matveev alexey , ph.d. , senior research scientist eugenii shapiro , ph.d. , chief specialist
DESCRIPTION
Matveev Alexey , Ph.D. , senior research scientist Eugenii Shapiro , Ph.D. , chief specialist NTP « Truboprovod » , Moscow, Russian Federation [email protected] http://www.truboprovod.ru. START Prof – THE PIPE FLEXIBILITY AND STRESS ANALYSIS. - PowerPoint PPT PresentationTRANSCRIPT
www.truboprovod.ruPSRENTP Truboprovod
START ProfTHE WORLD’S FIRST PIPE STRESS ANALYSIS SOFTWARE
PSRENTP Truboprovod
www.truboprovod.ruPSRENTP Truboprovod
START Advantages compared to other pipe stress software Low price. Two times lower than other pipe stress software
Has a long history since 1969 Has a lot of active users, well tested, quality assurance system Very smart, easy and friendly user interface. Even the beginner can perform pipe stress analysis without a special training. Faster piping modeling than other software Exclusive software that implements the Russian pipe stress code and widely accepted by Russian expert companies Very smart, fast and easy to use soil modeler Can check the insulation stress No need to think about load cases. All load cases are pre-defined Can calculate the creep effect at high temperature piping: creep stress relaxation in operating state and creep self-springing in cold state Can calculate the cold state of piping after cooling down from hot state considering the reverse effect of friction forces
www.truboprovod.ruPSRENTP Truboprovod
START Advantages compared to other pipe stress software Can easily perform plastic piping analysis PE (polyethylene), PP
(polypropylene), PVC (polyvinyl chloride), PB (polybutylene), PVDF (polyvinylidene fluoride) Can easily perform FRP/GRP/GRE piping analysis Easy vacuum piping stability analysis from pressure, and internal forces Automatic on-the-fly pressure design checking of all pipes and fittings
Make an order now! Contact us for any questions:
www.truboprovod.ruPSRENTP Truboprovod
Features ASME B31.1-2016 code. Other ASME and other codes coming soon Automatic spring and constant load hanger selection Equipment nozzle flexibility modeling Consider nonlinear effects Consider tee branch flexibility Centrifugal pump load check per API 610, GOST 32601-2013 Flange leakage check by equivalent pressure method Expansion joints modeling: Axial, gimbal, lateral, nonstandard Input data error checking and reports. The error checker analyzes the user input and checks for consistency from both engineering and geometrical point of view Exports input data and analysis results to Microsoft Word
www.truboprovod.ruPSRENTP Truboprovod
START-Elements - Piping Designer’s Tool Support span calculation Surface vehicle load on the buried pipe Buried pipe longitudinal stability analysis Above ground pipe longitudinal stability analysis Pipe, bend, tee, reducer, cap wall thickness calculation One-time expansion joint span length calculation U-, Z-, L-shaped loops analysis And more…
www.truboprovod.ruPSRENTP Truboprovod
Import and Export Import and Export to PDMS (two-way interface) Import from Pland4D Import from PCF file format (Autoplant, PlantSpace, Plant3D, CADWorx, SmartPlant e.t.c.) Import from Caesar II Neutral file (under development till 2017) Import and export to Hydrosystem software Import and export to START Neutral format file Export to Dxf format (Autocad) Export report to Word
www.truboprovod.ruPSRENTP Truboprovod
First introduced in 1969
De facto standard in Russia and CIS countries
Year Machine/operating system
1969 Minsk 2 computer
1972 Minsk 32 computer
1976 ES-1040 computer
1992 PC: MS DOS
2000- PC: Windows 95,XP,7,8,10
www.truboprovod.ruPSRENTP Truboprovod
START is used by more than 1500 companies, more than 8000 licenses
Russia, Ukraine, Belarus, Kazakhstan, Turkmenistan, Uzbekistan, Lithuania, Czech Republic, Serbia, Finland, Italy, Germany, UK, Japan, China, South Korea
Russia
UkraineBelarus
Kazakhstan
China
www.truboprovod.ruPSRENTP Truboprovod
Russian, English, and Chinese user interface and user’s manual
www.truboprovod.ruPSRENTP Truboprovod
Codes
Type Code name
Power piping ASME B31.1-2016 (USA), DL/T 5366-2014 (China), RD 10-249-98 (Russia)
Process piping GOST 32388-2013 (Russia)
Gas&Oil transmission
SNiP 2.05.06-85, SP 36.13330.2012 (Russia)
District heating CJJ/T 81-2013 (China), GOST R 55596-2013 (Russia)
FRP/GRP/GRE, Plastic piping
ISO 14692-3:2002 (International), GOST 32388-2013 Plastic piping (Russia)
www.truboprovod.ruPSRENTP Truboprovod
ASME B31.1-2016 Project settings Pipe properties Bend properties Tee properties
www.truboprovod.ruPSRENTP Truboprovod
ASME B31.1-2016 Code stress table Features:
On-the-fly add the axial force stress
On-the-fly add creep stress On-the-fly change stress range
between installation state to operation state or cold state to operation state
Tooltip text shows all stress calculation equations with all variable values for every table cell
All load case stresses are shown in one table (weight, expansion , test, creep)
Table can be easily copied to Microsoft Excel or Word by one click
www.truboprovod.ruPSRENTP Truboprovod
Buried piping modeling
Vertical soil flexibility
Longitudinal soil flexibilityHorizontal soil flexibility
Friction
Vertical soil P-∆ diagram
Horizontal soil P-∆ diagram
Longitudinal soil P-∆ diagram (friction)
K1 – Polyurethane foam insulation
K2 – Expansion cushion flexibility
K3 – Horizontal soil flexibility
K4 – Vertical soil flexibility
K5 – Longitudinal soil flexibility
Interaction between pipeline and soil in buried pipelines, take into account nonlinear soil flexibility, polyurethane insulation layer and expansion cushions
www.truboprovod.ruPSRENTP Truboprovod
Buried piping modeling
Bending zone #1
Sliding zone #2Restrained zone #3
Soil drop or swelling
Soil thaw
www.truboprovod.ruPSRENTP Truboprovod
Soil Database contain soil properties, depth, soil type and insulation type is specified in pipe properties. That’s all you need to model buried piping with START
www.truboprovod.ruPSRENTP Truboprovod
No need to select restrained and unrestrained zones for buried piping. Everything calculated automatically
baaHL SA/FiS).to(S 50
baaHL SA/FiSS
baaHL SA/FiS.S 50
No need to run soil modeler each time you change your model. Soil springs are placed automatically during analysis. Very fast
www.truboprovod.ruPSRENTP Truboprovod
START also consider the buoyancy of water and changing of the soil properties located in water (soil liquefaction)
Ground water level
Ground water level
www.truboprovod.ruPSRENTP Truboprovod
www.truboprovod.ruPSRENTP Truboprovod
Buried pipe insulation stress check
Axial stress depend on steel pipe axial stress
Hoop stress, depend on steel pipe hoop stress from FEM model
Radial stress from FEM model
Shear hoop stress from FEM model
Shear axial stress, depend on axial friction force
Equivalent insulation stress
MPa
MPa
MPa
z
065.0
04.0
15.0
ппу
ппуz
ппуe
Stress is checked in 5 points
Allowable insulation stress
www.truboprovod.ruPSRENTP Truboprovod
High temperature piping with creep effectHigh temperature piping creep effect
time
strain
Creep lead to expansion stress relaxation (reduction) with time
time
stress
START ignore cold spring added by user for high temperature piping because code said so. Any cold spring will disappear due to creep relaxation
Stress concentration zones
www.truboprovod.ruPSRENTP Truboprovod
High temperature piping with creep effect Creep lead to piping self cold-spring in cold condition
Average stress - stress, at which the creep fracture is equal to real creep curve fracture
Stress after relaxation caused by self-spring after cooling down
Stress at first heating
Time
Temperature
Stress
Stress in cold condition (after relaxation)
Stress after relaxation
Stress
Stress after relaxation
Stress at first heating
Average stress
.
,5.0
.
.
нфх
нфр
tt
tt
- mean expansion temperature difference to consider stress relaxation, - mean expansion temperature difference to consider self-spring in cold condition, - real expansion temperature difference, - creep diminish factor, - creep self-springing factor.
фрt .
фхt .
нt
www.truboprovod.ruPSRENTP Truboprovod
START consider the remaining friction forces at the cold condition of the pipeline. No analog in other software. It is important for pre-
stretched buried pipelines
Operation condition of above ground pipeline
Cold condition of above ground pipeline (after cool down). There’s a big anchor force due to remaining friction
Operation condition of buried pipeline
Cold condition of buried pipeline (after cool down). There’s a big anchor force due to remaining friction
www.truboprovod.ruPSRENTP Truboprovod
Plastic piping analysis
Chemical resistance, Joint strength,Safety factors
1 - Pressure elongation2 - Temperature elongation3 - Chemical swelling elongation
Young’s module depends on time, stress and temperature
Bend stress intensification factors
s
sDp a
2σкц
zMzNz σσσ
F
Nik a
pzN σ
WMi tt
2τ
222τ3σσσσσ zzpsbpsbe mm
sD/s
sd/sii
a
baboi
2
2 2
Tee
Reducer
,//006,02,1 25,022
8,0210 sDssii i
,//003,06,0 25,022
8,021 sDssit
Allowable stress depends on time and temperature
www.truboprovod.ruPSRENTP Truboprovod
Plastic piping analysis
www.truboprovod.ruPSRENTP Truboprovod
FRP/GRP/GRE piping analysis START have the database with fiberglass pipe and fitting material properties at different temperatures. Therefore START provides fiberglass analysis as easy as for the steel pipelines compared to other pipe stress software
www.truboprovod.ruPSRENTP Truboprovod
FRP/GRP/GRE piping analysisf2=0.67 f2=0.83 f2=0.83 f2=0.83
Full envelope for pipes Simplified envelope for pipes and fittings
For fittings
www.truboprovod.ruPSRENTP Truboprovod
Vacuum piping analysis
With stiffness rings
www.truboprovod.ruPSRENTP Truboprovod
START prof consider nonlinear effects Friction in sliding supports Returning force due to hanger rod rotation One-way restraints Gaps Nonlinear soil properties for buried pipes Spring and constant force hanger selection
START prof consider bourdon effect
Translation
Rotation
www.truboprovod.ruPSRENTP Truboprovod
START consider tee branch flexibility
Rigid element
www.truboprovod.ruPSRENTP Truboprovod
Automatic Spring Selection OST 108.764.01-80, OST 24.125.109-01, MN 3958-62, MVN 049-63 (Russian) LISEGA, WITZENMANN (Germany) NBT 47039-2013, China Power (China)
Constant load hanger and support selection WITZENMANN (Germany) NB/T 47038-2013 (China)
www.truboprovod.ruPSRENTP Truboprovod
Equipment and vessel nozzle flexibility modeling START-Nozzle option Nozzle-FEM software
www.truboprovod.ruPSRENTP Truboprovod
START-Elements Sliding support span calculation (strength condition and limited sag condition)
046224
02.0224
322
4322
ixxlxlEIq
DixxxlxlEIq
cpcp
Ncpcp
v<0.5DN
<0.02DN
Water
www.truboprovod.ruPSRENTP Truboprovod
START-Elements Surface vehicle load on the buried pipe
vh
viii
iv h
q
xh
hP
4
3222
4
www.truboprovod.ruPSRENTP Truboprovod
START-Elements Buried pipe longitudinal stability analysis
][NN 2
][
][1
][][
У
П
П
N
N
NN
tpП FN /][ qQQQ Fw 2
гр8 k
kw D
DZQ
11 3522пр
4пу
Q6,3
][ IEFtn
N У
)70Z/cos(3507050 гргргр2
гр ,kc,),(tgZk,QF
kгр k qDzt 3грпр 10sin5.01
tt
TEAN
24282970kg2970743
4.24.21421096.1120102.1 65
Restrained pipe fails the buckling check
www.truboprovod.ruPSRENTP Truboprovod
START-Elements Above ground pipe longitudinal stability analysis
NN
С ко л ь з я щ и е о п о р ы
2-4D 10- 41 D
Направляю щ ая опора
М ертвая опораа)
б )
2-4D 10- 41 Dв) m axL m axL m axL
5.0
0.2О севой ком пенсатор
m axL
PN PN
PNPN
5.0 7.0 0.1 0.2
][NN
)][,][max(][ 21 NNN 11 35266q4
][ IEFn
Nпу
У tpFN /2][
EI
F tp /
5,1/53,5073,01
Etp
5,20 при
5,45,2 при2///
53,50275,03,27371,01347,1
EEEtptptp
)51(
3322
5,4при
www.truboprovod.ruPSRENTP Truboprovod
Success StoriesOAO "Mosinjproject", Moscow, Russia.
Buried district heating network with polyurethane foam insulation built in Moscow. Depth 1.4 m, soil: sand, diameter 1420 mm, wall thickness 14 mm, Pressure 1.6 MPa, Temperature 130°C, product: hot water
www.truboprovod.ruPSRENTP Truboprovod
Success StoriesOAO "Mosinjproject", Moscow, Russia.
Above ground district heating network with polyurethane foam insulation built in Moscow. Diameter 1420 mm, wall thickness 14 mm, Pressure 1.6 MPa, Temperature 150°C, product: hot water
www.truboprovod.ruPSRENTP Truboprovod
Success StoriesOAO "Mosinjproject", Moscow, Russia.
Buried district heating network with polyurethane foam insulation at Moscow. Depth 2 m, soil: sand, diameter 820 mm, wall thickness 9 mm, Pressure 1.6 MPa, Temperature 130°C, product: hot water