ISO/TS 10811-1:2000 機械的振動と衝撃—敏感な機器を備えた建物の振動と衝撃—パート1：測定と評価 | ページ 2

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO 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. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.

The main task of technical committees is to prepare International Standards. 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.

In other circumstances, particularly when there is an urgent market requirement for such documents, a technical committee may decide to publish other types of normative document:

• an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in an ISO working group and is accepted for publication if it is approved by more than 50 % of the members of the parent committee casting a vote;
• an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting a vote.

An ISO/PAS or ISO/TS is reviewed every three years with a view to deciding whether it can be transformed into an International Standard.

Attention is drawn to the possibility that some of the elements of this part of ISO/TS 10811 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO/TS 10811-1 was prepared by Technical Committee ISO/TC 108, Mechanical vibration and shock, Subcommittee SC 2, Measurement and evaluation of mechanical vibration and shock as applied to machines, vehicles and structures.

ISO/TS 10811 consists of the following parts, under the general title Mechanical vibration and shock — Vibration and shock in buildings with sensitive equipment:

• Part 1: Measurement and evaluation
• Part 2: Classification

Annexes A and B of this part of ISO/TS 10811 are for information only.

Introduction

This part of ISO/TS 10811 proposes a new method for specifying and evaluating the performance of buildings housing equipment which is sensitive to shock and vibration. The purpose is to encourage users and manufacturers of sensitive equipment to collect data using this method to facilitate exchange of information and assessment of the usefulness of the methodology.

1 Scope

This part of ISO/TS 10811 defines methods of measurement, algorithms for analysis and the report of shock and vibration data for equipment in buildings which is sensitive to shock and vibration. The methods are applicable to the quantification of a future installation or the verification of an existing one.

Accurate vibration data acquisition, analysis and uniform reporting methods are needed to evaluate vibration relative to manufacturers' and generic vibration criteria. Expected levels of vibration can be found in IEC 60721. Procedures for testing of equipment can be found in IEC 60068.

The types of shock and vibration considered are those transmitted from floors, tables, walls, ceilings or isolation systems into an equipment unit. The vibration and shock response of individual mechanical or electronic parts inside the unit are not considered explicitly.

The types of sensitive equipment envisaged include, but are not limited to, the following:

• a) stationary computer systems, including the peripherals;
• b) stationary telecommunication equipment;
• c) stationary laboratory equipment such as electron microscopes, equipment using scanning probe methods, biotechnical instrumentation, mass spectrometers, etc.;
• d) mechanical high-precision instruments (tools) such as equipment for microelectronics production;
• e) optical high-precision instruments, systems for photoreproduction;
• f) electromechanical systems in traffic control centres for trains;
• g) security equipment (fire intrusion) and equipment for access control.

The types of shock and vibration considered herein can be generated by the following:

• external sources, for example traffic (by road, rail or air), or building and construction activities such as blasting, piling and vibratory compaction; the vibration response to sonic booms and acoustical excitations is also included as well as weather-induced vibration;
• equipment for indoor use, such as punch presses, forging hammers, rotary equipment (air compressors, air conditioner systems, etc.) and heavy equipment transported or operated inside a building;
• human activities in connection with the service or operation of the equipment, for example, people walking, especially on raised floors.

The measurement and evaluation of shock and vibration effects on sensitive equipment in buildings covered in this part of ISO/TS 10811 does not directly consider the human operators' capability to observe, operate or maintain the equipment. For vibration effects on human beings, see ISO 2631.

The frequency range of interest is normally 2 Hz to 200 Hz. Normally the dominant frequencies are less than 100 Hz because they represent the response of the elements in the building. For special purposes, another frequency range may be used and the numbers referring to frequency range should be changed accordingly.

The vibration amplitude and duration depend mainly upon the source, its distance from sensitive equipment, and the response of the elements of the building containing the sensitive equipment. Expressed in terms of vibration velocity, the values to consider are in the range 0,001 mm/s to 10 mm/s.

This part of ISO/TS 10811 deals only with vibration from a maximum amplitude point of view. The concept of vibration dose (e.g. estimation of fatigue life) is not treated.

2 Normative reference

The following normative document contains provisions which, through reference in this text, constitute provisions of this part of ISO/TS 10811. For dated references, subsequent amendments to, or revisions of, this publication do not apply. However, parties to agreements based on this part of ISO/TS 10811 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards.

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