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模块化技术作为标准化的重要手段,已在舰船设计与建造中起到越来越重要的作用.文章回顾了舰船模块化技术的发展状况,分析了和传统设计建造方法相比的优点,并对模块化实施过程中的关键环节作了分析. 相似文献
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目前国内造船业的转模工作进展很快,船舶设计与建造正与国外先进的模块化技术接轨.船舶采用模块化设计建造技术,势必引起管路设计安装的变革.论述了模块化设计建造技术下管路连接方式的变化及管路连接技术的研究进展,着重对卡箍式管接头、TiNi记忆合金管接头的密封原理、特点及模块化设计建造管路对接的优化准则进行论述. 相似文献
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模块化技术在舰船设计建造中的应用和研究 总被引:1,自引:0,他引:1
重点论述了舰船模块化技术的概念和发展趋势,对应用模块化技术开展舰船模块化设计与建造进行了介绍,分析了舰船模块化设计和建造中需重点关注的方面,提出了我国在该方面开展研究的设想. 相似文献
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目前国内造船业的转模工作进展很快,船舶设计与建造正与国外先进的模块化技术接轨。船舶采用模块化设计建造技术,势必引起管路设计安装的变革。论述了模块化设计建造技术下管路连接方式的变化及管路连接技术的研究进展,着重对卡箍式管接头、TiNi记忆合金管接头的密封原理、特点及模块化设计建造管路对接的优化准则进行论述。 相似文献
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单元、模块化设计造船是世界各大造船强国都在积极探索的新方法。本文介绍了造船单元、模块化设计的基本概念,并通过分析国内外单元、模块化造船的经验以及我国造船设计与建造的特点,探索了一条适合我国造船单元、模块化设计造船之路。 相似文献
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介绍了我国港口资源的整合现状,指出港口整合可以提升港口的形象和地位,也为区域经济和城市的发展注入强大的动力。最后指出在港口资源整合中要避免的几个问题。 相似文献
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广州集装箱码头的轮胎式场桥小车制动器使用10多年后,出现了许多问题,故进行了改造.分析了轮胎式集装箱龙门起重机小车制动器的主要故障现象,提出了改造方案,并加以实施. 相似文献
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本文对现有的选定球面轴承的三种工程方法进行了分析比较.引入了“合力系数”,并给出了合力方向上投影面积的精确解. 相似文献
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分析柴油机故障中常见的机体裂纹故障原因,认为由于设计缺陷和管理及操作不当,易造成船舶柴油机缸体上的裂纹多发生在气缸套凸肩处。如不及时处理这些裂纹和故障,就会造成缸套的裂纹直至出现缸套漏水等严重后果,针对NANTAIQUEEN轮柴油机对该类型故障的检修提出具体措施。 相似文献
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The hydrophysical and hydrochemical structure of the Sea of Azov, with developed bottom anoxia, was studied during the RV “Akvanavt” cruise from July 31 to August 03, 2001. The anoxic zone with a thickness from 0.5 to 4 m above the bottom was found in all deep regions of the Sea. Concentrations of hydrochemical parameters were similar to the pronounced anoxic conditions (about 90 mmol m− 3 of hydrogen sulfide, 17 mmol m− 3 of ammonia, 6 mmol m− 3 of phosphate, 7 mmol m− 3 of total manganese). The hydrophysical structure was characterized by the uniform distribution of temperature in the upper 6–7 m mixed layer (UML). Below this a thin (0.4–0.8 m) thermocline layer was observed, just above the anoxic waters. Formation of this phenomenon was connected with that summer weather conditions. Intensive rains led to increased influx of river waters in June. That resulted in large input of allochtonous organic matter (OM) and inorganic nutrients; the latter were consumed on the additional autochthonous organic matter production. In July the weather was characterized by a significant rise in the daily averaged air temperature and large oscillations of temperature during the day. In this period a wind of constant direction was absent, but wind bursts were observed. The completed analyses showed that the formation of such a structure could be connected with the following factors: (i) positive growth trends of the daily averaged temperature and the daily oscillations of temperature, (ii) presence of wind bursts. The joint action of these factors resulted in the formation of the UML. The amplitude of wind bursts determined the depth of UML, and the value of trend determined the value of the temperature change in the thermocline. An initial presence of bottom halocline (caused by the Black Sea water influx to the bottom of the Sea of Azov) prevented the heating of the bottom layer and therefore led to an increase of vertical gradient of temperature in the thermocline. The spatial distribution of the turbulent exchange coefficient confirmed the existence of a “stagnation” area located above the anoxia zone, which is also, apparently, the reason for its occurrence. 相似文献
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