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Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email. GBZ41305.7-2023: Environmental conditions - Vibration and shock of electrotechnical equipment - Part 7: Transportation by rotary wing aircraft Status: Valid
Basic dataStandard ID: GB/Z 41305.7-2023 (GB/Z41305.7-2023)Description (Translated English): Environmental conditions - Vibration and shock of electrotechnical equipment - Part 7: Transportation by rotary wing aircraft Sector / Industry: National Standard Classification of Chinese Standard: A21 Classification of International Standard: 19.040 Word Count Estimation: 50,593 Date of Issue: 2023-12-28 Date of Implementation: 2024-07-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GBZ41305.7-2023: Environmental conditions - Vibration and shock of electrotechnical equipment - Part 7: Transportation by rotary wing aircraft---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. GB /Z 41305:7-2023: Environmental conditions Vibration and shock of electronic equipment Part 7: Transport by rotorcraft ICS 19:040 CCSA21 National Standardization Guiding Technical Documents of the People's Republic of China Environmental Conditions Electronic Equipment Vibration and Shock Part 7: Transportation by Rotorcraft (IEC TR62131-7:2020,IDT) Published on 2023-12-28 2024-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration Committee Table of contentsPreface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Data sources and quality 1 4:1 Vibration of Boeing CH-47 helicopter 1 4:2 Boeing CH-47 helicopter drops suspended cargo 3 4:3 Supplementary data 3 5 Internal comparison of data sources 5 5:1 General requirements 5 5:2 Vibration of Boeing CH-47 helicopter 5 5:3 Boeing CH-47 helicopter drops suspended cargo 6 5:4 Supplementary data 6 6 Comparison between data sources 6 7 Environment description 6 7:1 Physical sources of mechanical vibration 6 7:2 Environmental characteristics and severity 8 7:3 Derived test severity 9 8 Comparison with IEC 60721 (all parts) [5] 10 9 suggestions 11 Reference 41 Figure 1 Typical vibration spectrum of Boeing CH-47 helicopter during straight flight at a speed of 160kn[14] 12 Figure 2 Typical vibration spectrum of Boeing CH-47 helicopter during hover[14] 13 Figure 3 Typical vibration spectrum of Boeing CH-47 helicopter during transition to hover[14] 13 Figure 4 Typical vibration spectrum of Boeing CH-47 helicopter during rotation[14] 14 Figure 5 Comparison of total RMS vibration of Boeing CH-47 helicopter in different flight states[14] 15 Figure 6 Comparison of vibration RMS severity of Boeing CH-47 helicopter under different flight conditions of rotor shaft frequency (r) [14] 16 Figure 7 Comparison of vibration RMS severity at different flight conditions of Boeing CH-47 helicopter rotor blades at passing frequency (nr) [14] 17 Figure 8 Vibration RMS severity of the second harmonic (2nr) of the blade passing frequency of the Boeing CH-47 helicopter in different flight states Comparison[14] 18 Figure 9 Vibration RMS severity of the third-order harmonic (3nr) of the blade passing frequency of the Boeing CH-47 helicopter in different flight states Comparison[14] 19 Figure 10 Vibration RMS severity of the fourth harmonic (4nr) of the blade passing frequency of the Boeing CH-47 helicopter in different flight states Comparison[14] 20 Figure 11 Comparison of RMS severity of cargo hold floor vibration during Boeing CH-47 helicopter hover[14] 21 Figure 12 Comparison of RMS severity of vibrations on the cargo floor during Boeing CH-47 helicopter transition to hover[14] 21 Figure 13 Comparison of RMS severity of vibrations on the cargo floor of a Boeing CH-47 helicopter during transition to autorotation[14] 22 Figure 14 Comparison of RMS severity of vibrations on the cargo hold floor during Boeing CH-47 helicopter straight flight [14] 22 Figure 15 Impact severity of Boeing CH-47 helicopter when lowering ISO container[15] 23 Figure 16 Relative amplitude of Bobcat helicopter changes with airspeed[16] 23 Figure 17 Relative amplitude of Sea King helicopter changes with airspeed[16] 24 Figure 18 Relative amplitude of Chinook helicopter changes with airspeed[16] 24 Figure 19 Relative amplitude changes between the fuselage of the Bobcat helicopter [16] 25 Figure 20 Statistical comparison of fleet vibration[18] 26 Figure 21 Vibration measurement values of the Super Hornet helicopter in the X-axis direction[19] 27 Figure 22 Vibration measurement values of the Super Hornet helicopter in the Y-axis direction[19] 27 Figure 23 Vibration measurement values of the Super Hornet helicopter in the Z-axis direction[19] 28 Figure 24 Vibration test severity of Boeing CH-47 helicopter derived based on MilStd810G[22]28 Figure 25 Boeing CH-47 helicopter derived based on STANAG4370AECTP400 method 401 Annex D [23] Vibration test severity for transportation equipment29 Figure 26 Equipment transported as a suspended load derived based on STANAG4370AECTP400 method 401 Annex D [23] Vibration test severity of equipment 29 Figure 27 Specific vibration test severity 30 of Chinook helicopter in DEFSTAN00-35[18] Figure 28 Specific vibration test severity 30 of Merlin helicopter in DEFSTAN00-35[18] Figure 29 Specific vibration test severity of Lynx/Wildcat helicopter in DEFSTAN00-35[18] 31 Figure 30 Vibration test severity of suspended load in DEFSTAN00-35[18] 31 Figure 31 Specific vibration test severity of Boeing CH-47 helicopter in RTCA/DO-160[24] and EUROCAE/ED-14[25]32 Figure 32 IEC 60721-3-2:2018[6] Steady state random vibration severity 32 Figure 33 IEC TR60721-4-2:2001[7] Steady state random vibration severity 33 Figure 34 IEC 60721-3-2:2018[6] Steady-state sinusoidal vibration severity 33 Figure 35 IEC TR60721-4-2:2001[7] Steady state sinusoidal vibration severity 34 Figure 36 IEC 60721-3-2:2018[6] Impact severity 34 Figure 37 IEC TR60721-4-2:2001[7] impact severity used in IEC 60068-2-27:2008[2] test procedure 35 Figure 38 IEC TR60721-4-2:2001[7] impact severity used in IEC 60068-2-27[2] test procedure 35 Figure 39 Comparison of Boeing CH-47 helicopter vibration[14] and IEC 60721-3-2:2018[6]36 Figure 40 Super Hornet helicopter X-axis vibration[19] compared with IEC 60721-3-2:2018[6]36 Figure 41 Super Hornet helicopter Y-axis vibration[19] compared with IEC 60721-3-2:2018[6]37 Figure 42 Super Hornet helicopter Z-axis vibration[19] compared with IEC 60721-3-2:2018[6]37 Figure 43 Comparison between MilStd810G vibration test severity [22] and IEC 60721-3-2:2018 [6] 38 Figure 44 AECTP400 vibration test severity[23] compared with IEC 60721-3-2:2018[6]38 Figure 45 DEFSTAN00-35 vibration test severity[18] compared with IEC 60721-3-2:2018[6]39 Figure 46 Comparison between DO160 vibration test severity[24] and IEC 60721-3-2:2018[6]39 Figure 47 Comparison between suspension load vibration test severity [18], [23] and IEC 60721-3-2:2018 [6] 40 Figure 48 Comparison of impact severity of Boeing CH-47 helicopter when lowering load[15] and IEC 60721-3-2:2018[6]40 Table 1 Typical structural dynamics excitation frequencies and their excitation sources 7ForewordThis document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting: This document is Part 7 of GB /Z 41305 "Vibration and Shock of Electronic Equipment under Environmental Conditions": GB /Z 41305 has been released with Lower part: ---Part 1: Validation process of kinetic data; ---Part 2: Storage and handling of equipment; ---Part 7: Transport by rotorcraft: This document is equivalent to IEC TR62131-7:2020 "Environmental conditions vibration and shock of electronic equipment Part 7: Flying with rotors "Aircraft Transportation", the document type was adjusted from IEC 's technical report to my country's national standardization guiding technical document: Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents: This document is proposed and coordinated by the National Standardization Technical Committee on Environmental Conditions and Environmental Testing of Electrical and Electronic Products (SAC/TC8): This document was drafted by: The Fifth Research Institute of Electronics of the Ministry of Industry and Information Technology, Wuhu Saibao Robot Industry Technology Research Institute Co:, Ltd:, Guangzhou Zhou Wusuo Environmental Instrument Co:, Ltd:, Wuhu Saibao Information Industry Technology Research Institute Co:, Ltd:, Beijing University of Aeronautics and Astronautics, Beijing Intensity Environment Research Institute, China Institute of Aviation Technology, Institute of Automation, Chinese Academy of Sciences, Nanjing Institute of Simulation Technology: The main drafters of this document: Yang Jianfeng, Cai Mingqian, Wu Helong, Wang Kaiwei, Xie He, Sun Lijun, Wang Yuanhang, Liu Wenwei, Fang Zhibin, Wu Sa, Wei Bingfeng, Sun Jianyong, Chen Bochen, Ji Chunyang, Guo Guangkuo, Zheng Kun, Yang Huabin, Tang Junjun:IntroductionGB /Z 41305 "Vibration and Shock of Electronic Equipment under Environmental Conditions" first establishes the three stages and accuracy of the dynamic data verification process: principles, and then applied to the review of dynamic data under conditions such as fixed-wing jet aircraft, rail vehicles, road vehicles, handling, etc:, and form an environment conditions and compared with data in IEC 60721 (all parts): This series of standards is planned to consist of 8 parts: ---Part 1: Validation process of kinetic data: The purpose is to establish the three stages of the kinetic data validation process and their criteria: ---Part 2: Storage and handling of equipment: The purpose is to review the kinetic data available during the handling of electronic equipment and formulate Description of the environment and comparison with data in IEC 60721 (all parts): ---Part 3: Transportation using rail vehicles: The purpose is to review the dynamics of electronic equipment available under rail vehicle transport conditions The data form an environmental description and are compared with the data in IEC 60721 (all parts): ---Part 4: Transportation by road vehicles: The purpose is to review the dynamics of electronic equipment available under road vehicle transport conditions The data form an environmental description and are compared with the data in IEC 60721 (all parts): ---Part 5: Transportation by fixed-wing jet aircraft: The purpose is to review the transport conditions available on fixed-wing jet aircraft The electronic device dynamics data are used to form an environmental description and compared with the data in IEC 60721 (all parts): ---Part 6: Transport by propeller aircraft: The purpose is to review the electronic equipment available under propeller-driven aircraft transport conditions: Prepare kinetic data to form an environmental description and compare it with the data in IEC 60721 (all parts): ---Part 7: Transport by rotorcraft: The purpose is to review the dynamics of electronic equipment available under rotorcraft transport conditions The data form an environmental description and are compared with the data in IEC 60721 (all parts): ---Part 8: Transportation by ship: The purpose is to review the dynamic data of electronic equipment obtained under ship transportation conditions to form a loop Environmental description and comparison with data in IEC 60721 (all parts): Environmental Conditions Electronic Equipment Vibration and Shock Part 7: Transportation by Rotorcraft1 ScopeThis document evaluates the dynamic data obtained during the transport of electronic equipment by a rotary-wing aircraft (helicopter): The aim is to draw conclusions from all available data: An environment description is generated and compared with IEC 60721 (all parts) [5] 1): For each identified data source, data quality has been assessed and checked for self-consistency: Data quality checks and various Data source classification is implemented in accordance with IEC TR62131-1 [9]: This document primarily sets out data extracted from a number of different sources, with a degree of confidence in the quality and validity of the data: The document also gives some data whose quality and validity cannot be verified in practice: These data are given to verify data from other sources: The use of such data in the following chapters is clearly marked: This document covers data from a range of data collection efforts, the quantity and quality of which vary with the range of conditions covered: Hua Da: Not all validated data are available in electronic form, and for comparison purposes many of the raw (non-electronic) data are presented in this document: Perform manual digitization:2 Normative reference documentsThis document has no normative references:3 Terms and definitionsThere are no terms or definitions to be defined in this document:4 Data sources and quality4:1 Vibration of Boeing CH-47 helicopter A large amount of vibration data measurement work for the Boeing CH-472 helicopter has been completed: References [14] and [15] give typical examples: type measurement results: Much measurement work has focused on the vibration response of airborne cargo, passengers and crew: However, the reference The measurements in Reference [14] and Reference [15] were developed specifically to characterize the vibration response within the payload area of the cargo bay floor of a rotorcraft: 1) Numbers in square brackets are references: 2) Boeing CH-47 helicopter is the trade name of a product of Boeing Company: This information is provided for the convenience of users of this document and does not constitute any endorsement by IEC of this product: Product recognition: The Boeing CH-47 helicopter was first put into use in 1961: It is a dual-rotor, dual-engine heavy-duty helicopter: Although it is as Designed for military use, but many commercial models exist: These models are widely used for transporting large or heavy-duty equipment and for moving cargo Delivery to places that are difficult to reach by other means of transportation: There are many different models of Boeing CH-47 helicopters, including Chinook, Boeing 234, Boeing Type 414, etc: Of course, the appearance of different names indicates modifications based on the original ones: Specific rotorcraft used in survey work Most of the aircraft are improved models of Boeing CH-47 helicopters: The two rotors of these aircraft are composed of three blades, and the rotor speed is ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GBZ41305.7-2023_English be delivered?Answer: Upon your order, we will start to translate GBZ41305.7-2023_English as soon as possible, and keep you informed 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