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GB/T 23891.1-2009: Plain bearings -- Hydrodynamic plain thrust pad bearings under steady-state conditions -- Part 1: Calculation of thrust pad bearings
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 23891.1-2009 | English | 474 |
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Plain bearings -- Hydrodynamic plain thrust pad bearings under steady-state conditions -- Part 1: Calculation of thrust pad bearings
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GB/T 23891.1-2009
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Basic data | Standard ID | GB/T 23891.1-2009 (GB/T23891.1-2009) | | Description (Translated English) | Plain bearings -- Hydrodynamic plain thrust pad bearings under steady-state conditions -- Part 1: Calculation of thrust pad bearings | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J12 | | Classification of International Standard | 21.100.10 | | Word Count Estimation | 24,269 | | Date of Issue | 2009-05-26 | | Date of Implementation | 2009-12-01 | | Quoted Standard | GB/T 3141-1994; GB/T 23891.2-2009; GB/T 23891.3 | | Adopted Standard | ISO 12131-1-2001, IDT | | Regulation (derived from) | PRC National Standard Approval Announcement 2009 No.7 (Total No.147) | | 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 design and calculation method block thrust bearing hydrodynamic watts. Designed for reliable operation of the fluid dynamic pressure pad thrust bearing. | GB/T 23891.1-2009: Plain bearings -- Hydrodynamic plain thrust pad bearings under steady-state conditions -- Part 1: Calculation of thrust pad bearings
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Plain bearings Hydrodynamic plain thrust pad bearings under steady-state conditions Part 1. Calculation of thrust pad bearings
ICS 21.100.10
J12
National Standards of People's Republic of China
GB/T 23891.1-2009/ISO 12131-1.2001
Bearing
Under steady-state conditions of hydrodynamic thrust bearing pad
Part 1. pad thrust bearing calculation
(ISO 12131-1.2001, IDT)
Posted 2009-05-26
2009-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 23891 "under steady-state conditions bearing hydrodynamic pad thrust bearing" consists of the following three parts.
--- Part 1. Calculation of thrust pad bearings;
--- Part 2. Calculation function pad thrust bearing;
--- Part 3. Calculation of thrust pad bearing the allowable value.
This part of GB/T 23891 Part 1.
This section identical with ISO 12131-1.2001 "Under steady-state conditions bearing hydrodynamic thrust pad bearings - Part 1. W
Calculated thrust bearing block stop. "
This section is equivalent translation ISO 12131-1.2001.
For ease of use, this section made the following editorial changes.
--- "This International Standard" be replaced by "this section";
"." --- With a decimal point instead of a comma as the decimal point, "";
--- Delete international standards foreword.
Appendix A of this part is a normative appendix.
This part is proposed by China Machinery Industry Federation.
Bearing this in part by the National Standardization Technical Committee (SAC/TC236) centralized.
This section is responsible for drafting unit. Productivity Promotion Center in the machine.
Participated in the drafting of this section. Xi'an Jiaotong University, Zhejiang Bearing Co., Ltd. Shanghai Branch, Shanghai, Zhejiang send Bearing Co., Ltd.,
Zhejiang Oriental Bearing Co., Ltd., Zhejiang SF Oilless Bearing Co., Ltd., Zhejiang Changsheng Bearing Co., Ltd..
This part of the National Standardization Technical Committee Secretariat slide bearing responsible for the interpretation.
GB/T 23891.1-2009/ISO 12131-1.2001
Bearing
Under steady-state conditions of hydrodynamic thrust bearing pad
Part 1. pad thrust bearing calculation
1 Scope
This section GB/T 23891 gives the ring and thrust bearing surface is completely separate from the fluid lubricant film hydrodynamic lubrication tile
The calculation method of the thrust bearing, designed for reliable operation of the fluid dynamic pressure pad thrust bearing.
Suitable single tile width to length ratio B/L is the range of 0.5 to 2.
If the value is known when other types of oil wedge Reynolds differential equations, calculation methods GB/T 23891 is also described in this section
It can be used for other types of gaps.
This calculation method is suitable for the design and optimization of these occasions with pad thrust bearing. blowers, gears, pumps, turbines, electric motors,
Compressor thrust bearing and machine tools. But limited to the steady-state case, that all load and angular velocity of the rotating body in continuous operation for constant
Value. This section does not apply to dynamic conditions.
2 Normative references
The following documents contain provisions which, through reference GB/T 23891 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 3141-1994 industrial liquid lubricants ISO viscosity classification (eqvISO 3448.1992)
GB/T 23891.2-2009 Plain bearings under steady-state conditions of hydrodynamic thrust pad bearings - Part 2. pad thrust bearing
Calculation functions (ISO 12131-2.2001, IDT)
GB/T 23891.3 under steady-state conditions of sliding bearings hydrodynamic thrust pad bearings - Part 3. pad thrust bearing calculation
Allowable Value (GB/T 23891.3-2009, ISO 12131-3.2001, IDT)
3 basic principles, assumptions and preconditions
Usually calculate the actual boundary conditions regardless of the pressure generated by Renault differential equations finite width of the sliding surface to the numerical solution
Implementation, see equation (1).
x0
References [1] is a differential equation derivation formula Renault, [2] is a numerical Reynolds differential equation.
Formula (1) solving, use the following idealized assumptions and premises, the reliability of these assumptions have been obtained in the test and engineering practice
To fully verify (see [3]).
a) Lubricant Newtonian fluid;
b) the lubricant flow is laminar;
c) lubricants completely adhered to the sliding surface;
d) the lubricant is incompressible;
e) lubricating gap filled with lubricating oil;
GB/T 23891.1-2009/ISO 12131-1.2001
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