标准摘要
[中文适用范围]： DIN ISO 21940-12 处理具有柔性（弹性）行为的转子的程序和方法及公差。ISO 21940 的这一部分根据转子的平衡要求对转子进行分类，并规定了评估剩余不平衡度的程序。它说明了如何推导在平衡机上应用平衡准则。它包含具有柔性行为的转子典型配置的说明，描述平衡程序，并规定评估所达到不平衡状态的程序。本部分 ISO 21940 的目的并非作为转子验收规范。结构共振及其处理不属于本部分 ISO 21940 的应用范围。 [外文原描述]： ISO 21940-12:2016 presents typical configurations of rotors with flexible behaviour in accordance with their characteristics and balancing requirements, describes balancing procedures, specifies methods of assessment of the final state of balance, and establishes guidelines for balance quality criteria. ISO 21940-12:2016 can also serve as a basis for more involved investigations, e.g. when a more exact determination of the required balance quality is necessary. If due regard is paid to the specified methods of manufacture and balance tolerances, satisfactory running conditions can be expected. ISO 21940-12:2016 is not intended to serve as an acceptance specification for any rotor, but rather to give indications of how to avoid gross deficiencies and unnecessarily restrictive requirements. Structural resonances and modifications thereof lie outside the scope of this part of ISO 21940. The methods and criteria given are the result of experience with general industrial machinery. It is possible that they are not directly applicable to specialized equipment or to special circumstances. Therefore, in some cases, deviations from this part of ISO 21940 are possible.
英文名称Mechanical vibration — Rotor balancing — Part 12: Procedures and tolerances for rotors with flexible behaviour