GGTS: FPGA-Based General Ground Test System for Space-Borne Equipment

2021 ◽  
Author(s):  
Jialu Mang ◽  
Zhiliang Qiu ◽  
Weitao Pan ◽  
Meng Dong ◽  
Min Wu
Keyword(s):  
Test System ◽  
General Ground ◽  
Ground Test

Modeling and Analysis of the Ground Experiment for Restricted Three-Body Problem

2014 ◽  
Vol 926-930 ◽  
pp. 3084-3087
Author(s):  
Hao Yang Li ◽  
Zhi Kun She ◽  
Bai Xue ◽  
Wang Jie Qiu ◽  
Zhi Ming Zheng
Keyword(s):  
Mathematical Model ◽  
Body Problem ◽  
Test System ◽  
Body Motion ◽  
Ideal Condition ◽  
Restricted Three Body Problem ◽  
Three Body Problem ◽  
Ground Test ◽  
Three Body ◽  
The Ideal

This paper analyzes the restricted three-body problems in the ground test systems. First, under the ideal condition, after analyzing the forces on the spacecraft in the rotating coordinates, a mathematical model of elliptic restricted three-body motion is founded. Second, for the restricted three-body problem in the ground test system, the forces on the test ball are analyzed and the corresponding elliptic mathematical model apart from the perturbation is founded. Then, based on the two models founded above, the similarity between the ideal spatial model and the ground simulation model is analyzed.

Study on Special Vehicle’s Handling Stability by Test Technology

2014 ◽  
Vol 623 ◽  
pp. 3-9
Author(s):  
Yuan Zhao ◽  
Hong Jie Cheng ◽  
Yan Liu ◽  
Zhao Jun Wu
Keyword(s):  
Detection System ◽  
Test System ◽  
Test Method ◽  
Steering Wheel ◽  
Fast Evaluation ◽  
The Road ◽  
Circular Test ◽  
Special Vehicle ◽  
On Line ◽  
Ground Test

According to handling stability problem in using process of special vehicle, its evaluation test method is researched and analyzed. Referring to national profession norm, the on-line detection system of handling stability of special vehicle is constructed, and the design idea of evaluation software is also illustrated. Finally, based on the constructed testing system, the proving ground test of special vehicle is carried out, including the transient response test of steering wheel impulse input, the test of steering wheel returnability, and the steady static circular test. The test results indicate the feasibility and validity of the constructed test system, which provides technical support for detection on-line and fast evaluation of handling stability of special vehicle in riding process, and enhance the road safety during the riding process of missile weapon system.

scholarly journals Estimation of Vibration Characteristics of a Space Manipulator From Air Bearing Supported Test Data

2021 ◽  
Vol 8 ◽  
Author(s):  
Haiquan Li ◽  
Qingqing Wei ◽  
Jianxun Liang ◽  
Weiyan Ren ◽  
Zixin Tang ◽  
...  
Keyword(s):  
Test Data ◽  
Joint Stiffness ◽  
Test System ◽  
Vibration Characteristics ◽  
Air Bearing ◽  
Air Bearings ◽  
Space Manipulator ◽  
Space Manipulators ◽  
Ground Test ◽  
Stiffness And Damping

Space manipulators have attracted much attention due to their implications in on-orbit servicing in recent years. Air bearing based support equipment is widely used for ground test to offset the effect of gravity. However, an air bearing support introduces a new problem caused by additional inertial and mass properties. Additional mass and inertial load will influence the dynamics behavior, especially stiffness information and vibration response of the whole ground test system. In this paper, a set of procedures are presented to remove the influence of air bearings and identify the true equivalent joint stiffness and damping from the test data of a motor-braked space manipulator with an air bearing support. First, inertia parameters are identified. Then, the equivalent joint stiffness and damping are determined by using a genetic algorithm (GA) method. Finally, true vibration characteristics of the manipulator are estimated by removing the additional inertia caused by the air bearings. Moreover, simulations and experiments are carried out to validate the presented procedures.

scholarly journals A Research Study for the Design of a Portable and Configurable Ground Test System for the A400M Aircraft

2019 ◽  
Vol 2019 ◽  
pp. 1-16
Author(s):  
Diego F. Larios ◽  
Julio Barbancho ◽  
Félix Biscarri ◽  
Iñigo Monedero
Keyword(s):  
Research Study ◽  
State Of The Art ◽  
Test System ◽  
Test Equipment ◽  
Testing System ◽  
Ground Testing ◽  
Current Trends ◽  
Ground Test ◽  
Interface Modules ◽  
And Control

This paper presents a study of the most suitable ground test equipment for the Airbus A400M aircraft aimed at optimizing a design that combines portability, flexibility, and configurability. The study is based on current trends in the configuration of the different parts that are involved in the process of designing Aircraft Interface Modules (AIMs). Researches have been conducted facing the real problems of data acquisition and control in the assembly, maintenance, and repair processes of aircraft. In this sense, the number of signals used simultaneously in historical tests has been determined to be a parameter that plays an important role in the analysis. This work is within the framework of a project that our working group of the Department of Electronic Technology has carried out together with the company Airbus Defense and Space (Airbus DS). Thus, all the analyses and researches for the different configurations of the test equipment have been validated for the company. Some state-of-the-art systems have been considered in the process of designing the structure of the test system while analyzing the main advantages and drawbacks. Every hardware or software component was identified and justified according to its importance with respect to the use case. A comparison of how every approach meets the requirements was taken into account to define a methodology for designing a portable and configurable ground testing system. Thus, the conclusions of our study are being used by Airbus DS for the design of a prototype for the next generation of AIMs in A400M.

Sign in / Sign up

Export Citation Format

Share Document