GB/T 15371-2023 Reciprocating internal combustion engines - Evaluation method of torsional vibration of crankshaft system
1 Scope
This document describes the calculation, measurement and evaluation methods of torsional vibration of shaft system (hereinafter referred to as "torsional vibration" unless otherwise specified) driven by reciprocating internal combustion engines.
This document applies to shaft system driven by reciprocating internal combustion engines (hereinafter referred to as "engines" unless otherwise specified) as defined in GB/T 6072.1.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 6072.1 Reciprocating internal combustion engines - Performance - Part 1: Declarations of power fuel and lubricating oil consumptions and test methods - Additional requirements for engines for general use
GB/T 6072.3 Reciprocating internal combustion engines - Performance - Part 3: Test measurements
GB/T 13436 Technical requirements for torsional vibration measuring instrument
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 6072.1 and GB/T 13436 and the following apply.
3.1
crankshaft system
assembly of crankshafts and rotatable parts on and associated with them
3.2
torsional vibration
oscillating angular deformation (torsion) of a rotating shaft system
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Calculation of torsional vibration
4.1 General
4.2 Calculation method
4.3 Calculation data
4.4 Calculation results
4.5 Calculation report
5 Measurement of torsional vibration
5.1 Measuring instruments
5.2 Working conditions
5.3 Angular displacement measurement
5.4 Recording
5.5 Measurement report
6 Evaluation of torsional vibration
6.1 General
6.2 Evaluation parameters
6.3 Evaluation
6.4 Torsional vibration barred speed range
