宁波博艺美术:哪位高手帮我翻译一下!

来源:百度文库 编辑:查人人中国名人网 时间:2024/04/14 16:34:08
Vibrating loads lead to stress concentrations in welded joints of steel structures with complex geometries. Generally, the quality of welded joints is crucial for the life cycles of marine structures, because incorrect welding in their bearing systems leads to fatigue cracks and damage. Hence, sufficient quality for the welded joints in these structures which are exposed to high complex loads , is required (Refs .1-8). Figure 2 represents the welded joint shapes of thick sheet metals with and without joint preparation that are most frequently used in both shipbuilding and other steel structures. The weld joints can easily be made with conventional methods such as gas metal arc welding (GMAW).In shipbuilding, the GTAW process is used for welding highly alloyed steel and aluminum, especially in catamaran and yacht building. However, thick sheet metal welding joint preparation can only be manufactured with high-intensity arc welding methods such as electron beam and laser beam welding, as exhibited in Fig .2 in Fields III/1-3.
Generally, plate thicknesses, welding methods to be applied , and dynamic loads affecting marine structures determine the selection of the weld shapes. In addition, the choice of the weld shape strongly affects the welding process and the manufacturing costs. Minimization of joint volumes, renouncement of joint preparation , and omission of pre-and post treatment of welded joints reduce manufacturing costs of marine vessels and structures. These topics have been the subject of investigations around the world . Efficient welding power sources, new welding methods, and new welding techniques are also being tested . Furthermore, fatigue strength of welded joints subjected to operating loads has been intensively examined (Refs.1-12).

负荷导致压力集中在复杂的结构,钢焊接接头的几何作用. 一般来说,接头焊接质量的关键是海洋生命周期结构,由于不正确的焊接系统,导致疲劳裂纹的影响和破坏. 因此,提供优质的焊接接头,在这些机构都面临着复杂的高负荷,必须(refs.1-8). 二是联合型人物造型,并在联合金属厚表编制,最常用的两种结构钢造船等. Weld关节的传统方法,很容易与金属等气体弧焊接(GMAW).
在造船、GTAW焊接过程中用于钢铁、铝钛合金高,尤其是双体帆船和建设. 不过,联合编制焊接薄板厚只能制造高强度弧焊接方法,如电子束和激光束焊接,展出地点在2580人Iii/1-3. 一般来说,盘厚度、焊接方法应用于、动态负荷结构确定影响海洋Weld形状的选择. 此外,选择Weld形成强烈的影响,制造过程中焊接费用. 联合最小量,放弃联合编制,未事先和事后处理焊接接头降低生产成本和海洋船舶结构. 这些议题都经过调查,全世界. 高效焊接电源、焊接新方法、新技术也正在试验焊接. 此外,焊接接头疲劳强度的业务量一直受到密切审查(refs.1-12).

负荷导致压力集中在复杂的结构,钢焊接接头的几何作用. 一般来说,接头焊接质量的关键是海洋生命周期结构,由于不正确的焊接系统,导致疲劳裂纹的影响和破坏. 因此,提供优质的焊接接头,在这些机构都面临着复杂的高负荷,必须(refs.1-8). 二是联合型人物造型,并在联合金属厚表编制,最常用的两种结构钢造船等. Weld关节的传统方法,很容易与金属等气体弧焊接(GMAW).
在造船、GTAW焊接过程中用于钢铁、铝钛合金高,尤其是双体帆船和建设. 不过,联合编制焊接薄板厚只能制造高强度弧焊接方法,如电子束和激光束焊接,展出地点在2580人Iii/1-3. 一般来说,盘厚度、焊接方法应用于、动态负荷结构确定影响海洋Weld形状的选择. 此外,选择Weld形成强烈的影响,制造过程中焊接费用. 联合最小量,放弃联合编制,未事先和事后处理焊接接头降低生产成本和海洋船舶结构. 这些议题都经过调查,全世界. 高效焊接电源、焊接新方法、新技术也正在试验焊接. 此外,焊接接头疲劳强度的业务量一直受到密切审查(refs.1-12).