•A novel propeller to produce both thrust and manoeuvrability.•A novel mechanism to produce both manoeuvring force/torque and thrust that same time.•Cyclically change the blade angular velocity ...relatively to the hub as opposed the change of pitch for helicopter propellers.•Able to create high manoeuvring torque, over 5 times of the thrust only mode.•Best application for vehicles require high manoeuvrability.
The existing propulsor that can perform both propulsion and maneuvering along axis of rotation is propeller/rotor for a helicopter. Helicopter propellers when maneuvering increase or decrease their blades’ pitch cyclically to create imbalanced thrust and hence maneuvering force/torque. A “maneuverable propeller” was developed and its performance on both maneuvering and propulsion is assessed. The “maneuverable propeller” is an alternative of the existing helicopter rotors. The novelty of this propulsor is that the imbalanced thrust force/torque is created by cyclically increasing or decreasing the angular speed of their blades relatively to the hubs/shafts, to provide the desired maneuvering torque. This maneuverable propeller is hence defined as the Cyclic Blade Variable Rotational Speed Propeller (CBVRP). One of the best advantages is that the maneuvering torque created by the “maneuverable propeller” is much higher, about 5 times of the shaft torque of the same propeller at thrust only mode. The “maneuverable propeller” has wide applications for both surface ships and underwater vehicles that require high maneuverability for cruising inside the narrow passage.
Provider: - Institution: Scientific and Technical Library of the National Aviation University - Научно-техническая библиотека - Data provided by Europeana Collections- Книга дает образцы и методику ...решения задач по теории авиационных двигателей в объёме курса, читаемого в авиационных втузах. В ней даны наиболее четкие решения задач на все разделы курса.
Книга может служить пособием как для студентов втузов при прохождении курса, так и для инженеров при выполнении расчетов. The book gives examples of methodology and solution of problems in the theory of aircraft engines in the amount of courses taught in aviation technical colleges. It gives the clearest problem solving on all sections of the course.
The book can serve as a guide for students of technical colleges during the course of, and for engineers when performing the calculations.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: - Institution: Scientific and Technical Library of the National Aviation University - Научно-техническая библиотека - Data provided by Europeana Collections- В работе излагаются вихревая ...теория и метод аэродинамического расчета ротора геликоптера с жестким креплением лопастей на режимах горизонтального полета и набора высоты. Приводятся графики вспомогательных функций для расчета индуктивных скоростей. The paper outlines the vortex theory and the method of calculating the aerodynamic rotor helicopter blades are rigidly secured to horizontal flight modes and climb. Provides graphics support functions for calculating inductive speed.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Provider: - Institution: Scientific and Technical Library of the National Aviation University - Научно-техническая библиотека - Data provided by Europeana Collections- В первой части, названной ...автором теорией уравновешивания, рассматриваются все подготовительные операции, связанные с уравновешиванием, вторая же часть, построеная на базе первой, является основной и посвящается непосредственно уравновешиванию механизмов авиационных моторов. In the first part, the author calls the theory of balancing, considered all the preparatory operations associated with trim, the second part, built on the basis of the first, is the main and dedicated directly balancing mechanisms aircraft engines.- All metadata published by Europeana are available free of restriction under the Creative Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
