Results 21 to 30 of about 90,052 (317)

Stochastic Subspace Method for Experimental Modal Analysis

MATEC Web of Conferences, 2016
The formula of stochastic subspace identification method is deduced in details and the program is written out. The two methods are verified by a vibration test on a 5-floor rigid frame model.
Liu Dazhi, Xiang Shuhong, Fan Shichao, Li Ye, Liu Zheng, Sun Jiangang   +5 more
doaj   +1 more source

Predicting Spacecraft Telemetry Data by Using Grey–Markov Model with Sliding Window and Particle Swarm Optimization

Journal of Mathematics, 2023
Predicting telemetry data is vital for the proper operation of orbiting spacecraft. The Grey–Markov model with sliding window (GMSW) combines Grey model (GM (1, 1)) and Markov chain forecast model, which allows it to describe the fluctuation of telemetry
Liang Ren, Feng Yang, Yuanhe Gao, Yongcong He   +3 more
doaj   +1 more source

Thermal Characteristic of Novel Insulation Materials Designed for Solar Simulator

Energies, 2022
The solar simulator is an important device for simulating solar irradiation in cold black and vacuum environments and has a wide range of application prospects.
Wenjing Ding, Ying Zhou, Miao Gu, Jie Gong, Jinghao Xu   +4 more
doaj   +1 more source

Spacecraft-Mounted Robotics

Annual Review of Control, Robotics, and Autonomous Systems, 2023
Space-mounted robotics is becoming increasingly mainstream for many space missions. The aim of this article is threefold: first, to give a broad and quick overview of the importance of spacecraft-mounted robotics for future in-orbit servicing missions; second, to review the basic current approaches for modeling and control of spacecraft-mounted ...
Panagiotis Tsiotras, Matthew King-Smith, Lorenzo Ticozzi   +2 more
openaire   +1 more source

Research on nanosatellite thermal cycling test applicability

MATEC Web of Conferences, 2017
In order to verify the spacecraft performance in extreme temperature and vacuum, and to screen spacecraft early defect, generally spacecraft TV (Thermal Vacuum) test should be carried out before launch.
Li Xiyuan, Yang Xiaoning, Shang Yonghong, Bi Yanqiang, Wang Jing, Lin Guiping   +5 more
doaj   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

An Analytical Method for Solar Heat Flux in Spacecraft Thermal Management Under Multidimensional Pointing Attitudes

Energies
In order to provide a theoretical basis for the thermal analysis and management of spacecraft/payload interstellar pointing attitudes, which are used for inter-satellite communication, this paper develops an analytical method for solar heat flux under ...
Xing Huang, Tinghao Li, Hua Yi, Yupeng Zhou, Feng Xu, Yatao Ren   +5 more
doaj   +1 more source

Optimal geometric motion planning for a spin-stabilized spacecraft

, 2012
A method requiring low-computational overhead is presented which generates low-torque reference motions between arbitrary orientations for spin-stabilized spacecraft.
Biggs, James, BIGGS, JAMES DOUGLAS, Horri, Nadjim   +2 more
core   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

Advanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen, Renato S. M. Almeida, Stefan Flauder, Guillaume Couégnat, Kamen Tushtev, Jürgen Horvath, Peter Wriggers, Kurosch Rezwan   +7 more
wiley   +1 more source

Research of the Technology and Application of 3D Model Based Assembly Structural Process Design for Spacecraft

MATEC Web of Conferences, 2016
In order to implement spacecraft assembly based on MBD, this article proposes a method of structural process design based on 3D model. First, an Assembly Digital Mock-up (ADMU) is constructed.
Wan Bi Le, He Wen Xing, Chen Chang Yu
doaj   +1 more source