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ROHR2 - How it works
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The graphical user interface ROHR2WIN is the pre- and postprocessor of ROHR2. All inputs can be made using ROHR2WIN.
A wide range of control functions enables the user to check the input data easily. All results can be displayed and checked, reports are generated.
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System and Load case input
ROHR2WIN creates input data for the calculation kernel.
- All data required for the analysis are put in by the user by mouse or dialog windows.
- ROHR2WIN offers the full interactive access to data via graphic.
- All inputs are shown graphically
- All control records, the line topology and superpositions of load cases are created automatically by the program
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Databases
The ROHR2 user is supported by extensive, integrated databases
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Documentation and Results
Analysis results are shown tabulated and graphically.
All result details are within easy reach by a mouse click.
Load case results
Graphical presentation of displacements and
detailed results at selected nodes.
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- Graphical representation of displacements, rotations, forces, moments and equivalent stresses for calculated load case and load cases created by superposition
- spatial presentation only for x, y or z direction
- zoom, pan and rotate-function available
- graphical representation of results is scalable
- detailed results for a selected node by mouse-click
- results in global or local coordinate system
- results can be printed out or saved in rtf- , html or txt format (e.g. MS Office)
- tabulated overviews can be modified by user using filter function
- sort results by a click on the table header
- Interaction between table and graphic, selected node in graphic is highlighted in table and vice versa
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Downloads
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ROHR2 Feature list
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ROHR2 Interfaces
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ROHR2ISO Features
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ROHR2FESU Features
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ROHR2STOSS Features
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ROHR2 Tutorial/Introduction
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ROHR2 Update Info
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Related product pages
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ROHR2 basics
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ROHR2 Interfaces
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ROHR2ISO
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ROHR2FESU
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ROHR2STOSS
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ROHR2 Demo Program
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ROHR2 Movie 
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ROHR2 Services
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Maintenance and User support
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Program Training
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ROHR2 FAQ
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ROHR2 Training examples
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Stress Analysis
Colored presentation of stress utilization and detailed results at selected nodes
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- graphical representation of stresses for the selected equation,
equations are defined automatically depending from the defined load cases
- stress analysis according to different specifications for parts of the calculation system
- stress analysis limited only to selected parts of a calculation system
- detailed results for a selected node by mouseclick
- results can be printed out or saved in rtf- , html or txt format (e.g. MS Office)
- tabulated overview can be modified by user using filter function
- sort results by click e. g. acc. to utilization or node number
- interaction between table and graphic, selected node in graphic is highlighted in table and vice versa
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Loads on Nozzles and Supports
Graphical presentation of loads on nozzles and / or supports
and detailed results at selected supports
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- Define allowable loads at nozzles
- Consider vessel spring in pipe stress calculation
- Nozzle with support conditions, spring rates, allowable loads and specific coordinate system
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- graphical representation of loads for the selected load case
- graphical presentation for all or for selected supports
- detailed results for a selected node by mouse-click
- documentation in global, local or user defined coordinate system
- results can be printed out or saved in rtf- or txt format (MS Office)
- tabulated overview can be modified by user using filter function
- sort results by click e. g. acc. to load in any direction or movement in any direction
- interaction between table and graphic, selected node in graphic is highlighted in table and vice versa
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Flange analysis acc. to EN 1591-1
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- Automatic analysis of all flanges in the system under consideration of all load cases. The number of load cases can be reduced by the user.
- Automatic generation of load case combinations required for the analyses.
- Simple pre-settings of the flange parameters by means of standard values for flanges, screws and gaskets.
- The flanges can be modified individually and in details
- Report of the calculation results in a list
- Automatic generation of a calculation report
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Additional Results
Besides the analysis of stresses and loads at support and connections, ROHR2 gives out, among others, the results of:
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Expansion Joints
- Database with lateral, angular and axial exp. joints
- data input by data base or user defined
- spring rates are calculated automatically using the manufacturers data
- forces due to internal pressure are considered automatically
- check of allowable movements for all load cases
- data sheet with detailed results for any exp. joint
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Internal pressure analysis (only for DIN/EN materials)
- Tees with or without reinforcing pad
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Spring design
Database with spring supports according to manufacturer’s data
- spring design, estimation
- check of allowable movements
- for load case superpositions
- data sheet with result overview for
- all spring and constant supports
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Databases
Databases with data e. g. of pipes, bends, flanges or expansion joints according to technical standards or according to manufacturer’s data. Databases are extendable by the user himself.
The delivery includes:
- Pipes:ANSI B36.10, EN 10220, DIN 2448, DIN 2458,
- Bends:EN 10253-2 , ANSI B16.9, DIN 2605 part 1, DIN 2605 part 2
- Flanges:EN 1092-1, ANSI B16.5, DIN 2627 - DIN 2638
- Reducers:EN 10253-2, DIN 2616 part 1, DIN 2616 part 2
- Tees:EN 10253-2, DIN 2615 part 1, DIN 2615 part 2
- Expansion joints: HYDRA (Witzenmann), BOA (IWK)
- HeadsEN 10253-2, DIN 28011, DIN 28013, DIN 2617
- Visco dampers:GERB series VES, RHY
- Spring hangers supports:HYDRA (Witzenmann), LISEGA, PSS (Grinnell),PipeSupportsGroup, HESTERBERG, SSG
Determination of loads:
- Wind according to DIN 1055 part 4, DIN 4133, EN1991, NV65, UBC, IS875 or by user defined wind pressure tables
- Snow and ice loads:DIN 1055
Stiffness of supports according to VDI 3842/2004
Databases for rigid supports, couplings (jacket pipes) and instruments can be created by the user himself.
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Learn more about
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ROHR2 Basics
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How ROHR2 is working
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Integration of ROHR2
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Program Version and
Scope of Delivery
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System and Load case Input
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ROHR2 integrated interfaces
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Program licensing and System requirements
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Documentation and Results
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Optional Interfaces
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ROHR2 introduction
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Stress Analysis
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Third Party Interface Products
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Isometric drawings in ROHR2
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Loads on nozzles and supports
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FE analysis in ROHR2
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Additional results
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Flange analysis
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ROHR2 Databases
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 "ROHR2 pipe stress analysis - Tabulated overview of displacements")
 "ROHR2 pipe stress analysis -")
 "ROHR2 pipe stress analysis - stressesList")
