建立了系统整合、流程统一、参数优化、协同设计的综合设计优化环境.通过分析复杂工程系统的特点,建立了具有高可扩展性的多层体系架构.阐述了组成该环境的4个关键模块:项目组织与管理模块,保证项目进度和质量;以设计结构矩阵为表达形...建立了系统整合、流程统一、参数优化、协同设计的综合设计优化环境.通过分析复杂工程系统的特点,建立了具有高可扩展性的多层体系架构.阐述了组成该环境的4个关键模块:项目组织与管理模块,保证项目进度和质量;以设计结构矩阵为表达形式、以工作流参考模型为运行机制的过程建模与执行模块,提供跨部门的任务流转;基于组件技术,实现人员、数据和工具在网络上紧密集成的设计任务单元模块,为系统设计提供简洁一致的任务模型;以产品数据管理(PDM,Product Data Management)为信息基础结构的产品数据模型,提供单一数据源.最后给出了技术实现和运行机制.该环境的原型系统已成功地经过了气动、结构、控制和总体设计等领域的设计与优化技术测试试验.展开更多
As a matured technique used in many fields,the distributed computer system is still a new management method for the aeronautical electrical power distribution system in our country. In this paper, a novel aircraft ele...As a matured technique used in many fields,the distributed computer system is still a new management method for the aeronautical electrical power distribution system in our country. In this paper, a novel aircraft electrical power distribution system based on the distributed computer system is proposed. The principles, features and structure of the aircraft electrical power distribution system and the distributed computer system named electrical load management system (ELMS) are studied. The ELMS composed of four electrical load management centers (ELMCs) and two power source processors (PSPs) operates in the 1553B buses. Principles of the ELMCs and the PSPs are introduced. With the application of the distributed computer system, the aircraft electrical power distribution system is simple, adaptable and flexible.展开更多
In light of the high nonlinearity of LuGre friction model, a novel method based on ant colony algorithm(ACA) for identifying the friction parameters of flight simulation servo system is proposed. ACA is a parallelized...In light of the high nonlinearity of LuGre friction model, a novel method based on ant colony algorithm(ACA) for identifying the friction parameters of flight simulation servo system is proposed. ACA is a parallelized bionic optimization algorithm inspired from the behavior of real ants, and a kind of positive feedback mechanism is adopted in ACA. On the basis of brief introduction of LuGre friction model, a method for identifying the static LuGre friction parameters and the dynamic LuGre friction parameters using ACA is derived. Finally, this new friction parameter identification scheme is applied to a electric-driven flight simulation servo system with high precision. Simulation and application results verify the feasibility and the effectiveness of the scheme. It provides a new way to identify the friction parameters of LuGre model.展开更多
文摘建立了系统整合、流程统一、参数优化、协同设计的综合设计优化环境.通过分析复杂工程系统的特点,建立了具有高可扩展性的多层体系架构.阐述了组成该环境的4个关键模块:项目组织与管理模块,保证项目进度和质量;以设计结构矩阵为表达形式、以工作流参考模型为运行机制的过程建模与执行模块,提供跨部门的任务流转;基于组件技术,实现人员、数据和工具在网络上紧密集成的设计任务单元模块,为系统设计提供简洁一致的任务模型;以产品数据管理(PDM,Product Data Management)为信息基础结构的产品数据模型,提供单一数据源.最后给出了技术实现和运行机制.该环境的原型系统已成功地经过了气动、结构、控制和总体设计等领域的设计与优化技术测试试验.
文摘As a matured technique used in many fields,the distributed computer system is still a new management method for the aeronautical electrical power distribution system in our country. In this paper, a novel aircraft electrical power distribution system based on the distributed computer system is proposed. The principles, features and structure of the aircraft electrical power distribution system and the distributed computer system named electrical load management system (ELMS) are studied. The ELMS composed of four electrical load management centers (ELMCs) and two power source processors (PSPs) operates in the 1553B buses. Principles of the ELMCs and the PSPs are introduced. With the application of the distributed computer system, the aircraft electrical power distribution system is simple, adaptable and flexible.
文摘In light of the high nonlinearity of LuGre friction model, a novel method based on ant colony algorithm(ACA) for identifying the friction parameters of flight simulation servo system is proposed. ACA is a parallelized bionic optimization algorithm inspired from the behavior of real ants, and a kind of positive feedback mechanism is adopted in ACA. On the basis of brief introduction of LuGre friction model, a method for identifying the static LuGre friction parameters and the dynamic LuGre friction parameters using ACA is derived. Finally, this new friction parameter identification scheme is applied to a electric-driven flight simulation servo system with high precision. Simulation and application results verify the feasibility and the effectiveness of the scheme. It provides a new way to identify the friction parameters of LuGre model.
