Results 111 to 120 of about 12,334 (255)
Main trends in intensification of rotor-screw processing of parts
MATEC Web of Conferences, 2018 The ways of productivity increase in details finishing-strengthening processing executed in rotor-screw technological systems are presented. It is shown that the use of rotor-screw machines makes it possible to combine the parts machining using a ...
Lebedev Valeriy A. +5 more
doaj +1 more source
CHANCE: A FRENCH-GERMAN HELICOPTER CFD-PROJECT [PDF]
, 2006 The paper gives an overview of the CHANCE research project (partly supported by the French DPAC and DGA and the German BMWA) which was started in 1998 between the German and French Aerospace Research Centres DLR and ONERA, the University of Stuttgart and
Pahlke, Klausdieter +4 more
core
Omnidirectional Shape Proprioception for Untethered Shape Memory Alloy‐Driven Soft Robotic Arms
Advanced Intelligent Systems, EarlyView.A lightweight, modular soft robotic arm employs SMA actuation and a multi‐Hall‐magnet sensing system to achieve accurate omnidirectional shape proprioception. Each 35 g segment enables scalable assembly, while robust proprioception supports versatile navigation and manipulation in complex, unstructured environments.
Yiming Ouyang +7 more
wiley +1 more source
Research investigation of helicopter main rotor/tail rotor interaction noise [PDF]
, 1988 Acoustic measurements were obtained in a Langley 14 x 22 foot Subsonic Wind Tunnel to study the aeroacoustic interaction of 1/5th scale main rotor, tail rotor, and fuselage models.
Kohlhepp, F., Fitzgerald, J.
core +1 more source
Computational analysis of helicopter main rotor blades in ground effect [PDF]
Scientific Technical Review, 2016 Numerical investigation of an isolated representative helicopter main rotor has been performed in ANSYS FLUENT 16.2. In general, flow field around the rotor is unsteady, three-dimensional, complex and vortical.
Trivković Zorana +4 more
doaj
SIMULATION OF TORQUE VARIATIONS IN A DIESEL ENGINE FOR LIGHT HELICOPTERS USING PI CONTROL ALGORITHMS
Applied Computer ScienceThis article presents the results of simulation research of a diesel engine for a light helicopter. The simulations were performed using the 1D software AVL Boost RT.
Paweł MAGRYTA, Grzegorz BARAŃSKI
doaj +1 more source
Main Rotor - Tail Rotor Interactional Noise [PDF]
, 2019 In this paper, effects of main rotor – tail rotor interactions on noise characteristics are investigated for a typical 10 ton class helicopter. Evaluations are performed at hover and quartering flight conditions with top-forward, topforward with 10o of ...
Atalay, Mehmet Melih +3 more
core
Vibration Model on Main Shaft Rotor of Vane Compressor for Automotive Air Conditioning
Zhileng xuebao, 2013 The main shaft rotor is the core component of the vane compressor in automotive air conditioning, and its natural frequency and mode shape have direct impacts on the motion stability of the compressor.
Li Chunyin, Wang Shulin
doaj
Compensating linkage for main rotor control [PDF]
, 1981 A compensating linkage for the rotor control system on rotary wing aircraft is described. The main rotor and transmission are isolated from the airframe structure by clastic suspension.
Huber, R. F., Jeffery, P. A. E.
core +1 more source
Overcrowded Alkene Photo‐Redox‐Switches Based on Quinolinium/Carbene Building Blocks
Angewandte Chemie International Edition, EarlyView.A modular synthesis of a new class of photo‐ and redox‐switches is described based on the combination of quinolinium salts and carbenes. Photochemical switching allows to selectively switch between folded E/Z isomers, while electrochemical switching allows to change between neutral, radical cation and dicationic oxidation states, which are all isolable
Chris Burdenski +10 more
wiley +1 more source