确定船舶电传动可靠性的运行与维修理论规定

A. F. Burkov, Van Kha Nguen
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引用次数: 0

摘要

所进行的研究结果证实,目前船舶机构最常见的驱动类型是电驱动。电力驱动是电能的主要接受者,包括船舶能源。一般来说,船上安装的电动机数量为数百台。根据先前开发的分类,建议将大多数船舶电力驱动(尽管种类繁多)常规地分为三大类,其操作模式和操作条件由其功能目的决定:接近典型模式S1和S6 -第一组;S2 -第二基团;S3, S4, S5, S7, S8,第三组。船舶电驱动的具体条件和操作模式与陆基电驱动有很大的不同,并由更高的气候和机械负荷决定,导致其可靠性下降,需要增加对电驱动及其组件和元件的维护和修理的关注。阐述了计算船舶电传动可靠性指标所需统计数据处理方法的基本原则。为了分析船舶电传动的运行和维护记录,采用了一种基于运行条件下统计信息收集和处理的方法,该方法最有效地考虑了所有运行因素对电传动可靠性的复杂影响,这些因素在测试过程中难以重现,并且不需要建立试验台和进行试验的成本。从故障数量来看,近似模式S2(绞车、绞盘等)和模式S3、S4、S5、S7、S8(起重绞车、起重机)的船舶电驱动的可靠性较差。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Theoretical provisions on operation and maintenance for determining the reliability of ship electric drives
The results of the performed studies have confirmed that at present the most common type of drive of ship mechanisms is an electric drive. Electric drives are the main recipients of electric energy, including the ship energy. The number of electric motors installed on ships is, as a rule, hundreds of units. It is proposed, based on the classification developed earlier, to conventionally refer the majority of ship electric drives, despite their wide variety, to three main groups, differing in operating modes and operating conditions determined by their functional purpose: close to typical modes S1 and S6 — the first group; S2 — the second group; S3, S4, S5, S7, S8, the third group. The specific conditions and operating modes of ship electric drives, which differ significantly from land-based ones and are determined by higher climatic and mechanical loads, lead to a decrease in their reliability, the need for increased attention to maintenance and repairs of electric drives, their components and elements. The basic principles of the approach to working with statistical data necessary for calculating the reliability indicators of marine electric drives are formulated. To analyze the past record of operation and maintenance of ship electric drives, a method based on the collection and processing of statistical information in operational conditions was used, which is the most effective, allowing to take into account the complex impact on the reliability of electric drives of all operational factors that are difficult to reproduce during testing, and does not require the cost of creating test benches and performing tests. Judging by the number of failures, the regulated ship electric drives of approximate mode S2 (windlasses, capstans, etc.) and modes S3, S4, S5, S7 and S8 (hoist winches and cranes) are less reliable in comparison with others.
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