ISO 13643-1:2013 pdf download.Ships and marine technology一Manoeuvring of ships一Part 1:General concepts, quantities and test conditions.
This part of ISO 13643 applies to manoeuvring tests with surface ships, submarines, and models.
This part of ISO 13643 defines concepts, symbols, and test conditions constituting general fundamentals which are to be applied for the description and determination of certain ship manoeuvring characteristics together with the respective test-specific physical quantities contained in ISO 13643-2 to ISO 13643-6.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 19019, Sea-going vessels and marine technology — Instructions for planning, carrying out and reporting sea trials
ISO 80000-1, Quantities and units — Part 1: General
ISO 80000-3, Quantities and units — Part 3: Space and time
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
manoeuvring
all manoeuvres, manoeuvring tests, and tests or other methods, such as computations, simulations, etc. to establish manoeuvring characteristics
Note 1 to entry: Manoeuvring includes measures to maintain cruising conditions under external disturbances.
3.2
manoeuvre
ship operation measures to change course and/or speed, and in case of submarines, depth
Note ito entry: Special actions taken, e.g. for casting-off, turning aside, or rescuing (person over board), are included.
3.3
manoeuvring test
test conducted with a full-scale ship, submarine, or a model to determine and evaluate the manoeuvring characteristics under standardized conditions
Note ito entry: Manoeuvring tests are often similar to manoeuvres but organized in such a manner that, as far as possible, specific manoeuvring characteristics can be measured individually.
3.4
CC-Code
computer compatible symbols introduced by the 14th International Towing Tank Conference
3.5
manoeuvring device
rudder, azimuthing thruster, hydroplane, cycloidal propeller, or equivalent system used to manoeuvre a vessel
3.6
quantities and units
quantities and their units shall be in accordance with ISO 80000-1 and ISO 80000-3
4 Axis systems
4.1 General
Axis systems are three-dimensional, orthogonal, right-handed systems. Earth-fixed and ship-fixed axis systems are defined in Table 1 and Table 2.
4.2 Earth-fixed axis system
Table 1 — Symbols and their definitions for the earth-fixed axis system
7.9 Dynamic stability
7.9.1 General
A ship is described as dynamically stable if it returns to its original steady-state of motion after a temporary external disturbance.
Dynamic stability is particularly important with small angles of yaw and pitch.
In 7.9.2 and 7.9.3. the linearized equations for forces and moments acting on the ship are given. The simultaneous solution leads to differential equations from which the condition for a stable motion can be derived. This condition follows from the characteristic equations. The solutions of those equations are named stability indices. ISO 13643-1 pdf download.