协同三维几何建模动态访问技术研究  

Dynamic accessing technology of 3D geometric modeling for collaborative design

作　　者：罗天洪[1] 陈小安[2] 方义平 

机构地区：[1]重庆交通大学机电与汽车工程学院,重庆400074 [2]重庆大学机械传动国家重点实验室,重庆400030 [3]中国石油集团钻井工程技术研究院康布尔公司,北京100041

出　　处：《计算机应用研究》2009年第5期1636-1638,1644,共4页Application Research of Computers

基　　金：中国博士后基金项目(20070420714);重庆市教委科技资助项目(KJ070411)

摘　　要：为解决协同设计过程中几何模型的动态访问问题,提出一种基于W eb的协同设计环境下三维几何建模动态访问的分布式体系结构、异类CAD系统之间的动态数据交换组织模式。同时,提出一种面向对象的基于优先权限的乐观并发控制协议,保证模型动态访问在各站点操作的执行结果之间的一致性。在这些技术的共同作用下实现了协同三维几何建模动态访问技术,并通过具体实例验证了该技术的可行性。To solve the dynamic accessing of geometric modeling for collaborative design, researched several key technologies and presented a distributed system structure of collaborative design. Developed the organization mode of dynamic data exchange, which carried out the real-time exchange and consistency of the dynamic data among the different platforms and CAD systems. Developed an object-oriented priority-based optimistic concurrency control protocol （OPOCCP） , which ensured high efficiency and consistency of sharing model and data at different sites. Integrated all the technologies, realized the dynamic aeces-sing technology of 3D geometric modeling for collaborative design. Finally, took an example to validate the dynamic accessing technologies.

关 键 词：协同设计 动态访问 并发控制 

分 类 号：U653.921[交通运输工程—港口、海岸及近海工程] TP391.72[交通运输工程—船舶与海洋工程]