GB/T 23891.2-2009 English PDF

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GB/T 23891.2-2009: Plain bearings -- Hydrodynamic plain thrust pad bearings under steady-state conditions -- Part 2: Functions for the calculation of thrust pad bearings
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23891.2-2009	234	Add to Cart	3 days	Plain bearings -- Hydrodynamic plain thrust pad bearings under steady-state conditions -- Part 2: Functions for the calculation of thrust pad bearings	Valid

Similar standards

GB/T 18329.1   GB/T 35087   GB/T 35088   GB/T 23892.1   GB/T 23892.2   GB/T 23891.3   

Basic data

Standard ID: GB/T 23891.2-2009 (GB/T23891.2-2009)
Description (Translated English): Plain bearings -- Hydrodynamic plain thrust pad bearings under steady-state conditions -- Part 2: Functions for the 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: 12,156
Date of Issue: 2009-05-26
Date of Implementation: 2009-12-01
Quoted Standard: GB/T 23891.1
Adopted Standard: ISO 12131-2-2001, 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 calculation of thrust pad relationship with the function and the dynamic viscosity and temperature of the lubricating oil film between the bearing.

GB/T 23891.2-2009: Plain bearings -- Hydrodynamic plain thrust pad bearings under steady-state conditions -- Part 2: Functions for the calculation of thrust pad bearings

---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.
Plain bearings Hydrodynamic plain thrust pad bearings under steady-state conditions Part 2. Functions for the calculation of thrust pad bearings ICS 21.100.10 J12 National Standards of People's Republic of China GB/T 23891.2-2009/ISO 12131-2.2001 Bearing Under steady-state conditions of hydrodynamic thrust bearing pad Part 2. Calculation of thrust pad bearings function (ISO 12131-2.2001, 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 2. This section identical with ISO 12131-2.2001 "Under steady-state conditions bearing hydrodynamic thrust pad bearings - Part 2. W Calculation function "thrust bearing block stop. This section is equivalent translation ISO 12131-2.2001. 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. 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 23891.2-2009/ISO 12131-2.2001

Introduction

This section GB/T 23891 of the calculating GB/T 23891.1 specified in lubricating pad thrust bearing necessary formulas, false Let pad thrust bearing operating in hydrodynamic condition, and in a completely lubrication conditions. These formulas are based on GB/T 23891.1 Identified assumptions and boundary conditions. Necessary for the calculation of the value given by graphs, tables and equations to determine the formula with the literature [2] Approximate numerical solution of the equation of the curve consistent. Explanation and example calculations related terms are given in GB/T 23891.1. GB/T 23891.2-2009/ISO 12131-2.2001 Bearing Under steady-state conditions of hydrodynamic thrust bearing pad Part 2. Calculation of thrust pad bearings function

1 Scope

This part of the GB/T 23891 specifies the calculation of pad thrust bearing anchoring function, and dynamic viscosity and temperature of the lubricating oil film between the relationship.

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 23891.1 sliding bearings under steady-state conditions of hydrodynamic thrust pad bearings - Part 1. pad thrust bearing count Operators (GB/T 23891.1-2009, ISO 12131-1.2001, IDT)

3 pad thrust bearing calculation function

/ Cwed L × 1 + α × B () L 2 × α = 10 2 × Cwed + C () wed [] C () wed [] 12 × 1 + 2 × A = 1.2057-0.24344 × B () L + 0.12625 × B () L -0.021554 × B () L B = -0.25634 + 0.36114 × B () L -0.19958 × B () L + 0.038633 × B () L C = -0.010765 + 0.0093501 × B () L -0.0027527 × B () L + 0.00018446 × B () L GB/T 23891.2-2009/ISO 12131-2.2001 ......

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