37results about How to "Guaranteed continuous change" patented technology

The application discloses a combined propulsion device mode conversion scheme design method, comprising the following steps: obtaining a Mach number interval of a combined propulsion device when the combined propulsion device is converted from a first mode to a second mode, and selecting a plurality of representative flight state points; for each representative flight state point, respectively performing discrete scanning on a primary propulsion unit mass flow range and a secondary fuel fuel-air ratio range, to form a plurality of candidate working condition combinations; for each candidate working condition combination, calculating flow and combustion characteristics in a thrust chamber, and screening a target working condition combination which can stably combust and meet a thrust demand; obtaining an optimal target working condition combination under each representative flight state point based on enumeration search, and generating a continuous and implementable mode conversion scheduling path. The application is applied to the combined propulsion field, and can effectively realize efficient, stable and safe operation of a mode conversion process.