GB/T 28784.3-2012 English PDF

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GB/T 28784.3-2012: Mechanical vibration -- Measurement of vibration on ships -- Part 3: Pre-installation vibration measurement of shipboard equipment
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28784.3-2012	554	Add to Cart	3 days	Mechanical vibration -- Measurement of vibration on ships -- Part 3: Pre-installation vibration measurement of shipboard equipment	Valid

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Basic data

Standard ID: GB/T 28784.3-2012 (GB/T28784.3-2012)
Description (Translated English): Mechanical vibration -- Measurement of vibration on ships -- Part 3: Pre-installation vibration measurement of shipboard equipment
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 17.160
Word Count Estimation: 28,216
Quoted Standard: ISO 31-7; ISO 1683; ISO 2041; ISO 5348; ISO/TR 13298
Adopted Standard: ISO 20283-3-2006, IDT
Regulation (derived from): National Standards Bulletin 2012 No. 28
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies requirements for different types of equipment on board the vibration (vibration to the structure of the voice sound form the structure of the ship passed) measurement guidelines, requirements and procedures, the measuring device is

GB/T 28784.3-2012: Mechanical vibration -- Measurement of vibration on ships -- Part 3: Pre-installation vibration measurement of shipboard equipment

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
. Mechanical vibration Measurement of vibration on ships Part 3. Pre-installation vibration measurement of shipboard equipment ICS 17.160 J04 National Standards of People's Republic of China Mechanical vibration ship vibration measurement Part 3. Vibration measurement equipment on board prior to installation Part 3. Pre-instalationvibrationmeasurementofshipboardequipment (ISO 20283-3.2006, IDT) Issued on. 2012-11-05 2013-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 measurement requirements and procedures 3 4.1 General 3 4.2 measuring point 4 4.3 Sensor orientation and installation 4 4.4 Measuring frequency analysis 4 4.5 Calibration 4 4.6 Environmental impact and vibration 5 4.7 Test System 5 4.8 equipment operating status 7 5 Data Evaluation 8 6 Test Report 8 Typical Appendix A (informative) generator set configurations 9 Typical Annex B (informative) Test System Configuration 11 References 23

Foreword

GB/T 28784 "Mechanical vibration ship vibration measurement" is divided into four parts. --- Part 1. General guidelines; --- Part 2. Measurement of structural vibration; --- Part 3. pre-installation vibration measurement equipment on board; --- Part 4. Measurement and evaluation of ship propulsion device vibration. This section is GB/T Part of 328,784. This section drafted in accordance with GB/T 1.1-2009, rules GB/T 20000.2-2009 given. This section uses the translation method identical with ISO 20283-3.2006 "Mechanical vibration ship vibration measurement - Part 3. Safety equipment on board Pre-loaded vibration measurements. " Consistency correspondence between this part of international documents and normative references of our files are as follows. --- GB 3102.7-1993 Quantities and units of acoustics (ISO 31-7.1992, EQV) --- GB/T 2298-2010 Mechanical vibration, shock and condition monitoring of vocabulary (ISO 2041.2009, IDT) --- GB/T 3238-1982 Acoustics volume level and a reference value (ISO 1683. 1983, NEQ) --- GB/T 14412-2005 Mechanical vibration and shock - Mechanical mounting of accelerometers (ISO 5348.1998, IDT) This part made the following editorial changes. --- Modify the part of the formula of expression and formula numbers. This part of the National mechanical vibration, shock and condition monitoring Standardization Technical Committee (SAC/TC53) and focal points. This section drafted by. China Shipbuilding Industry Corporation ○ two Institute, China Shipbuilding Industry Corporation ○ San Institute, China Shipbuilding Heavy ○ four Industry Corporation seventh Research Institute, China Shipbuilding Industry Corporation seventh eleven Research Institute, China Shipbuilding Industry Corporation seventh nineteen Institute, Wuhan University of Technology. The main drafters of this section. Guo row, Yin Xun China, Zhu Hua, Zhang Quannan, Peng Xu, Yan Xinping.

Introduction

Ship machinery and equipment will produce excessive vibration and structure-borne noise operation, which may make the crew and the passenger compartment interior noise SPL agreed with the owner over the limits. Cabin noise will affect the structure of the noise can be seen, machine-generated, up to the present section Low vibration to select the destination machine. According to the standard procedure for a single device vibration measurements and compared with the acceptance criteria determined by the contract, shipbuilders for the combined selection and installation Suitable equipment to provide the necessary information. Mechanical vibration ship vibration measurement Part 3. Vibration measurement equipment on board prior to installation

1 Scope

This section GB/T 28784 specifies the different types of vibration generated by the equipment on board (the structural vibration noise in the form of a ship knot Configuration pass) measurement guidelines, requirements and procedures, the measuring device is factory acceptance test (FactoryAcceptanceTest, FAT) a part of. This part of the operation and installation conditions have a clear measurement device is described in detail, for example, test bench at the supplier's. This section provides a typical test results framework standards for passenger ships, merchant ships, yachts, equipment on board high speed craft on. Due to the rotational direction of vibration of the structure contribute little noise, vibration involves only part of the translation direction, but does not specify equipment vibration or knot Structure noise limits.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. ISO 31-7 Quantities and units of acoustics (Quantitiesandunits-Part 7. Acoustics) ISO 1683 acoustic quantity level and the reference value (Acoustics-Preferredreferencequantitiesforacousticlevels) ISO 2041 Mechanical vibration, shock and condition monitoring of vocabulary (Mechanicalvibration, shockandconditionmonito- ring-Vocabulary) ISO 5348 Mechanical vibration and shock - Mechanical mounting of accelerometers (Mechanicalvibrationandshock-Mechanical mountingofaccelerometers) ISO /T R13298 marine technology in general terms (Shipsandmarinetechnology-Vocabularyofgeneral terms)

3 Terms and Definitions

In ISO 31-7, ISO 2041, ISO /T R13298 as defined in the following terms and definitions apply to this document. 3.1 Equipment equipment Capable of generating vibrations and to install any machine, system, subsystem, or component in the ship. Example 1 main propulsion unit. Diesel engine, gas turbine, the main reduction gears, propulsion motors; Example 2 mechanical ventilation as well as heating, ventilation and air conditioning (HVAC) systems. send exhaust fans, air conditioning units, water-cooled air conditioning units, fresh water pumps, etc; Example 3 auxiliary equipment. diesel engine or gas turbine generators, hydraulic equipment, electrical and so on. Note. does not include a pump mounted directly on the reduction gear means, such as diesel engine, mounted directly on the fan propulsion means motors, generators, motors, etc., as well as Any other auxiliary equipment on large units require pre-testing. 3.2 Elastic support resilientmount Flexible structure and to reduce vibration transmission means for. Note. where the rubber elastic support block having a particular shape of the coupling member at the point of use of the partition or similar elastomeric block, as well as the purpose of the support member portion ......

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