Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Cui Hu-tao"'
Publikováno v:
Journal of Materials Science & Technology. 32:1372-1377
As a new solid state welding, pinless friction stir welding (PFSW) can be used to join thin-wall structures. In this study, four new pinless tools with different groove distributions were designed and manufactured in order to enrich technological sto
Autor:
Wang, Yi-Ze1 wangyize@126.com, Cui, Hu-Tao1, Li, Feng-Ming2 fmli@bjut.edu.cn, Kishimoto, Kikuo3
Publikováno v:
Acta Mechanica. Jun2013, Vol. 224 Issue 6, p1299-1307. 9p. 6 Diagrams.
Publikováno v:
Journal of the Franklin Institute. 349:493-509
The variable structure control (VSC) with sliding mode is presented to design a tracking control law to ensure the fast and accurate response and robustness of guidance law in this paper. First, the small body dynamic equation is deduced in the landi
Publikováno v:
Aircraft Engineering and Aerospace Technology. 83:296-305
PurposeThe purpose of this paper is to propose an attitude control algorithm for spacecraft with geometric constraints.Design/methodology/approachThe geometric constraint is reformulated as a quadratic form when quaternion is used as attitude paramet
Publikováno v:
Journal of Systems Engineering and Electronics. 19:529-536
The autonomous “celestial navigation scheme” for deep space probe departing from the earth and the autonomous “optical navigation scheme” for encountering object celestial body are presented. Then, aiming at the conditions that large initial
Publikováno v:
2015 34th Chinese Control Conference (CCC).
This work is concerned with the minimum-fuel power descent to a prescribed landing site on a irregular-shaped asteroid. With the small and complicated gravitational field taken into account, we present the equations of spacecraft motion in the astero
Publikováno v:
Aircraft Engineering and Aerospace Technology. 77:317-323
PurposeIn order to succeed in landing asteroids, good accuracy autonomous navigation is absolutely necessary. Aims to describe a new autonomous navigation algorithm.Design/methodology/approachFirst, gray images of asteroid surface are acquired by opt
Publikováno v:
Acta Astronautica. 54:763-771
The autonomous optical navigation and guidance algorithm for soft landing on asteroids is presented. First, the probe position relative to targeted asteroid is acquired from the image coordinates of three selected feature points (FPs) on the asteroid
Publikováno v:
Aircraft Engineering and Aerospace Technology. 75:365-371
Because of indeterminateness of the environment and delay of the communication, deep space spacecraft is required to be autonomous. Planning technology is studied in order to realize the spacecraft autonomy. First, a multi‐agent planning system (MA
Publikováno v:
2010 3rd International Symposium on Systems and Control in Aeronautics and Astronautics.
Autonomous hazard avoidance is a key technology for planetary pinpoint landing. In this paper, passive image based hazard detection and landing point selecting methods are presented. Craters on planetary surface are detected by edge detection, edge m