The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
After generating reference trajectory in the process of reentry guidance for reusable launch vehicle, if the designed bank angle curve is too close to the constraint boundary, there is a great possibility for the obtained reference trajectory to exceed the reentry corridor boundary. This paper proposed a margin searching method, to reduce the likelihood of generating a reference trajectory which exceeds...
A simulation method was used to investigate the effects of experiment parameters on particle formation of 63Sn-37Pb based on POEM. The results show that stable particles could be obtained only with adequate clearance. Particles with various sizes are obtained by rationally controlling the diameter of orifice, rod velocity and applied pressure. 63Sn-37Pb mono-sized sphere micro particles with different...
Chaos anti-control is considered for mechanical vibration control. The linear system under period excitation is guided to a chaotic system by a traditional control method. After the dynamic equation of the system is transferred to a dimensionless one, it was made to track Duffing system by adding a controller. The control parameters were selected according to Mélnikov criterion instead of calculation...
Mode matching method is a useful way to analyze the mode characteristics during the section change of the waveguide. By applying this method to the radial waveguide and solving specific problems due to the radial transmission of electromagnetic wave, a calculating method in radial waveguide based on mode matching is presented. The scattering characteristic of metallic plates in radial waveguide is...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.