ChinaAutoRegs\uff5cGB\/T 15371-2008 \u82f1\u6587\u7248\u7ffb\u8bd1 \u66f2\u8f74\u8f74\u7cfb\u626d\u8f6c\u632f\u52a8\u7684\u6d4b\u91cf\u4e0e\u8bc4\u5b9a\u65b9\u6cd5
\nTorsional Vibration of Crankshaft System – Measurement and Evaluation Method<\/p>\n
\n1 SCOPE<\/p>\n
This standard specifies the calculation, measurement and evaluation methods of torsional vibrations in shaft systems of the sets driven by reciprocating piston crank mechanism.
\nThis 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.<\/p>\n
2 NORMATIVE REFERENCES<\/p>\n
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.
\nGB\/T 13436 Technical requirements for torsional vibration measuring instrument<\/p>\n
3 TERMS AND DEFINITIONS<\/p>\n
For the purpose of this document, the following terms and definitions apply.
\n3.1
\nSet
\nassembly of mechanisms including one or more machinery driven by reciprocating piston crank mechanism and the driven machinery
\n3.2
\nShaft system
\nassembly of all the components of a set connected so that they can rotate
\nNote: When the torsional vibrations are calculated, the complete shaft system is considered.
\n3.3
\nTorsional vibration
\noscillatory angular deformation (twist) of a rotating shaft system
\n3.4
\nTorsional vibration amplitude
\nmaximum 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
\n3.5
\nRelative amplitude
\nRatio of the amplitude at a certain point in the shaft system to the amplitude at the reference point<\/p>\n
<\/p>\n
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