Section 1 Environmental conditions
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Special Service Craft, July 2022 - Part 5 Design and Load Criteria - Chapter 2 Local Design Loads - Section 1 Environmental conditions

Section 1 Environmental conditions

Parent topic: Chapter 2 Local Design Loads

1.1 General

1.1.1 This Chapter contains information regarding the derivation of load criteria which are to be used for the computation of local design criteria in Pt 5, Ch 3 Local Design Criteria for Craft Operating in Non-Displacement Mode and Pt 5, Ch 4 Local Design Criteria for Craft Operating in Displacement Mode.

1.1.2 Environmental conditions include natural phenomena such as wind, wave and currents from which design data are to be derived.

1.1.3 These environmental conditions are usually described by physical variables of statistical nature.

1.1.4 The load criteria used for design are to be based on environmental data for the specific area and operation of the craft.

1.1.5 The loads imposed by the environment are to be based on extreme conditions. These arise as the craft advances in a seaway and is loaded and stressed in a random manner by dynamic forces and moments.

1.1.6 The load criteria given here are derived from experimental and theoretical studies complemented with service experience.

1.1.7 Alternative methods of establishing the load criteria will be specially considered, provided that they are based on model tests, full scale measurements or generally accepted theories. In such cases, full details of the methods used are to be provided when plans are submitted for approval.

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