ISO 1151-4-1994 scan

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INTERNATIONAL

STANDARD IS0

1151-4

Second edition

1994-11-01

Flight dynamics - Concepts, quantities

and symbols -

Part 4:

Concepts, quantities and symbols used in the study

of aircraft stability and control

MBcanique du vol- Concepts, grandeurs et symboles -

Partie 4: Concepts, grandeurs et symboles utilis& pour I’btude de la stabilitk et du

pilotage des avions

Reference number

IS0 1151-4:1994(E)

Foreword

IS0 (the International Organization for Standardization) is a worldwide federation

of national standards bodies (IS0 member bodies). The work of preparing Inter-

national Standards is normally carried out through IS0 technical committees.

Each member body interested in a subject for which a technical committee has

been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take

part in the work. IS0 collaborates closely with the International Electrotechnical

Commission (IEC) on all matters of electrotechnical standardization.

Draft International Standards adopted by the technical committees are circulated

to the member bodies for voting. Publication as an International Standard requires

approval by at least 75 % of the member bodies casting a vote.

International Standard IS0 1151-4 was prepared by Technical Committee

ISO/TC 20, Aircraft and space vehicles, Sub-Committee SC 3, Concepts, quantities

andsymbols for flight dynamics.

IS0 1151 consists of the following parts, under the general title Flight dynamics -

Concepts, quantities and symbols :

- Part 7: Aircraft motion relative to the air

- Part 2: Motions of the aircraft and the atmosphere relative to the Earth

- Part 3: Derivatives of forces, moments and their coefficients

- Part4: Concepts, quantities and symbols used in the study of aircraft

stability and control

- Part 5: Quantities used in measurements

- Part 6: Aircraft geometry

- Part 7: Night points and flight envelopes

- Par 8: Concepts and quantities used in the study of the dynamic behaviour

of the aircraft

- Part 9: Models of atmospheric motions along the trajectory of the aircraft

0 IS0 1994

reproduced or utilized in any form or by any means, electronic or mechanical,

including photocopying and microfilm, without permission in writing from the

publisher.

International Organization for Standardization

Case postale 56 l CH-1211 Geneve 20 l Switzerland

Printed in Switzerland

@ IS0 IS0 1151-4:1994(E)

IS0 1151 is intended to introduce the main concepts, to include the more

important terms used in theoretical and experimental studies and, as far as

possible, to give corresponding symbols.

In all the parts comprising IS0 1151, the term “aircraft” denotes a vehicle intended

for atmosphere or space flight. Usually, it has an essentially port and starboard

symmetry with respect to a plane. That plane is determined by the geometric

characteristics of the aircraft. In that plane, two orthogonal directions are defined:

fore-and-aft and dorsal-ventral. The transverse direction, on the perpendicular to

that plane, follows.

When there is a single plane of symmetry, it is the reference plane of the aircraft.

When there is more than one plane of symmetn/, or when there is none, it is

necessary to choose a reference plane. In the former case, the reference plane is

one of the planes of symmetry. In the latter case, the reference plane is arbitrary.

In all cases, it is necessary to specify the choice made.

Angles of rotation, angular velocities and moments about any axis are positive

clockwise when viewed in the positive direction of that axis.

All the axis systems used are three-dimensional, orthogonal and right-handed,

which implies that a positive rotation through 7rJ2 around the x-axis brings the

y-axis into the position previously occupied by the z-axis.

The centre of gravity coincides with the centre of mass if the field of gravity is

homogeneous. If this is not the case, the centre of gravity can be replaced by the

centre of mass in the definitions of IS0 1151; in which case, this should be

indicated.

Numbering of sections and clauses

With the aim of easing the indication of references from a section or a clause, a

decimal numbering system has been adopted such that the first figure is the

number of the part of IS0 1151 considered.

iii

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标签： #ISO

摘要：

ISO 1151-4-1994 scan 提供了关于飞行器动力学中速度状态与坐标轴系统术语与定义的标准文档扫描版本，是航空航天工程领域进行设计、测试与文献查阅时不可或缺的参考规范，帮助从业者准确把握飞行力学中的速度参数与轴系概念。

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