To meet the requirements and functions of spacecraft dynamic simulation and emulation according to different flight periods, the realization of real time system with different configurations, control of the developmen...To meet the requirements and functions of spacecraft dynamic simulation and emulation according to different flight periods, the realization of real time system with different configurations, control of the development cycle and examples of application are presented in detail. On the basis of the satellite dynamic simulation technology, distributed network integrated with the component testing platforms is used to construct a multi-level bus network system. The system takes into full consideration the configuration flexibility, real time characteristics and extendibility. Test results show that both the software algorithm and the hardware integration of the system are correct and effective. The system could be used not only as the effective tool of designing and developing the components and whole assembly of satellites and missiles, but also for the dynamic simulation and emulation in all phases of a spacecraft development cycle.展开更多
A dynamic marine propeller simulation system was developed, which is utilized for meeting the experimental requirement of theory research and engineering design of marine electric propulsion system. By applying an act...A dynamic marine propeller simulation system was developed, which is utilized for meeting the experimental requirement of theory research and engineering design of marine electric propulsion system. By applying an actual ship parameter and its accurate propeller J＇ -KT＇ and J＇ - Kp＇ curve data, functional experiments based on the simulation system were carried out. The experiment results showed that the system can correctly emulate the propeller characteristics, produce the dynamic and steady performances of the propeller under different navigation modes, and present actual load torque for electric propulsion motor.展开更多
Based on the theory of random process and the characteristic of the functioning of a system component subject to a certain specific probability distribution, emulated the whole process of system production on Iongwall...Based on the theory of random process and the characteristic of the functioning of a system component subject to a certain specific probability distribution, emulated the whole process of system production on Iongwall face was emulated, in which the methods of time pace and computer random emulation were adopted. The paper provides an objective basis for the analysis of a mining Iongwall face and the varied lines of effectiveness, machine stoppage rate and coal flow of components and system, and output etc.lt also offers some theories to improve productivity by discussing the application of the transformation plan and optimization of reasonable coal stock capacity, as well as selection of system equipment and matching optimization.展开更多
文摘To meet the requirements and functions of spacecraft dynamic simulation and emulation according to different flight periods, the realization of real time system with different configurations, control of the development cycle and examples of application are presented in detail. On the basis of the satellite dynamic simulation technology, distributed network integrated with the component testing platforms is used to construct a multi-level bus network system. The system takes into full consideration the configuration flexibility, real time characteristics and extendibility. Test results show that both the software algorithm and the hardware integration of the system are correct and effective. The system could be used not only as the effective tool of designing and developing the components and whole assembly of satellites and missiles, but also for the dynamic simulation and emulation in all phases of a spacecraft development cycle.
基金supported by the Fund of Shanghai Committee of Science and Technology(Grant No.11170501700)the International Cooperation and Exchange Projects of the Ministry of Science and Technology(Grant No.2012DFG71850)
文摘A dynamic marine propeller simulation system was developed, which is utilized for meeting the experimental requirement of theory research and engineering design of marine electric propulsion system. By applying an actual ship parameter and its accurate propeller J＇ -KT＇ and J＇ - Kp＇ curve data, functional experiments based on the simulation system were carried out. The experiment results showed that the system can correctly emulate the propeller characteristics, produce the dynamic and steady performances of the propeller under different navigation modes, and present actual load torque for electric propulsion motor.
基金Supported by the Special Topics of Major Scientific and Technological Research Projects Shanxi Province (2006031099-01)Youth Science Funds of Shanxi Province (2006021024)Science and Technology Project of Taiyuan City (07010728)
文摘Based on the theory of random process and the characteristic of the functioning of a system component subject to a certain specific probability distribution, emulated the whole process of system production on Iongwall face was emulated, in which the methods of time pace and computer random emulation were adopted. The paper provides an objective basis for the analysis of a mining Iongwall face and the varied lines of effectiveness, machine stoppage rate and coal flow of components and system, and output etc.lt also offers some theories to improve productivity by discussing the application of the transformation plan and optimization of reasonable coal stock capacity, as well as selection of system equipment and matching optimization.
