model of a ShipConstructor model Assigning materials The AutoFEM Analysis materials library includes the materials most commonly used in various industries. The Restraint dialog Defining the restraints of a ShipConstructor model Applying loads Many different types of loads are available: force, pressure, acceleration, torque hydrostatic load, centrifugal force, and the additional mass.

Applying loads to a structural model The “AutoFEM Palette” lists the defined studies, and each study’s pertinent data, mesh characteristics, materials, boundary conditions and calculations results. Study Tree, showing the calculation runs Solving the study Once the finite element mesh has been created, the materials assigned, restraints and loads imposed, the calculations can be run.

Running calculations from the contextual menu left and from the AutoFEM Ribbon right Once the calculation starts, the Study Properties may request additional information specific to that run: Properties of a Static Analysis study Solving dialog, reporting on calculation status and progress Studying the results Once a run completes successfully, the list of results appears in the Study Tree and, from the contextual menu of a given result, the user opens the corresponding Postprocessor window.

Displaying the calculated deflections Safety factors expressed as equivalent stress Animation of the result on-screen Results can be animated on-screen, one purpose being to review changes due to loading changes. Tools for results animation on-screen Creating animation videos The user can create video of the result animations. Creating video of animated result Creating Reports The “Report” command creates an html document that includes with principal data pertaining to the study at hand.

The steps to ensure this are: Steps to create a new material: 1. Creating a new group of materials 3. Creating a new material 4. Typing the name of the material 5. Select the newly-created material from the list of materials and fill in its parameters, choosing them from the available selection list 6. Press OK to complete creation of the material and close the dialog. Validating of the model and fixing intersections The model’s geometry must be checked to make sure it is useable in an FEA exercise.

Intersecting elements do not model real-life from a FEA standpoint. Any point in a FEA model must belong to a single element or, in our case, physical ShipConstructor part. Sometimes, eliminating intersections may result small changes to the overall 3D geometry, differences which are generally small enough to be negligible. Therefore, the automatic remedying process offered by AutoFEM vastly outweighs the marginally more accurate but also potentially impossible manual correction approach.

Automatic detection and resolving of intersections Warning! These are objects disconnected from the model, which provoke errors in mechanical studies such as static strength and buckling analysis, but are admissible for frequency and thermal studies.

Multiple-volume bodies. In terms of FEA meshing, each structure object must subtend a single, closed volume. However, multiple-volume objects can be created in AutoCAD, for example executing a Boolean union on out-of-contact objects, or by creating a solid array, etc. ShipConstructor captures all data important to the 3D configuration , fabricating, support, fix and refit of complex marine activities within a Marine Information Model MIM.

At the core of the model is a solitary social database living on a Microsoft SQL Server that can be incorporated with related business procedures and applications. ShipConstructor is a suite of items focused on explicitly at the shipbuilding and seaward enterprises.

This essential way of thinking behind the innovation permits clients to legitimately associate with the 3D item model of a transport or seaward undertaking in a way that is normal for their business. Clients with a strong establishment of AutoCAD aptitudes and a better than average comprehension of the business are equipped with the devices required to immediately get capable with the software.

Structure joins reason constructed shipbuilding explicit surfacing innovation and the effortlessness of working within AutoCAD.

❿
 
 

❿