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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: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 11348.3-2011 | English | 214 |
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Mechanical vibration -- Evaluation of machine vibration by measurements on rotating shafts -- Part 3: Coupled industrial machines
| Valid |
GB/T 11348.3-2011
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| GB/T 11348.3-1999 | English | 359 |
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Mechanical vibration of non-reciprocating machines--Measurements on rotating shafts and evaluation criteria-- Part 3: Coupled industrial machines
| Obsolete |
GB/T 11348.3-1999
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PDF similar to GB/T 11348.3-2011
Basic data | Standard 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Count Estimation | 11,111 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-10-01 | | Older Standard (superseded by this standard) | GB/T 11348.3-1999 | | Quoted Standard | ISO 7919-1 | | Adopted Standard | ISO 7919-3-2009, IDT | | Regulation (derived from) | Announcement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
Foreword
GB/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.
Introduction
This 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 machines
1 Scope
This 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 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 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 Methods
The 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 criteria
Vibration values, guidelines and operational changes in the boundaries of the magnitude of vibration is given in Appendix A.
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