船舶装饰专用CAD系统的研究与实现

发布时间：2018-06-04 19:51

本文选题：船舶装饰 + 工程CAD　；参考：《华中科技大学》2008年硕士论文

【摘要】： 在传统船舶装饰设计中,主要设计手段是简单利用CAD工具,存在数据输入量大,图面设计和审核工作量大,设计随意性强,难以进行统计清册的问题。本文通过开发船舶装饰专业CAD系统为解决上述问题提供了有效的方案。船舶装饰设计中的主要设计内容是对装饰板材进行图面布置,而板材的布置可以归结为二维布局问题。针对布局问题中的布局对象即布局空间和布局物体,本文中把设计过程划分为底图处理,板材布置两个过程,然后分别给出了相应的CAD策略。在板材布置的基础上,结合图面检查等辅助功能,最终给出了系统的整体框架。首先,针对板材布置中的布局空间的表达,进行底图处理:在绘制底图基线的基础上,通过最小单联通区域识别等算法求出基本布局空间实体,然后利用接长梁等图元对基本布局空间实体进行分割,最终得到布局空间的边界表达形式。其次,对于板材的布置,采用适当形式对不同板材分别进行表达,并根据实际设计规则总结出板材布局的约束条件,然后依据约束条件提出相应的布局算法策略并加以实现。在布局空间和布局算法确定的基础上,最终实现板材的布置功能。对于较为复杂的编辑修改问题,文中提出了新的解决思路:首先提取布板方法并建立修改触发机制,接着通过触发机制来调用修改后的布局空间和布板方法,对布板过程进行重新计算,最终达到编辑修改的目的。最后,应用以上分析成果,对船舶装饰专业CAD系统中的图面设计模块进行了研究和开发;并通过一个设计实例,验证了该系统的实现。同时,从进一步提高设计效率和与产品管理系统集成的角度,提出了对未来工作的展望。
[Abstract]:In the traditional ship decoration design, the main design means is simply using CAD tools, which has the problems of large input of data, large workload of drawing design and examination, and strong randomness of design, which makes it difficult to carry out statistical inventory. This paper provides an effective scheme for solving the above problems by developing the CAD system of ship decoration specialty. The main design content of ship decoration design is to arrange the graphic surface of the decorative plate, and the layout of the plate can be summed up to the problem of two-dimensional layout. In this paper, the design process is divided into two processes, namely, layout space and layout object, and the design process is divided into two processes: bottom map processing and plate layout. Then the corresponding CAD strategies are given. On the basis of plate layout, combined with the auxiliary functions such as surface inspection, the whole frame of the system is finally given. Firstly, base map processing is carried out for the representation of layout space in plate layout: on the basis of drawing base line of base map, The basic layout space entity is obtained by using the minimum single connection region recognition algorithm, and then the basic layout space entity is segmented by using graph elements such as long beam connection, and the boundary expression form of the layout space is obtained finally. Secondly, for the plate layout, the boundary representation of the layout space is obtained. According to the practical design rules, the constraints of plate layout are summarized, and the corresponding layout algorithm strategy is put forward according to the constraint conditions. On the basis of the layout space and the layout algorithm, the layout function of the plate is finally realized. For the more complicated editing and modifying problem, a new solution is put forward: firstly, the layout method is extracted and the trigger mechanism of the modification is established. Then through the trigger mechanism to call the modified layout space and the layout method, the layout process is recalculated, finally the purpose of editing and modification is achieved. Finally, the above analysis results are applied. This paper studies and develops the drawing design module in the CAD system of ship decoration, and verifies the realization of the system by a design example. At the same time, from the point of further improving the design efficiency and integrating with the product management system, the prospect of future work is put forward.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2008
【分类号】：U662.9

【参考文献】