Results 21 to 30 of about 11,763 (288)

Hovering of coaxial Trirotor helicopter constructed with coaxial mechanism driven by a motor

open access: yesNihon Kikai Gakkai ronbunshu, 2014
This paper proposes a coaxial trirotor helicopter constructed with coaxial mechanism driven by one motor. There two types of trirotor unmanned aerial vehicles (UAVs) are existed.
Yoshihiro TAKITA   +2 more
doaj   +1 more source

Calibration of an Automatic System Using a Laser Signature [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2003
The specific phenomenon, which appears in tuned CO2 lasers, called a laser signature, is used as a standard for calibration of the servomechanism. The proposed servomechanism can be used for continuous investigations of the laser signatures of different ...
Edward F. Plinski   +2 more
doaj  

Linkage and Cam Design with MechDev based on Non-Uniform Rational B-Splines

open access: yesMachines, 2020
Several software products exist in order to support engineers during the mechanism design process. The software “Mechanism Developer” (abbr. MechDev) is one of these products. MechDev provides many functionalities concerning the kinematic and
Mario Müller   +3 more
doaj   +1 more source

Intelligent Based Terrain Preview Controller for a 3-axle Vehicle [PDF]

open access: yes, 2016
Presented at 13th International Symposium on Advanced Vehicle Control, AVEC'16; Munich 13-16/09/2016The paper presents a six-wheel half longitudinal model and the design of a dual level control architecture.
Diskett, D.   +4 more
core   +1 more source

Mechanism of temperature-induced zero drift on electro-hydraulic servo valve

open access: yesAIP Advances, 2021
An electro-hydraulic servo valve is objectively asymmetrical in the process of fabrication and assembly, and the zero position is the result of comprehensive adjustment.
Li Ma, Hao Yan, Cunkun Cai, Yukai Ren
doaj   +1 more source

Self-Contained Avionics Sensing and Flight Control System for Small Unmanned Aerial Vehicle [PDF]

open access: yes, 2011
A self-contained avionics sensing and flight control system is provided for an unmanned aerial vehicle (UAV). The system includes sensors for sensing flight control parameters and surveillance parameters, and a Global Positioning System (GPS) receiver ...
Adams, James K.   +9 more
core   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

open access: yesAdvanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart   +3 more
wiley   +1 more source

Tandem control method of two axes with different reduction ratios (Comparison of three methods to equalize the transmission torque for a load)

open access: yesNihon Kikai Gakkai ronbunshu, 2023
Tandem control is the control to drive one load with multiple motors. We compare three tandem control methods to suppress the natural vibration of the system: 1) a common torque method, 2) an average rate feedback method, 3) an individual rate feedback ...
Akihiro MAEKAWA, Takuya IMAEDA
doaj   +1 more source

Deployment/retraction mechanism for solar maximum mission high gain antenna system [PDF]

open access: yes, 1979
A mechanism called a deployment/retraction assembly (DRA) which provides not only a stable, but a deployable platform for the high gain antenna system (HGAS) aboard the Solar Maximum Mission (SMM) spacecraft is described.
Bennett, N., Preiswerk, P.
core   +1 more source

Rheocasting versus Die Casting: An Insight into the Low‐Cycle Fatigue Behavior of AlSi7Mg0.6

open access: yesAdvanced Engineering Materials, EarlyView.
The study compares rheocast lightweight components with high‐pressure die cast materials regarding microstructure and fatigue behavior. Rheocast process offers higher efficiency due to lower casting temperatures. Despite some microstructural differences, both processes show similar strengths (yield strength 125 MPa, tensile strength 240 MPa).
Julia Richter   +4 more
wiley   +1 more source

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