Life cycle integration of 3-D CAD systems, I-SKETCH, PIPENET and TRIFLEX in modification engineering

1
Life cycle integration of 3-D CAD systems,
I-SKETCH, PIPENET and TRIFLEX in modification
engineering

• By Stefan Mikulski, Nor-Par Online A/S

2
The information workflow in modification
engineering
3-D CAD Plant Design System
Fluid Flow Analysis(PIPENET)
Piping Stress Analysis(TRIFLEX)
3
The information transfer today

1. 3-D piping models made in Plant Design Systems
   exist. The piping department prints isometric
   drawings on paper
2. Isometric drawings are passed to mechanical
   department for Piping Stress Analysis in TRIFLEX
   Static
3. Isometric drawings are also used for Transient
   Fluid Flow Analysis in PIPENET Transient
4. Results from PIPENET Transient are passed on
   paper for Piping Stress Analysis in TRIFLEX
   Dynamic
5. The results of Piping Stress Analysis must be
   drawn manually in AutoCAD or MicroStation as
   Stress Isometrics
6. Results from PIPENET and TRIFLEX are passed on
   paper to Piping Department for updating the 3-D
   CAD models
7. All data transfer is done on paper or via
   non-intelligent CAD drawings

4
The drawbacks of the traditional information
transfer

• The data entry is made many times
• Very expensive man-hour approach. Engineers use
  most of time to enter data before they can focus
  on solving the engineering problem
• Data inconsistency and mistakes cannot be avoided
• Significant expenses are involved with
  cross-checking of the data between disciplines

5
Life Cycle Solution
6
Benefits of Life Cycle Solution

• Single data entry. Data are used throughout
  disciplines and exchanged as digital files
• Data consistent between all systems
• Limited need for data cross-checking
• Saved time and money

7
Smart Stress Iso
Stress Isometric Drawings
IDF/PCF
I-SKETCH(ISOGEN)
TRIFLEX
Piping Specs
Smart Stress Iso
8
Smart Stress Iso Workflow

1. The administrator I-CONVERTs all 3-D CAD Specs
   into I-SKETCH format one time
2. The engineer imports needed CAD Iso files into
   I-SKETCH. A piping system can be build out of
   isometric drawings
3. Smart Stress Iso transfers piping system models
   to TRIFLEX
4. Piping Stress Analysis is done in TRIFLEX. The
   engineer takes decisions about supports
   locations and functions and modifies the piping
   geometry as needed to meet Code Compliance
5. The engineer introduces the necessary changes to
   the model in I-SKETCH
6. Smart Stress Iso creates Stress Isometrics based
   on I-SKETCH geometry and TRIFLEX data to document
   modifications
7. The final piping system can be I-EXPORTed from
   I-SKETCH to 3-D CAD system as new modified 3-D
   CAD model

9
Smart Stress Iso Benefits

• Data are entered once, only when necessary
• Piping Specs made once are further re-used
• All data transfer is done by digital files. Data
  consistency is ensured
• The need for consistency checking is greatly
  reduced
• I-SKETCH is an inexpensive and very easy tool for
  modification work. You do not need to be CAD
  operator to work with I-SKETCH
• The work time is used efficiently to solve
  problems not to enter data into TRIFLEX

10
PIPENET Transient toTRIFLEX Dynamic (PTR2TRD)

• TRIFLEX Dynamic allows Time History Analysis
  (THA)
• The required data for TRIFLEX THA are Time
  Functions and Nodal Excitations. It is very
  difficult to guess these data
• PIPENET Transient calculates forces in a piping
  system based on transient fluid flow calculations
• PTR2TRD application will transfer the PIPENET
  Transient force information to TRIFLEX Dynamic as
  Time Functions and Nodal Excitations

11
PTR2TRD Data Flow
PIPENET Transient
TRIFLEX Dynamic
TRIFLEX Table Collection File
PIPENETForce File (FRC)
TRIFLEXNodal Excitations File
PTR2TRD
12
PTR2TRD Workflow

1. Create and solve simulation problem in PIPENET
   Transient. Ask the program to generate Force File
2. Create a piping network in TRIFLEX and solve it
   in Static with Mode Shapes and Frequencies
3. Convert the PIPENET Force File to TRIFLEX Time
   Function (TTC) and Nodal Excitation (THA) files
4. Open TTC and THA files in TRIFLEX
5. Run Time History Analysis in TRIFLEX

13
PTR2TRD Benefits

• Transient Fluid Flow analysis is the reliable
  tool to provide excitation information for Piping
  Stress Time History Analysis
• Thousands of data points are transferred in
  seconds
• The data consistency is ensured
• PTR2TRD automatically transforms the coordinate
  systems and converts engineering units
• Time and money are saved