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来源:百度文库 编辑:高考问答 时间:2024/05/10 05:41:41
steel shipbuilding as a general rule,begins and ends with welding -Fig . 1. large seagoing vessels consist almost entirely of welded steel structures. They are predominantly sunjected to nonperriodic loads such as wind , waves, flows. impacts in heavy seas, and virations from drive systems and auxiliary machines .During an operation period of 20 years ,weled ships must bear about 10 load cycles . This associated load spectrum is distributed as linear, to which nonperiodic loads have to be added (Refs1-5).In addition, apart from the complex operating loads, climatic influences and the corrosive effect of seawater strongly impair the operational behavior of ships and other marine structures.

钢造船业通常,开始并且以焊接结束 -无花果树。 1.焊接钢结构,大的远洋货轮几乎完全组成。 他们主要是nonperriodic的sunjected 装例如风,波,流动。 装紧汹涌的海,从驱动系统和辅助机器和virations。在一个20 年的操作时间,weled 船必须忍受大约10个负荷循环。 这相关负荷范围分布为线,随着哪个非周期性负荷必须增加(Refs1-5)。 另外, 除复杂的运行负载外,气候影响和海水的腐蚀性的效应强烈削弱船和其他海上结构的操作的情况。

钢造船业通常是开始并以焊接结束-无花果树。