GB/T 9239.12-2021 Active National standards

GB/T 9239.12-2021 Mechanical vibration—Rotor balancing—Part 12:Procedures and tolerances for rotors with flexible behaviour

Publish Date: 2021-08-20 Implement Date: 2022-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 9239.12-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods

ICS Name: Balancing and balancing machine

Publish Date: 2021-08-20

Implement Date: 2022-03-01

Pages: 33 pages

Scope

This part of GB/T 9239 lists various typical structural types of flexible rotors according to their rotor characteristics and balancing requirements, explains the steps of balancing, stipulates the evaluation method of the final balancing state, and establishes guidelines for balancing quality criteria.
This part can also be used as a basis for further research, for example, when it is necessary to determine the required balancing quality more precisely. If attention is paid to the specified manufacturing methods and imbalance quantity limits, the machine is expected to operate satisfactorily.
This part is not an acceptance specification for rotors, but it explains how to avoid major defects and unnecessary restrictive requirements.
The issues of structural resonance and its dynamic modification are not included in the scope of this part.
The methods and guidelines given in this part are derived from the experience of general industrial machines. For special equipment or special environments, they may not be directly applicable, and in some cases, it may be necessary to deviate from the provisions of this part.