【正文】 ure, normal continuous variable optimization, hybrid discrete variable optimization, has been developed to optimize the design random variables (reliability optimal design), optimal design of fuzzy variables, single objective optimization has grown to multiobjective optimization design. Only to limit the scope of optimal design optimization me thod and its application on the establishment of technological development cannot meet the needs of modern cranes, and only global optimization is the optimization of modern cranes, Optimal Design of generalized optimal design should be an important development, its contents include the automatic optimal design of engineering modeling, optimal design problems before treatment and after treatment, the results of the evaluation of optimal design. 4 Summaries Innovative design is the crane technology has improved continuously and the source of development, the oute of the full use of modern information technology and modern management methods, Modern design techniques integrated crane technology will play a significant role in promoting, crane technology has been growing rapidly, Who innovative design is done well, grasps the technical advantages, grasps the market. 大連 科技 學(xué)院 2020 屆本科生畢業(yè)設(shè)計(jì)（論文）外文翻譯 8 起重機(jī)創(chuàng)新設(shè)計(jì)展望 1 概述 隨著新世紀(jì)全球工業(yè)格局的新變化和我國(guó)工業(yè)技術(shù)水平的快速發(fā)展，創(chuàng)新設(shè)計(jì)越來(lái)越引起院校和企業(yè)的重視。 (10) Product life cycle based on the convenience of maintenance and repair of the design and maintenancefree design。 (7) Expert system with parametric design of the rapid response。 review of agency action principle, the structure interference check is of great practical significance. At the same time in the puter virtual reality system (VRS) in the virtual design environment (VD) for technical studies also began to receive attention. Intelligent design The major industrial countries are from traditional CAD technology continues to intelligent CAD (ICAD) and the direction of manmachine intelligent design system, electrical control system from the analysis, selfadjusting, selfcorrection, intelligent level increased, which make cranes the whole process of design and use of automation and intelligence can be achieved. Optimal Design of Generalized Home about numerical optimization techniques applied to engineering design early 70s, and the current discrete and random variable optimization, structural optimization, intelligent optimization, optimization modeling and optimization of plex systems research methodology has been made in the fields of theory and a considerable level of application of the results, But extended to the forward modeling, processing model, backward extended to the whole process of optimization results show that lack of research indepth and prehensive, and there is a certain gap between the major industrial countries. China crane design parameters on the sensitivity analysis and optimization of the specific application of generalized also achieved initial success. 3 Objectives and key content and direction Target Research and product innovation to grasp the theory and method, and applied to a 大連 科技 學(xué)院 2020 屆本科生畢業(yè)設(shè)計(jì)（論文）外文翻譯 6 number of focused product design, improve product design capability and level of integrated, so that crane products in the product quality, price, delivery and function of type (shape color) and so on to meet the evolving needs of users, in the fierce market petition take more share. Main contents Innovative design techniques Type carried out on the crane drive innovation, structures and functions of innovation theory and technology innovation base in theoretical research, we analyze the new material, new techniques, new gear, and thus through the optimization of different design, deposition and bination to produce a new design, has introduced a new innovative design results transmission. Cost design In the product design process costoriented design techniques and technologies in parallel cost estimate is critical to product cost reduction, The focus is to study the cost structure analysis and value engineering analysis techniques, and the need to construct a variety of specific design knowledge base and cost data to accurately estimate the cost of parallel. Immediate response to achieve product cost through design adjustments to control the product design stage to achieve the true cost of implementation. Innovation does not always equal to the higher costs to the invention with new ponents, use standard ponents, and even standard parts and purchased parts also can be bined into a new product, which is