90 Result(s)
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Article
Dam** computation of liquid sloshing in containers aboard spacecraft
Under the non-rotating assumption, a method for the calculation of dam** of fuel sloshing with small amplitude in containers aboard spacecraft is proposed in the present paper. And we have presented an eigen...
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Article
Study on relative orbital configuration in satellite formation flying
In this paper, the relative orbital configurations of satellites in formation flying with non-perturbation and J2 perturbation are studied, and an orbital elements method is proposed to obtain the relative orbita...
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Article
Solution set on the natural satellite formation orbits under first-order earth's non-spherical perturbation
Using the reference orbital element approach, the precise governing equations for the relative motion of formation flight are formulated. A number of ideal formations with respect to an elliptic orbit can be d...
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Article
Dam** computation of liquid sloshing with small amplitude in rigid container using FEM
An FEM (Finite Element Method) based dam** estimation method of liquid sloshing with small amplitude in rigid container is proposed. Dam** of the sloshing is affected by many factors and some of them are v...
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Article
Formation reconfiguration in restricted three body problem
Reconfiguration of formation flying around a halo orbit of the Sun-Earth restricted three body system is investigated with impulse maneuvers. For a short time reconfiguration, the two-impulse maneuver is inves...
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Article
The least square particle finite element method for simulating large amplitude sloshing flows
Large amplitude sloshing in tanks is simulated by the least square particle finite element method (LSPFEM) in this paper. The least square finite element method (LSFEM) is employed to spatially discrete the Na...
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Article
Passive walker that can walk down steps: simulations and experiments
A planar passive walking model with straight legs and round feet was discussed. This model can walk down steps, both on stairs with even steps and with random steps. Simulations showed that models with small m...
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Article
PI force feedback control for large flexible structure vibration with active tendons
Active tendon, consisting of a displacement actuator and a collocated force sensor, was first presented by Preumont and his co-workers to attenuate the vibration of large flexible space structures, and the con...
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Article
Multi-swingby optimization of mission to Saturn using global optimization algorithms
Based on the trajectory design of a mission to Saturn, this paper discusses four different trajectories in various swingby cases. We assume a single impulse to be applied in each case when the spacecraft appro...
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Article
Coupled trajectory and attitude stability of displaced orbits
Coupled trajectory and attitude stability of displaced solar orbits is studied by using sailcraft with a kind of two-folding construction with two unequal rectangular plates forming a right angle. Three-dimens...
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Chapter and Conference Paper
Study on the Amplitude Characteristics of Pitch and Heave Motions for a Ship Based on Frequency Scattering
Based on the coupled equations of ship oscillatory motions including pitch and heave, and where wave forces and moments were calculated by using Ordinary Strip Method(OSM), the amplitude of oscillatory motions...
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Chapter
The Practice and Innovation of the Classification Training Mode for Professional Degree Graduates
According to the requirements of graduates’ classification training, combined with the characteristics of the professional degree field “Architecture and Civil Engineering”, we have carried out some preliminar...
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Chapter and Conference Paper
A Wireless Coordinating Scheme Proposed to Improve the Dispatching Security in China’s Railway System
In this paper, we proposed a wireless coordinating networking scheme along china’s high-speed railway. By combing GPS coordinating system with WIFI (802.11n) networking system, a relatively secured design for ...
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Chapter and Conference Paper
Study on Evaluation System of Value Chain Alliance Performance in IT Environment
In the conditions of information technology, enterprises are not alone any more. They ally with enterprises during the process of value formation and form a value chain alliance. Through cooperation operation,...
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Chapter and Conference Paper
The Performance Test Research for Application System of Internet of Things
With the development of application system of Internet of things, the testing requirements about the wireless sensing device are also on the rise. There are two testing requirements. One is the national requir...
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Chapter and Conference Paper
Fault-Tolerant Integrated Navigation Algorithm of the Federal Kalman Filter
As the Federal Kalman filter has some good features such as flexibility, and good fault-tolerance, this paper proposes a federal Kalman filter design method and fault-tolerant structure. The structure uses the...
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Chapter and Conference Paper
A Design of Intelligent Parallel Switching Power Supply Based on Automatic Load Distribution
This article describes an intelligent switching power supply design. This switching power supply bases on push-pull mode, and it can work in multiple parallel mode . Besides, it can also automatically adjust a...
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Chapter
Sports Right of the College Student and Its Assurance
On the basis of the theory of constructing college student’s sports rights system, take some universities in Wuhan as an example, through the investigation of the present situation of college student’s sports ...
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Article
Preface: Orbits around asteroid
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Article
Generalized flyby trajectories around elongated minor celestial bodies as a rotating mass dipole
The aim of this paper is to understand the common characteristics of the generalized flyby trajectory around natural elongated bodies. Such flyby trajectories provide a short-term mechanism to clear away vicin...
