Results 31 to 40 of about 117 (107)
Helicopter Safe Landing Trajectory after Main Rotor Actuator Failures
Applied Sciences, 2020 Main rotor actuator failure leads to catastrophic accidents for single main rotor helicopters. This paper focuses on safe landing trajectories after an actuator is locked in place by the remaining actuators, without introducing other control inputs.
Yunjie Wang +3 more
doaj +1 more source
Design and Dynamics Simulation of a New Type of Swashplate Engine
Jixie chuandong, 2021 To extend the application of the swashplate engine from special engines to the field of general power machinery， it is necessary to considerate speed stability， dynamic balance performance and manufacturing， etc.
Yuxiao Zhang +4 more
doaj
Friction, 2019 High-pressure axial piston pumps operate in high-speed and high-pressure environments. The contact state of the slipper against the swashplate can easily change from an oil film lubrication to a mixed oil film/asperity contact, or even dry friction.
Huaichao Wu +3 more
doaj +1 more source
Aerospace, 2023 An electrically controlled rotor (ECR), also known as a swashplateless rotor, eliminates the swashplate system to implement the primary control via the trailing-edge flaps (TEFs), which can result in enhancements in rotor performance, as well as ...
Changwu Liang +4 more
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Advances in Mechanical Engineering, 2021 To provide a precise model of dynamic components in the constant pressure pump, and to improve the accuracy of dynamic calculation of the constant-pressure hydraulic system in its design stage, the research undertook mapping on a particular constant ...
Zheng Yan
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Open-Loop Simulation of Active Vibration Control of Electrically Controlled Rotor
Machines, 2023 An electrically controlled rotor (ECR), also known as a swashplateless rotor, is an active rotor system that reduces the vibration load of the rotor through active control while achieving primary control by using a trailing edge flap system instead of a ...
Kewei Li +3 more
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Detailed Experimental and Model-Based Analysis of a Swash-Plate Piston Expander for ORC Application
Frontiers in Energy Research, 2020 A 195 cm3 swash-plate piston expander was tested in an ORC using R245fa as working fluid. Rotational speeds ranging from 1,000 to 4,000 RPM and pressure ratios from 7 to 12 were imposed. In total, 65 steady state points were measured.
Jean-François Oudkerk, Vincent Lemort
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Multidisciplinary Design Optimization of a Swash-Plate Axial Piston Pump
Applied Sciences, 2016 This work proposes an MDO (multidisciplinary design optimization) procedure for a swash-plate axial piston pump based on co-simulation and integrated optimization.
Guangjun Liu +4 more
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Aerospace, 2023 An electrically controlled rotor (ECR) is a kind of swashplateless rotor that implements the primary control via the trailing-edge flap system instead of a swashplate and demonstrates great potential in vibration reduction and noise alleviation.
Lingzhi Wang, Taoyong Su
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Mathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019 The pressure distribution (PD) and leakage between the slipper and swash plate in an axial piston pump (APP) have a considerable impact on the pump efficiency, affecting aspects such as the load bearing and wear performance of the slipper. Herein, multigene genetic programming (MGGP) and artificial neural network (ANN) machine learning methods (MLMs ...
Özkan Özmen +4 more
wiley +1 more source