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CAEPIPE-piping stress analysis     cheetah logo

To be released soon!

Why CAEPIPE 3D+?

It is common practice worldwide that piping layout designers route pipes in 3D Plant Design systems with consideration given mainly to space constraints, process and flow constraints (such as pressure drop) and other requirements arising from constructability, operability and reparability. Most often, while routing piping systems, pipe stress requirements are not sufficiently considered.

In order to meet pipe stress requirements, pipe stress engineers all along felt the following needs.

Need 1: Instead of creating pipe stress models by manually entering layout, pipe sizes and materials, supports, loads etc. in pipe stress software such as CAEPIPE, such stress models should be generated directly from 3D Plant Design systems. This would (a) save man-hours and (b) avoid errors in re-creating the stress models manually.

Need 2: The layouts of the stress models so generated from 3D Plant Design systems should have already gone through first-level stress compliance checks performed by 3D piping designers, so that the piping layouts received by pipe stress engineers are already flexible enough to absorb expansion/contraction of pipes due to thermal loads.

Need 3: In addition to the traditional “clash checks” carried out on 3D plant model, piping designers should be able to check for “interference” when piping is deformed under “hot operating condition”.

Need 4: Immediate visualization of the 3D plant model while performing detailed analyses would immensely help pipe stress engineers to identify (a) all possible locations for pipe supports and (b) vacant space available in case re-routing of pipes is required.

SST Systems’ disruptive product CAEPIPE 3D+ fulfils all 4 Needs of pipe stress engineers outlined below.

Feature 1:

CAEPIPE 3D+ meets Need 1 by generating pipe stress models directly from 3D Plant Design systems such as E3D/PDMS, SmartPlant, AutoCAD Plant 3D, AutoPlant, CADMATIC, CATIA, etc.

Stress Model from 3D Plant Design Systems

Feature 2:

Need 2 is met by first having 3D piping designers use CAEPIPE 3D+ as first-level piping flexibility check software. In other words, while pipe routing, 3D piping designers use CAEPIPE 3D+ to perform a few basic stress compliance checks, specifically to make sure the layout is flexible enough to absorb thermal expansion/contraction of pipes.

First-level Stress Check by Designers

Feature 3:

Once 3D piping designers finalize the layout after performing first-level piping flexibility checks, they can meet Need 3 by using CAEPIPE 3D+ to check for interference between the “deformed” layout of piping under “hot operating condition” and adjacent objects. This feature is available only on CAEPIPE 3D+ for E3D/PDMS and CADMATIC.

Clash Check under HOT Condition

Feature 4:

The “thermal stress-compliant” and “hot-clash-free” CAEPIPE 3D+ models resulting from Features 2 and 3 are transferred to pipe stress engineers (a) to carry out detailed analyses for loads such as deadweight, thermal, wind, seismic and dynamic loads, (b) to arrive at proper support scheme to meet all aspects of pipe stress requirements, and (c) to generate detailed stress reports.

CAEPIPE 3D+ meets Need 4 of pipe stress engineers by providing immediate visualization of the 3D plant model while performing analyses. Such instant visualization helps (a) to identify all possible locations for pipe supports, and (b) to identify vacant space available in case re-routing of pipe is required.

Detailed Analysis by Stress Engineers

Overview of CAEPIPE 3D+

Pipe stress software CAEPIPE 3D+ has two (2) parts built-in as listed below.

Part 1 generates pipe stress models in CAEPIPE 3D+ format from:

    • Plant database of 3D Plant Design software E3D/PDMS and CADMATIC, and
    • PCF files generated from plant database of 3D Plant Design software such as SmartPlant, AutoCAD Plant 3D, AutoPlant, CATIA, CADWORX, etc.

    by reading the following from the plant database / PCF files of the above 3D Plant Design software:

    • Piping geometry, pipe sections and material properties,
    • Temperature, pressure and weight of pipe fittings,
    • Thermal anchor movements at equipment nozzles,
    • Allowable loads at equipment nozzles, and
    • Pipe support details to create the corresponding hangers, guides, etc. in CAEPIPE 3D+.

Part 2 of CAEPIPE 3D+ is the same as the full-fledged internationally accepted pipe stress software CAEPIPE, which reads the stress models generated through Part 1. For modeling and analysis features of CAEPIPE, review CAEPIPE User’s Manual, Technical Reference Manual and Code Compliance Manual.

Flexible Usage of CAEPIPE 3D+

Each licensed seat of CAEPIPE 3D+ currently allows the use of the following 4 modules, with the only restriction being only one module can be used at any point in time. As listed below, CAEPIPE 3D+ can be used as a stand-alone CAEPIPE in case 3D plant database or PCF files are not available to work with.

  • CAEPIPE 3D+ for E3D/PDMS*
  • CAEPIPE 3D+ for CADMATIC*
  • CAEPIPE 3D+ for PCF files generated by 3D Plant Design Systems such as SmartPlant, AutoCAD Plant 3D, AutoPlant, CATIA, CADWORX etc.
  • CAEPIPE (stand-alone)

In short, all four modules are available for use by a licensed CAEPIPE 3D+ seat, but only one module at any point in time.

*CAEPIPE 3D+ runs as an on-line, add-on module to E3D/PDMS/CADMATIC, whereby a 3D piping designer transfers piping layouts and all available data from E3D/PDMS/CADMATIC to CAEPIPE 3D+ directly and performs first-level stress compliance checks without exiting E3D/PDMS/CADMATIC. Similarly, a pipe stress engineer performs detailed analyses of stress models received from the 3D piping designer without exiting E3D/PDMS/CADMATIC.

Benefits derived from CAEPIPE 3D+

  • The same full-fledged pipe stress software CAEPIPE 3D+ is used with many 3D Plant Design systems or as a stand-alone stress software, based on the requirements of projects.
  • CAEPIPE 3D+ input files can be generated directly from 3D Plant Design systems (thereby avoiding manual creation of stress models).
  • CAEPIPE 3D+ can be used first by 3D piping designers as a first-level piping flexibility check software. This step substantially reduces the number of design iterations between the piping layout and stress departments, resulting in huge time saving during design.
  • Using CAEPIPE 3D+ module for E3D/PDMS/CADMATIC, 3D piping designers can check for interference between “piping deformed under hot operating condition” and adjacent objects.
  • When CAEPIPE 3D+ is used on E3D/PDMS/CADMATIC, 3D plant model can be instantly viewed by 3D designers during their first-level stress checks and by pipe stress engineers during analyses.
  • Stress analysts are able to identify all possible locations for pipe supports on the 3D plant model, as it contains all supporting objects such as steel and concrete structures adjacent to the concerned piping system. These possible pipe support locations, once marked in the 3D plant model, are automatically transferred as “nodes” in the CAEPIPE 3D+ input files.

In summary, CAEPIPE 3D+ helps 3D piping designers and stress engineers to arrive at substantially better piping layout that also meets all stress requirements, thereby saving costs associated with design, materials, construction, operation and maintenance.

CAEPIPE 3D+ Videos

CAEPIPE 3D+ for PDMS/E3D