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GB/T 41889-2022 English PDF

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GB/T 41889-2022: Ships and marine technology - Verification method for portable power measurement using a strain gauge
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Basic data

Standard ID GB/T 41889-2022 (GB/T41889-2022)
Description (Translated English) Ships and marine technology - Verification method for portable power measurement using a strain gauge
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard U44
Classification of International Standard 47.020.20
Word Count Estimation 18,136
Date of Issue 2022-10-14
Date of Implementation 2022-10-12
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 41889-2022: Ships and marine technology - Verification method for portable power measurement using a strain gauge


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Ships and marine technology -- Verification method forportable power measurement using a strain gauge ICS 47.020.20 CCSU44 National Standards of People's Republic of China Ship and Offshore Technology Strain Gauge Portable Validation method of dynamometer (ISO 23048.2018, IDT) Published on 2022-10-12 2022-10-12 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document is equivalent to ISO 23048.2018 "Verification method for portable dynamometers for ship and offshore technical strain gauges". Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed and managed by the National Marine Machinery Standardization Technical Committee (SAC/TC137). This document is drafted by. China Shipbuilding Industry Research Institute of Comprehensive Technology and Economics, China Shipbuilding Power Research Institute Co., Ltd., Jiangsu New Yangzi Shipbuilding Co., Ltd., Harbin Engineering University, Guangdong Ocean University, Jimei University, Zichai Machinery Co., Ltd., Hanzheng Testing Technology Co., Ltd., CLP Ke (Ningbo) Marine Electronics Research Institute Co., Ltd., Tianhai Fusion Defense Equipment Technology Co., Ltd., Dalian CRRC Diesel Engine Co., Ltd., Jiangmen Nanyang Ship Engineering Co., Ltd. and China Merchants Jinling Shipbuilding (Nanjing) Co., Ltd. The main drafters of this document. Sun Meng, Song Yali, Song Enzhe, Wang Yanrui, Zhang Hongfei, Liu Long, Wu Yingyou, Jiujiu, Yu Wanneng, Wu Defeng, Yang Shiping, Huang Jun, Lian Xuehai, Zhou Kewei, Xing Yu, Zhang Jian, Zhao Bobo, Jing Tao, Shu Chengjun, Zhang Wenfang, Zhang Weifeng, Zhang Qiying, Wu Jiongdong. Ship and Offshore Technology Strain Gauge Portable Validation method of dynamometer

1 Scope

This document specifies procedures for laboratory validation of the use of strain gauges as portable power measurement devices. Power measurement equipment validated in accordance with this document may be used on merchant ships.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. ISO 15016.2015 Ships and offshore technology Guide for the assessment of speed and power performance by analysis of speed trial data Note. GB/T 30007-2013 Ships and offshore technology Guidelines for the evaluation of speed and power performance by analyzing speed test data (ISO 15016.2002, IDT)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 strain gauge strainauge An instrument for measuring the strain of an object. NOTE. When the object is deformed, it will cause a change in resistance. This change in resistance is related to strain and is usually measured with a Wheatstone bridge, a quantity called scale coefficient. 3.2 A device designed to provide true torque to a torque measuring device. This torque is produced by a torque arm loaded with a known precise mass. 3.3 Equipment temporarily installed on a ship and operating during sea trials to measure the power delivered to the propeller by the engine and drive train without Is a stationary shaft power measuring device (if installed). 4-axis power meter verification equipment composition 4.1 General Shaft power meter verification equipment consists of torque arm, weight plate, torque arm shaft, shaft, torque sensor, mass and rotational speed [revolution per minute (r/min)]. The composition of the organism is shown in Figure 1.The actual torque is produced by a weight with a known exact mass attached to a known length attached to the shaft

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