GB/T 36580-2018 English PDF

US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 36580-2018: Test method of model propeller for cavitation observation and pressure fluctuation measurement
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 36580-2018	279	Add to Cart	3 days	Test method of model propeller for cavitation observation and pressure fluctuation measurement	Valid

Similar standards

JT/T 258   GB/T 37348   GB/T 37335   GB/T 40073   GB/T 40072   

Basic data

Standard ID: GB/T 36580-2018 (GB/T36580-2018)
Description (Translated English): Test method of model propeller for cavitation observation and pressure fluctuation measurement
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U11
Classification of International Standard: 47.020.20
Word Count Estimation: 14,170
Date of Issue: 2018-09-17
Date of Implementation: 2019-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 36580-2018: Test method of model propeller for cavitation observation and pressure fluctuation measurement

---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.
Test method of model propeller for cavitation observation and pressure fluctuation measurement ICS 47.020.20 U11 National Standards of People's Republic of China Ship propeller bubble pulsation pressure model test method Published on.2018-09-17 Implementation of.2019-04-01 State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Marine Ship Standardization Technical Committee (SAC/TC12). This standard was drafted. China Shipbuilding Industry Corporation 702 Research Institute. The main drafters of this standard. Huang Hongbo, Shi Xiaoyong, Xue Qingyu, Feng Guang. Ship propeller bubble pulsation pressure model test method

1 Scope

This standard specifies the similar parameters of the ship propeller cavitation and its induced pulsating pressure model test on the hull surface. Number, flow simulation and measurement, cavitation observation and pulsation pressure measurement procedures, as well as requirements for test facilities and test instruments. This standard is applicable to the bubble pulsation pressure model test of various types of surface ship propellers in variable pressure circulating water tanks or vacuolar water tanks. It can also be used as a reference for the propeller model when performing a bubble pulsation pressure test in a vacuum towed pool.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Cavitation cavitation A phase change that occurs inside a liquid or at a liquid-solid interface under hydrodynamic forces. In the field of ships, usually referred to as low A vapor phase transition phenomenon produced by a relatively moving solid surface in a liquid under saturated steam pressure conditions. 2.2 Pulsating pressure pressurefluctuation Unsteady pressure induced on the surface of the hull above the propeller when the propeller is operating behind the ship. 2.3 Pulsating pressure coefficient coefficientofpressurefluctuation The value of the pulsating pressure amplitude is dimensionless by the test medium density, the propeller speed, and the propeller diameter. 2.4 Face bubble margin facecavitationmargin The difference between the propeller load factor and the load factor when the ship is in the specified operating conditions is divided by the specified operating condition. The percentage of the propeller load factor.

3 symbol

The symbols in Table 1 apply to this document. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 36580-2018_English be delivered?

Answer: Upon your order, we will start to translate GB/T 36580-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 36580-2018_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 36580-2018_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.