GB/T 11348.3-2011 English PDFUS$214.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 11348.3-2011: Mechanical vibration -- Evaluation of machine vibration by measurements on rotating shafts -- Part 3: Coupled industrial machines Status: Valid GB/T 11348.3: Historical versions
Basic dataStandard ID: GB/T 11348.3-2011 (GB/T11348.3-2011)Description (Translated English): Mechanical vibration -- Evaluation of machine vibration by measurements on rotating shafts -- Part 3: Coupled industrial machines Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J04 Classification of International Standard: 17.160 Word Count Estimation: 11,111 Date of Issue: 2011-12-30 Date of Implementation: 2012-10-01 Older Standard (superseded by this standard): GB/T 11348.3-1999 Quoted Standard: ISO 7919-1 Adopted Standard: ISO 7919-3-2009, IDT Regulation (derived from): Announcement of Newly Approved National Standards No. 22 of 2011 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 the Coupled industrial machines radial shaft vibration measurement criteria, based on previous experience in the evaluation of proposed evaluation criteria can be used as a guide to the vibrational state of such machines. GB/T 11348 This part gives the right under normal operating conditions at or near Coupled industrial machines bearing shaft vibration measured at the evaluation criteria for the application of guidelines. These guidelines are based on steady-state operation of the vibration amplitude of any possible changes in two aspects raised. Specified value is not used exclusively as the sole basis for evaluation of vibration. Overall, the evaluation of the state machine vibration shaft vibration and to consider structural vibration associated aspects. This section applies to maximum continuous rated speed 1000r/min to 30000r/min range and has a sliding bearing Coupled industrial machines. The size and power of the machine is no restriction, including: steam turbine, turbine compressor, turbine, turbo blower, electric drives and gear shifting device coupled, rotor power pump (turbo pump). This section provides information about the pump and ISO 10816-7 provide complementary information. In certain cases, the evaluation of the pump shaft vibration should be considered on-site operating conditions, the acceptance test conditions and ISO 10816-7 gives the effect of the bearing clearance. This section does not apply to output power greater than 50MW Turbine Power Plant terrestrial installation (see ISO 7919-2), does not apply to output power greater than or equal to 1MW hydraulic turbine and pumping unit (see ISO 7919-5). GB/T 11348.3-2011: Mechanical vibration -- Evaluation of machine vibration by measurements on rotating shafts -- Part 3: Coupled industrial machines---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 Evaluation of machine vibration by measurements on rotating shafts Part 3. Coupled industrial machines ICS 17.160 J04 National Standards of People's Republic of China Replacing GB/T 11348.3-1999 Mechanical vibration measurement and evaluation of the machine on the rotating shaft Vibration - Part 3. Coupled industrial machines rotatingshafts-Part 3. Coupledindustrialmachines (ISO 7919-3.2009, IDT) Issued on. 2011-12-30 2012-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 11348 "mechanical vibration measurement and evaluation of the machine on the rotating shaft vibration" is divided into five parts. --- Part 1. General; --- Part 2. power greater than 50MW, rated operating speed of 1500r/min, 1800r/min, 3000r/min and 3600r/min land installed turbines and generators; --- Part 3. Coupled industrial machines; --- Part 4. Gas turbine sets with a sliding bearing; --- Part 5. Hydroelectric power plants and pump stations. This part of GB/T 11348 Part 3. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 11348.3-1999. Part of GB/T 11348.3-1999 The main difference between this and that. --- Standard name from "shafts of rotating machinery vibration measurement and evaluation criteria - Part 3. Coupled industrial machines" to "mechanical vibration Dynamic Measurement Evaluation of the machine on the rotating shaft vibration - Part 3. Coupled industrial machines "; --- Increased shaft vibration considerations during the evaluation of the pump (see Chapter 1, paragraph 3); --- Increased use of shaft vibration evaluation criteria precautions (see paragraph 2 A.1); --- Deleted the "baseline value" is defined (Chapter 3 of the 1999 edition); --- Altered the "evaluation criteria" content (see Chapter 4 and Appendix A,, Chapter 6, 1999 edition of Chapter 5). This section uses the translation method identical with ISO 7919-3.2009 "Mechanical vibration in rotating shaft vibration measurement and evaluation of the machine 3 Part I. Coupled industrial machine "(in English). Consistency correspondence between this part of international documents and normative references of our files are as follows. --- GB/T 11348.1-1999 shafts of rotating machinery vibration measurement and assessment - Part 1. General (idt ISO 7919- 1.1996). For ease of use, this section made the following editorial changes. --- References identical with ISO 10816-3 instead of GB/T 6075.3 "Mechanical vibration measurements on non-rotating parts Comments The price of the machine vibration - Part 3. 120r/min and 15000r/min between nominal power above 15kW rated speed In the field of industrial measuring machine "instead; --- Delete references the ISO 10816-1, this standard is not referenced in the standard. This part of the National mechanical vibration, shock and condition monitoring Standardization Technical Committee (SAC/TC53) and focal points. This section drafted by. Hangzhou Steam Turbine Co., Ltd., Zhengzhou Machinery Research Institute, Hubei Electric Power Research Institute. The main drafters of this section. Ding Xudong, Wang Tsui FOR THERMAL. This part of the standard replaces the previous editions are. --- GB/T 11348.3-1999.IntroductionThis section GB/T 11348 sets out guidelines for measuring industrial machine radial shaft vibration coupling assessment based on previous experience of the proposed Price evaluation criteria such as machine vibration state guidelines. General Principles of non-reciprocating machine shaft vibration measurement and evaluation has an overview of the ISO 7919-1. Mechanical vibration measurement and evaluation of the machine on the rotating shaft Vibration - Part 3. Coupled industrial machines1 ScopeThis section GB/T 11348 gives the shaft vibration of industrial machinery bearings located at or near the coupling measured under normal operating conditions Application Guide of the evaluation criteria. These guidelines are based on the amplitude of vibration and any changes that may arise under steady-state operation of the two aspects to mention Out. The only value in accordance with the provisions of the evaluation is not used exclusively as vibration. Overall, the evaluation of machine vibration to take into account the state of shaft vibration Dynamic and vibrational structure associated with two aspects. This section applies to a maximum continuous rated speed at 1000r/min to 30000r/min within the range of range of coupling of the sliding bearing Industrial machinery. Machine size and power is not limited, including. --- Turbine; --- Turbine compressor; --- Turbo; --- Turbo fan; --- Electric Drive and coupling gear change; --- Rotodynamic pump (turbo pump). This section provides information about the pump and ISO 10816-7 provide complementary information. In certain cases, the evaluation of the pump shaft vibration Conditions should be considered when the site operating conditions, the acceptance test when given in ISO 10816-7 and affect the bearing clearance. This section does not apply to the output power of more than 50MW of installed power plant land Turbine (see ISO 7919-2), also does not apply For output power greater than or equal to 1MW hydroelectric generating set, pump unit (see ISO 7919-5).2 Normative referencesThe 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 7919-1 Mechanical vibration of non-reciprocating machines - Measurement and Evaluation of the machine on the rotating shaft vibration - Part 1. General (Mechanicalvibrationofnon-reciprocatingmachines-Measurementsonrotatingshaftsandevaluation criteria-Part 1. Generalguidelines)3 Measurement MethodsThe following measuring methods and instruments should be used in the description in ISO 7919-1. Bearing for industrial machines typically measured with respect to the vibration, and therefore, unless otherwise indicated, refers to this part of the vibration displacement is always relative. Since the rotation speed of the industrial machine is made up of high, usually non-contact sensor is measured, and typically preferably used as the working speed 3000r/min and above the rotor member. In order to monitor overall vibration measurement system for frequency coverage should reach the highest work 2.5 times the speed. It should be noted that for fault diagnosis may be desirable to cover a wider range of frequencies.4 evaluation criteriaVibration values, guidelines and operational changes in the boundaries of the magnitude of vibration is given in Appendix A. ...... |
