WIND LOADS

PSE PETROLEUM Structural Engineering® Software

WIND LOADS

The API 4F specifications for wind loads based on the velocity component approach is integrated into the PSE Petroleum Structural Engineering software. Accordingly, drilling structures are classified based on their Structural Safety Level (SSL) and their offshore or onshore location.

The design reference wind velocity value represents a 3-second gust wind measured in knots at an elevation of 10 m (33 ft) in open water, with an associated return period of 100 years.

AUTOMATED WIND LOAD AND WIND WALL CALCULATION

The Petroleum Structural Engineering® software has a tool to generate wind and ice loads on open structures such as drilling structures. It allows generating automated ice loads or wind loads on each element of the structure.

The PSE software automates wind loads applied to members. These loads are calculated based on the projected area, projected pressures or velocity components approaches. The program offers a variety of wind profiles and automates the determination of the shape coefficients (drag factors).

WIND
ENVIRONMENTS

The API 4F specifications are applicable to the following wind environments:
– Operational wind
– Erection wind
– Transportation wind
– Unexpected wind
– Expected wind
The PSE software allows different configurations of the drilling structure models according to a given wind environment. The program requires the input of the rated design wind velocity, Vdes, and accounts for the design reference wind velocity and wind velocity multiplier. The program computes the local wind velocity, Vz, by scaling the rated design wind velocity by the appropriate elevation factor, ß, in order to obtain the velocity for estimating the wind forces.

A wind profile in a selected direction provides the wind intensity that generates the wind loads to structural members and surface areas. As many as required wind directions can be defined through different basic loads.

WIND
INTENSITY

MEMBER
SELECTION

Member selection procedures allow the application of the wind profile to the entire structure or to specific zones and excluding members behind or in front of wind walls. It is possible to apply the API 4F wind loads directly to elements such as equipment, wind walls and other objects attached to the drilling structures.

The shape factor is automated in the PSE software for various section shapes. The program accounts for the gust factor and the reduction factor for shielding by members and appurtenances.

AUTOMATED
SHAPE FACTOR

PSE FEATURES

ADVANCED ANALYSIS

The advanced structural analysis of the PSE software allows the engineer to achieve specialized analyses crucial to offshore and onshore projects.

WIND LOADS

The API 4F specifications for wind loads based on the velocity component approach is integrated into the PSE Petroleum Structural Engineering software.

VESSEL DYNAMIC MOTIONS

In the PSE software, vessel dynamic motions are defined according to API 4F Specification for Drilling and Well Servicing Structures.

WAVE AND CURRENT LOADS

Wave and current loads are analyzed through linear and nonlinear kinematics in accordance with the API RP 2A specifications.

TUTORIAL VIDEOS

Camera Tools

Discover the various camera tool functionnalities in the PSE software designed to help users to customize display of all graphical objects.

Catenary Cables

The catenary cable element is a highly non-linear element used to model the catenary behavior of a cable suspended between two points under the effect of its self-weight.

Duplicating a Model

Learn how you can easily and quickly duplicate a model in the PSE Software.

Notional Loads

The notional load applies to all static and seismic analyses, not only to P-Delta analysis and the analysis of one-way elements.

Vessel Motions

In the PSE software, vessel dynamic motions are defined according to API 4F Specification for Drilling and Well Servicing Structures.

Spatial Objects

Spatial objects are used to model non-structural secondary elements attached to the structure. These elements add no stiffness to the existing model.

Unit Systems

Metric, imperial and mixed units systems are allowed and can be modified at any time. Reports are printed according to any unit system.

CONTACT

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