PASSAT Design calculations for vessels and apparatus forstrength and stability

The PASSAT is used to calculate the strength andstability of vessels, vehicles and their components in order to assessthe carrying capacity in the working conditions, as well as in terms of testingand installation

The program is designed for use in the design, reconstruction anddiagnostics of vessels and vehicles, as well as during testing calculationsobjects refining, chemical, petrochemical, gas, oil and other related industries PASSAT - advantage compared with similar programs is to focus on theRussian legal framework, a lower price, intuitive measuring, built-in database


Calculates the Strength and Stability of Horizontal and Vertical Vessels and Equipment on Domestic Regulations (ND)

Calculation is carried out both on the basis of the collection as the last

GOST R 52857 (1-12) -2007 - GOST 14249-89 preceding it, GOST 25221-82 ,- GOST26202-84 GOST 24755-89-RD 26-15-88 - RD RTM 26-01-96-77-RD 10-249-98-OST 26-01-64-83

RD 26-01-169-89-RD24-200-21-91


Calculation of the strength and stability of the column based on wind loadsand seismic actions Calculation is based on GOST 51273-99, GOST 51274-99


Calculation Of The Strength And Stability Of Shell And Tube Type HeatExchangers And Air Coolers (Air-Cooling) On The Basis Of GOST R 52857.7-2007, RD26-14-88, GOST 30780-2002.


Calculation of the strength and stability of horizontal and verticalvessels taking into account loadings from seismic effects available based SRT-CA-03.003-2009 ,Vessels and vehicles. Limits and methods of strength calculation for seismiceffects


Calculation of the strength and stability of the vertical steel cylindricaltanks on SRT-CA-03-002-2011 , including from wind, snow and seismiceffects


An additional feature is the calculation of tie-in fitting shells anddished ends, flanges and reinforcing effects of pressure and external loads ontraditional American and British documents. The calculation is based onthe rules based on strength equipment ASME SEC.VIII, ASME SEC.II, WRC-107,WRC-297

Input Data

Type-material - geometrical characteristics of the elements or of thevessel device, the type and arrangement of bearings, test type, the magnitudeof loads

Feature selection is made ​​ from the materials database, which may be adjustedor supple mented by theuser. Results of calculation are given in the form of a comprehensivereport on the elements of the model with all the intermediate results ofcalculations derived in MS word format furnished by ESKD

PASSAT Advantagecompared with similar foreign programs (compress, vessel, pv elite, etc.) Is tofocus on the russian legal framework, a lower price, intuitive measuring,built-in database of Russian materials.

When you create a model can be used embedded database standard elements -shells, heads, bearings, flanges, gaskets and other databases of materials andcomponents are open and can be replenished by the user.

Basic module PASSAT

Payment shells horizontal vessels and equipmentwith an arbitrary number of poles (more than 2), and their location,construction diagrams of displacements, shear forces, bending moments, reservesof strength and stability;

Calculation of strength and stiffness of thejunction with the vessel nozzle (device);

Payment reinforcing flange connections and hardwarefrom the pressure of external forces and moments, as well as thermal stresses-oval fittings-Payment of flat detachable lids

Module PASSAT Columns

Determination of the period of the oscillationfrequency lower turrets with an arbitrary number of elements;

Calculation effort of the column of wind loads andseismic effects

Possibility of changes in wind pressure, dependingon the type of terrain on snip 2.01.07-85

Payment for strength and stability elements of thecolumn

Support payment type cylinder + cone with thepossibility of job transition (down hole) shell;

Automatically detect the position andcharacteristics of the most dangerous cross section of the support shell;

Calculation of the column set on a pedestal. Thepedestal may be formed as a cylindrical or conical shell or a metal;

Definition of the weakest section bearing shell ofthe column PASSAT performs automatically, using an iterative method-Calculationof loads of the column on a pedestal and foundation

Module PASSAT Exchangers

Configure the heat exchange element in a singlemulti-dialogue

Definition of settlement efforts in the tube sheet-shell-pipes

Tube-sheet-pipe casing-compensator-expander-floating head

Module PASSAT Seismic

Load calculation of seismic effects on thehorizontal and vertical vessels and apparatus

Calculation of elements of vessels and vehiclestaking into account loadings from seismic effects

Module PASSAT Tank

Payment on the strength and stability of a wall, framelessfixed roof and bottom of the tank, including wind, snow and seismic effects;

Calculation of anchoring walls;

The maximum permissible loads on nozzles in thetank wall penetrations.

Module PASSAT Fitting

Calculation of strength and stiffness of the junctionwith the vessel nozzle (device);

  Reinforcing flangeconnections - hardware from the pressure of external forces - moments,-as wellas thermal stresses.


Cylindrical and Conical Shell Transitions AreSmooth And Supported Stiffening Rings

Welded Bottom - Detachable Lid - Bottom (Spherical,Ellipsoidal, Torosfericheskie Tapered, Flat (Including Ribs), SphericalNeotbortovannye

Saddles - Cylindrical Shells in Their Places ofBearing for Horizontal Vessels and Vehicles

Cylindrical Shells and Heads In Areas Bearing OnThe Support Legs And Feet For Vertical Vessels And Vehicles;

Strengthening Of Holes

Tie (Fitting) In the Shell, Dished Ends and HousingTanks

Flanged Connections

Elements of the Column of Wind And Seismic Impacts,Including Mounted On A Pedestal;

Bearing Shell of the Column;

Tube Sheets, Casing, Tubing, Joints, Reamers,Floating Head Heat Exchangers;

Elements of Vessels and Vehicles with Shirts (Cylindrical,U-Shaped, Partially Covered Shirts, With Coil and Register Channels

Functional features

Automaticdetermination of the calculated values ​​ such as weight, calculated length characteristicsstiffening rings (as a cylindrical shell, and the saddle), the length of thechords of circles and other elements a fter setting the geometry and properties of the materialsused;

Calculated thicknesses definition (both from internal andexternal pressure from) and allowable pressures, forces and moments in the jobelement;

When the geometrical parameters or loading conditions inthe element after a warning automatically change the data in the adjacentelements of the entire model - thus maintaining its integrity;

The choice of materials used ( GOST, ASME, EN ) fromthe database with the ability to recharge, while the magnitude of permissiblestress, elasticity modules, etc. Substituted and changed when the programmaterial, the temperature of the wall thickness or automatically;

Job aids elements (flanges, gaskets, studs, lids,bottoms, tubes,) from the database according to GOST, OST, ATC, STATION -Formationtable fittings


Graphical display of volumetric geometry with theability to edit the colours   as separateelements, and the entire model. Skeleton and translucent images to see the internalcomponents

Analysis of baseline data if the user has notentered all the necessary data for the calculation or introduced themincorrectly. the program issues a warning as long as all the data will not begiven. Construction diagrams loads and displacements inthe calculation of columns and saddles. Setting dimensions ( SI, MKS, "BRITISH"SYSTEM OF UNITS, ETC .). Formation, view and print the full report on theelements of the model calculations with intermediate results of calculations. Reportfiled in accordance with eskd and fully complies with similar calculations madeby hand.Automatic updates