ChinaAutoRegs｜GB/T 15371-2008 英文版翻译 曲轴轴系扭转振动的测量与评定方法
Torsional Vibration of Crankshaft System – Measurement and Evaluation Method

1 SCOPE

This standard specifies the calculation, measurement and evaluation methods of torsional vibrations in shaft systems of the sets driven by reciprocating piston crank mechanism.
This standard applies to the crankshaft systems driven by reciprocating piston crank mechanism with three or more cylinders in each line, while the crankshaft systems of the internal combustion engines and piston compressors with less than three cylinders may use this standard as a reference.

2 NORMATIVE REFERENCES

The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement based on this standard are encouraged to investigate the possibility of applying the latest editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 13436 Technical requirements for torsional vibration measuring instrument

3 TERMS AND DEFINITIONS

For the purpose of this document, the following terms and definitions apply.
3.1
Set
assembly of mechanisms including one or more machinery driven by reciprocating piston crank mechanism and the driven machinery
3.2
Shaft system
assembly of all the components of a set connected so that they can rotate
Note: When the torsional vibrations are calculated, the complete shaft system is considered.
3.3
Torsional vibration
oscillatory angular deformation (twist) of a rotating shaft system
3.4
Torsional vibration amplitude
maximum angular displacement measured in a section perpendicular to the axis of the shaft system between the angular position considered and a given arbitrary reference position
3.5
Relative amplitude
Ratio of the amplitude at a certain point in the shaft system to the amplitude at the reference point

1、现成译文，到款即发。
2、下单前可任取样页验证译文质量。
3、免费提供正规普通增值税数电发票。
4、请联系手机/微信: 13306496964/Email: standardtrans@foxmail.com 获取完整译文。
5、本英文译本为纯人工专业精翻版本，保证语法术语准确率和专业度！
6、专业源于专注|ChinaAutoRegs 始终专注于汽车标准翻译领域！
7、「中国汽车标准译文库」已收录上千个现行汽车国家标准和行业标准的英文版译本，涵盖传统燃油车、新能源汽车和摩托车标准化体系！独家打造千万级汽车专业术语库和记忆库。

1. The English Translation of this document (GB, GB/T, QC/T, CNCA, CQC, CAV, etc.) is readily available, and delivered immediately upon payment.
2. You may request for sample pages to your preference before placing an order.
3. Please contact standardtrans@foxmail.com for the complete PDF version in English.
4. Almost all of Chinese automotive/automobile standards, regulations and norms in effect have been included in our well-established database, providing one-stop, up-to-date, efficient and professional solution.