AutoPIPE model files can be shared publicly on the forum, or privately with Bentley via the Secure Sharefile method. Please read more in the following article: Sharing AutoPipe Model Files on the AutoPIPE forum
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Forum Post: RE: How do I upload a document to the Bentley Communities AutoPIPE forum?
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Forum Post: RE: Autopipe support displacement
Hello Sandip, After my review it would appear that thermal expansion of the pipe against the anchors is pushing at the elbow causing the deformation. See image below, with no Support at elbow mid point. A03. Notice how A02 an A04 are pushing towards the elbow: See image below, forces exerted on anchors. due to thermal expansion: See image below, support is placed at elbow mid point. Note that the elbow mid point displacement has slid through the support and deformed to its current location. Would appear that the application is working correctly. Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Forum Post: RE: Terms related to user defined rotating equipment
Hello Vishal, Thank you for your question. I hope the following descriptions help you understand the functionality of these fields: 1) The reference point is the physical piping point through which the resolution point shall be defined. In other words, it is the origin through which the resolution point shall be defined in combination with the offsets. 2) Resolution point is the point with respect which all forces and moments of suction and discharge nozzles will be resolved for combined study. It is typically the flange face of largest compressor nozzle. 3) The resolution point offset is a coordinate offset of the reference point. This is used to determine the exact location where the resolution point should be, so the appropriate forces and moments can be reported. If the resolution point and reference point are at the same location, the offsets can be set to zero. 4) The pedestal axis corresponds to the local z-axis of the equipment coordinate system for horizontal pumps. For vertical pumps, the shaft axis corresponds to the local z-axis of the equipment coordinate system. Best
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Forum Post: RE: Autopipe nozzel
Hello SP12, In AutoPIPE Nozzle, pressure loads are handled with the following options: 1. Forces and Moments due to load case - Load tab. 2. Include Pressure Thrust in Gr, HY Case, option on Combinations dialog 3. Pressure Stress Conc - Factors tab 4. Pressure Intensification Method - Factors tab 5. Design Pressure - System tab, used in Internal pressure stresses calculations See AutoPIPE Nozzle help for details on these topics. Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Forum Post: RE: EN 13480 Allowable stress
Hello Pawel, Well done.. Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Forum Post: RE: ISOs Stress- line number text attribute
Hello Pawl, This is a good idea, and I would be happy to help answer your question. When an AutoPIPE model is exported to Stress Isometric, one can export the entire model or create a valid selection set. Either method could have 1 or 100's of segments / line numbers exported. How would Stress Iso title block handle this field? One suggestion would be to just concatenate unique line numbers into a single field. However, what happens when the field length is exceeded by the to many names? The title block is not dynamic at this time and thus cannot automatically expand to accommodate. Please provide a detailed description how you envision this feature to functioning with 1, 2, 10, or 100's of line numbers exported to a single stress iso? It is an easy enhancement for a single Line number, but not so easy when one needs to contend with 5 or more Line numbers. Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Forum Post: RE: Autopipe support displacement
Hello Mike, I rechecked. Its clear that the pipe is moving upward along with the support. If you check the pipe displacement and the support displacement its the same in the the vertical direction. This is true for any support having zero gap in the "UP" and finite gap in the "DOWN" direction. The pipe is not sliding through the support. The pipe is pushing the support upwards inspite of the support being modeled as a RIGID one and with no gap in the vertical UP direction. It appears there is some problem either in the application or in the model. Looking forward to hear back from you. Please refer to the figures below or the models I sent you. Regards, Sandip Dey
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Forum Post: RE: ISO-stress vertical guide gap/Local forces and displacement
Hello Pawel, Thank you for noting this issue. Please know that this has since been fixed in the new version of the program: Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Forum Post: RE: OPIM does not generate all piping components in the bill of materials.
Hello Robert, I have logged the following enhancements as you had suggested: TSG-E 687183 : StressISO: Add Reducer information in Component data section of isometric table TSG-E 687185 : StressISO: Add Bend information in Component data section of isometric table TSG-E 687186: StressISO: Add Nozzle information in Component data section of isometric table Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Forum Post: RE: Autopipe support displacement
Hello Sandip, If you be so kind as to NOT change node points and models under review. Answers and comments will based on same bend node, A03, from the model you had posted, 1762_DOWN_Archive.APC. I may have confused this issue with my previous reply and apologize about that. Let me try to make things clearer. From Analysis summary: For analsysis set #1: Load sequence = Gr > U1> T1> P1. Please see results grids for node point A03. Per your operating conditions, GU1T1P1 displacement is 0.00mm. Let us consider load sequence one step at a time. First Gravity, Gr, load case causes point A03m to moved down, -22.354mm (total displacement = - 22.354mm) because there is an infinite gap below on A03m V-Stop support. see image below for support details. At this point, the distributed load is applied over the entire segment A00 - A06 causing node point A03m to move up 1.006mm (total displacement = - 21.348mm). Next T1 load case is applied to segment A, this thermal expansion causes the node point to move up, +21.348mm (total displacement = 0.00mm) until it makes contacts with the support. Thus causing the load on the support in +ve Y-direction. Again, this is a simple case of load sequence where the user should be referring to the operating conditions (ex. GU1T1 or GrU1T1P1, etc..), for actual displacement of the model and then only considering the individual load cases (ex. T1) in trying to understand the operating condition values. Remeber for Linear analysis the rules are completely different (see AutoPIPE help for details). Regards, Mike Dattilio Bentley Product Advantage Group Analyst AutoPIPE Product Line Bentley Systems, Inc. ===================================================
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Wiki Page: Is a V-stop model as a Bi-directional the same as a V-stop model as a shoe in AutoPIPE?
Applies To Product(s): AutoPIPE Version(s): ALL; Environment: N/A Area: Modeling Original Author: Bentley Technical Support Group Date Logged & Current Version March. 2017 11.00.00.22 Problem: Will the results change if the support is modeled as a Bi-directional type V-stop or as a Shoe type V-Stop? Solution: Let us review the Help information on this subject by double clicking on any support to open the support dialog screen, and press the Help button in the lower right corner of the screen. On the help page see a grid of information about the different types of supports, look for the row on V-stops: Notice that the bearing direction for a V-stop support is Vertical only with support options for Gaps and Friction. Select the V-stop hyperlink at the beginning of the row. On the next screen read about the V-stop support and then select the hyperlink near the bottom labeled "Bi-Direction/Rod Hanger/Shoe". This will display a definition about each support type. Recommend to read each definition. In conclusion, it does not matter which support symbol is selected as the bearing direction will remain the same regardless. Only difference is some gap settings may be automatically set to 0.00 and grayed out. See Also V-stop - Support Type Bentley AutoPIPE
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Wiki Page: c. V-stop - Support Type in AutoPIPE - FAQ's
Comments, Questions, and Answers about AutoPIPE's Line Stop Support Type: Item #1: Questions about V-stop support dialog screen Is a V-stop model as a Bi-directional the same as a V-stop model as a shoe in AutoPIPE? Item #2: Do we have any control to adjust V-Stop support stiffness (or) always it takes (default) rigid value. Answer: No, an AutoPIPE V-stop has rigid stiffness setting. If you wish to consider a V-stop with support stiffness, select Support type = Incline. Item #3: Model Vertical Rod support in AutoPIPE See Also Different Types of Supports Bentley AutoPIPE
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Forum Post: RE: How to design an elliptical flange?
Unfortunately AutoPIPE Vessel does not offer the capability to design elliptical flange. You also cannot import drawing, but can only export.
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Forum Post: Not able to view result grid
Hello forum, After running analysis of piping, when we go to results >grids the result grid table is not appearing, Instead of the table small window of "Point Name (press F3 for results)" to view result. After pressing F3 it only display displacement and rotations. What is the problem and how to solve it?
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Forum Post: RE: Terms related to user defined rotating equipment
Thanks Joshua for your prompt reply. Now its clear for points 1 & 3 2) If its point of resolution of forces, it should have been at the interface of nozzle and equipment vessel connection or at the end of flange (where it connects to external piping). Since allowable forces on nozzles are specified at the end of nozzle(generally). So the resolution point should be different (multiple resolution points for each nozzle) for all the nozzle connections of rotating equipment. 4) But what is pedestral axis, is it related to base plate or mounting plate orientation of equipment? Meanwhile for user defined rotary equipment how to decide the pedestral axis.
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Forum Post: RE: Not able to view result grid
Sorry, found the result grid It was minimized at corner with few mm visible only.
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Forum Post: RE: Pressure for ASME NB-3655 Level C Cases
Hello James The coincident pressure should be associated with the relevant Level C load condition and should get applied automatically. Create all the loading cases that comprise the Level C loads and combine in the Stress Summary; depending on the reversing and non-reversing loads the approach will be different. If you continue to have problems, send a model via Service Request for us to review.
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Forum Post: RE: How to design an elliptical flange?
Thanks for the reply. I did it with Solidworks, no problem. cheers
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Wiki Page: 03c. Modeling Support and Beam Structures in AutoPIPE
Select Support from the Insert or Modify menu to display the Support dialog. A support may be added at any point in the piping (or framing) system, and more than one support is allowed at a point. Once the "Support Type" is specified, the dialog is updated to provide additional fields which are unique to the type of support requested. With an AutoPIPE model loaded, open a the support dialog screen and press the " Help " button. The table will provide detailed information about the 9 different support typs including bearing direction, and support options for each type of support. From the online help, only when the first support is entered into a model does the dialog have any default values. Each successive support inserted afterwards, the dialog recalls the previous settings. Item #1: Different Type of supports in AutoPIPE Item #2: Available AutoPIPE Help Example Methods for Modeling Supports with related FAQ's. Item #3: Beam Structure modeling in AutoPIPE Item #4: General FAQ's about Supports and Beams in AutoPIPE See Also Modeling Approaches Bentley AutoPIPE
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Wiki Page: 04. General FAQ's about Supports and Beams in AutoPIPE
Item #1: Support type that are not active for static seismic and dynamic load cases Item #2: Caesar guide support compared to AutoPIPE guide supports Answer: A guide support in AutoPIPE is different than Caesar's guide element - it's equal to Caesar's 2 supports (guide and Y stop). In AutoPIPE, a guide supports the pipe in the vertical and lateral directions but not axial. You can input gaps to remove vertical support or other directions if required. A guide support in AutoPIPE is always normal to the local pipe axis, so if the pipe is rotated the guide stays normal to the pipe which is very useful also when guides on skewed pipe. NOTE: Large gap will not display the support symbol in that direction for convenience. Item #3: Tips and Tricks when working on Combined Beam Structural & Piping models Item #4: Define a Displacement at a Support Item #5: Where should I use Flexible anchor / rigid anchor Item #6: How to model pendulum swing of a pipe on a rod support in AutoPIPE? Item #7: What typical gaps values should be used for guide supports in AutoPIPE? Item #8: For Guide, V-stop and Incline support types, when should Gaps setting = As-built or Weightless? See Also Modeling Support and Beam Structures Bentley AutoPIPE
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