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移动式起重机设计技术,至今已经过了下面四个阶段。第一阶段:摇篮期 1940年以前——是利用设计公式进行古典性设计第二阶段:成长期 1940年～1960年——是以经验技术为基础进行实验性设计第三阶段:发展期 1960年～1980年——是以静态分析为基础进行理论性设计建四阶段:成熟期 1980年以来——是以动态分析为基础进行理论设计第一阶段是第二次世界大战前的摇篮期。德国等欧洲国家把移动式起重机作为设备起重机的应用,美国则作为建设机械的一个分支,按着复合的古典设计公式进行设计和生产。第二阶段是指战争期间和战后,主要是在美国进入了扩大建设机械产量的时期。是通过样机或
Mobile crane design technology, has passed the following four stages. The first stage: the cradle of 1940 - is the use of design formulas for the classical design The second stage: the growth period 1940 to 1960 - is based on empirical technology experimental design The third stage: the development of 1960 ~ 1980 - is based on the static analysis of theoretical design to build four stages: the maturity of 1980 - is based on dynamic analysis of theoretical design The first stage is the cradle before the Second World War. Germany and other European countries to use mobile cranes as equipment crane applications, the United States as a branch of construction machinery, according to the composite classical design formula for the design and production. The second phase refers to the period during the war and after the war, mainly in the United States has entered a period of expanding construction machinery production. Through the prototype or