Based on the method of symplectic geometry and variational calculation,the method for some PDEs to be ordered and analytically represented by Hamiltonian canonical system is discussed.Meanwhile some related necessar...Based on the method of symplectic geometry and variational calculation,the method for some PDEs to be ordered and analytically represented by Hamiltonian canonical system is discussed.Meanwhile some related necessary and sufficient conditions are obtained展开更多
为了实现对以往设计经验及知识的继承和重用,将知识工程(Knowledge based Engineering,KBE)技术应用到采煤机数字化设计中。建立了采煤机数字化设计系统体系结构,针对采煤机领域知识特点,运用面向对象及产生式知识表示模式建立了丰富的...为了实现对以往设计经验及知识的继承和重用,将知识工程(Knowledge based Engineering,KBE)技术应用到采煤机数字化设计中。建立了采煤机数字化设计系统体系结构,针对采煤机领域知识特点,运用面向对象及产生式知识表示模式建立了丰富的知识库,并将实例推理和规则推理的集成机制应用于采煤机设计中。以Unigraphics为平台开发了基于KBE的采煤机数字化设计系统(Digital Design System for Coal Mining Machine,DDS-CMM),实现了采煤机的概念设计和零部件设计的数字化过程,积累了设计经验和知识,缩短了产品生命周期。展开更多
基金Supported in part by the National Natural Science Foundation of China (1 0 0 71 0 2 1 ) the Foundationfor University Key Teacher by MEC and Shanghai Priority Academic Discipline Foundation
文摘Based on the method of symplectic geometry and variational calculation,the method for some PDEs to be ordered and analytically represented by Hamiltonian canonical system is discussed.Meanwhile some related necessary and sufficient conditions are obtained
文摘为了实现对以往设计经验及知识的继承和重用,将知识工程(Knowledge based Engineering,KBE)技术应用到采煤机数字化设计中。建立了采煤机数字化设计系统体系结构,针对采煤机领域知识特点,运用面向对象及产生式知识表示模式建立了丰富的知识库,并将实例推理和规则推理的集成机制应用于采煤机设计中。以Unigraphics为平台开发了基于KBE的采煤机数字化设计系统(Digital Design System for Coal Mining Machine,DDS-CMM),实现了采煤机的概念设计和零部件设计的数字化过程,积累了设计经验和知识,缩短了产品生命周期。
