Results 11 to 20 of about 39,365 (297)

Combined steering–direct tilt control for the enhancement of narrow tilting vehicle stability [PDF]

Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2014
Narrow tilting vehicles offer an opportunity to reduce both traffic congestion and carbon emissions by having a small road footprint, a low weight and a small frontal area. Their narrow track requires that they tilt into corners to maintain stability; this may be achieved by means of an automated tilt control system.
Robertson, James W., Darling, Jos, Plummer, Andrew R.   +2 more
openaire   +3 more sources

Flight Dynamics Modeling and Dynamic Stability Analysis of Tilt-Rotor Aircraft

International Journal of Aerospace Engineering, 2019
The tilt-rotor aircraft has often been proposed as a means to increase the maximum speed of the conventional helicopter. The tilt-rotor aircraft consists of three primary flight modes that are the helicopter flight mode in low forward speed flight ...
Ke Lu, Chunsheng Liu, Chunhua Li, Renliang Chen   +3 more
doaj   +2 more sources

Tilt-to-length coupling in LISA Pathfinder: Long-term stability [PDF]

Physical Review D
The tilt-to-length coupling during the LISA Pathfinder mission has been numerically and analytically modeled for particular time spans. In this work, we investigate the long-term stability of the coupling coefficients of this noise. We show that they drifted slowly (by 1  μm/rad and 6×10−6 in 100 days) and were strongly correlated to temperature ...
Armano M., Audley H., Baird J., Binetruy P., Born M., Bortoluzzi D., Castelli E., Cavalleri A., Cesarini A., Cruise A. M., Danzmann K., De Deus Silva M., Diepholz I., Dixon G., Dolesi R., Ferraioli L., Ferroni V., Fitzsimons E. D., Freschi M., Gesa L., Giardini D., Gibert F., Giusteri R., Grimani C., Grzymisch J., Harrison I., Hartig M. S., Heinzel G., Hewitson M., Hollington D., Hoyland D., Hueller M., Inchauspé H., Jennrich O., Jetzer P., Johann U., Johlander B., Karnesis N., Kaune B., Killow C. J., Korsakova N., Lobo J. A., López-Zaragoza J. P., Maarschalkerweerd R., Mance D., Martín V., Martin-Polo L., Martin-Porqueras F., Martino J., McNamara P. W., Mendes J., Mendes L., Meshksar N., Nofrarias M., Paczkowski S., Perreur-Lloyd M., Petiteau A., Plagnol E., Ramos-Castro J., Reiche J., Rivas F., Robertson D. I., Russano G., Sanjuan J., Slutsky J., Sopuerta C. F., Sumner T., Texier D., Thorpe J. I., Vetrugno D., Vitale S., Wanner G., Ward H., Wass P. J., Weber W. J., Wissel L., Wittchen A., Zweifel P.   +77 more
core   +9 more sources

Mechanical Stability Evaluation of Water-sealed Type Underground Rock Cavern Using Tilt Response to Gas Pressure Change in Cavern [PDF]

Journal of MMIJ, 2017
In addition to hydrological characterization of water-sealed type underground rock caverns, their mechanical stability is constantly monitored by measuring several properties, such as earthquake-induced vibration, strain, and tilt.
Satoshi HIROOKA, Tatsuya YAMAGUCHI, Toshifumi WATABE, Nobuya YAMAMOTO, Kunihiro JODAI, Naotoshi YASUDA, Kazuhiko TSUKADA, Katsuaki KOIKE, Toshihiro ASAKURA   +8 more
doaj   +3 more sources

CFD Aerodynamic Analysis of Tandem Tilt-Wing UAVs in Cruise Flight and Tilt Transition Flight

Drones
The tandem tilt-wing UAV features an advanced aerodynamic layout design and is regarded as a solution for small-scale urban air mobility. However, the tandem wing configuration exhibits complex aerodynamic interactions between the front and rear wings ...
Bin Xiang, Guoquan Tao, Long Jin, Jizheng Zhang, Jialin Chen   +4 more
doaj   +2 more sources

Study on Leakage Performance and Rotordynamic Characteristics of a Novel Semi-Y Type Labyrinth Seal

Lubricants, 2022
A new type of labyrinth seal with semi-Y of rotor teeth (SYLS) is proposed in this paper. The rationality and accuracy of the numerical model are validated by the experimental results, and the static characteristics are investigated.
Huihao Su, Junlin Shi, Wenjie Zhou
doaj   +1 more source

Stability Trend of Tilted Perovskites [PDF]

The Journal of Physical Chemistry C, 2018
Halide perovskites, with prototype cubic phase ABX3, undergo various phase transitions accompanied by rigid rotations of corner-sharing BX6 octahedra. Using first-principles density functional theory calculations, we have performed a comprehensive investigation of all the possible octahedral tilting in eighteen halide perovskites ABX3 (A = Cs, Rb, K; B=
Fazel Shojaei, Wan-Jian Yin
openaire   +2 more sources

Stability of Intraocular Lens With Different Haptic Design: A Swept-Source Optical Coherence Tomography Study

Frontiers in Medicine, 2021
Purpose: To investigate the stability of intraocular lens (IOLs) with different haptics by swept-source anterior-segment optical coherence tomography (AS-OCT).Methods: Sixty-eight eyes from 55 patients received the implantation of Rayner 920H (Closed C ...
Zixuan Xiao, Geng Wang, Miaoru Zhen, Zifeng Zhao   +3 more
doaj   +1 more source

The Effect of Insertion Angles and Depths of Dental Implant on the Initial Stability

Applied Sciences, 2020
The objective of this study was to evaluate the effect of the measurement directions of the Periotest value (PTV) and implant stability quotient (ISQ) of dental implant fixtures inserted at various angles and depths.
Hsiang-Chun Wu, Ming-Tzu Tsai, Jui-Ting Hsu   +2 more
doaj   +1 more source

TILT TEST OF A PALLET LOAD UNIT – SIMULATION STUDIES [PDF]

Scientific Journal of Silesian University of Technology. Series Transport, 2020
This paper presents a dynamic model of a palletised load unit during a static tilt test. The stability (also called rigidity) of a load unit was evaluated. The palletised load unit was built of packages forming layers and protected against disintegration
Tomasz MATYJA
doaj   +1 more source