Structural design, dynamic analysis, and verification test of a novel double-ring deployable truss for mesh antennas

2021 ◽  
Vol 165 ◽  
pp. 104416
Author(s):  
Zihan Sun ◽  
Dongwu Yang ◽  
Baoyan Duan ◽  
Lingbing Kong ◽  
Yiqun Zhang
Keyword(s):  
Dynamic Analysis ◽  
Structural Design ◽  
Double Ring ◽  
Verification Test

scholarly journals Dynamic analysis of material motion using MATLAB/Simulation environment and test verification

2020 ◽  
Vol 12 (9) ◽  
pp. 168781402095780
Author(s):  
Mei Fang ◽  
Zhihong Yu ◽  
Wenjie Zhang
Keyword(s):  
Dynamic Analysis ◽  
Structural Design ◽  
Simulation Analysis ◽  
Model Simulation ◽  
Maximum Relative Error ◽  
Matlab Simulation ◽  
Simulation Results ◽  
Low Efficiency ◽  
Test Verification ◽  
The Mathematical Model

Throwing device is an important factor that directly affects the performance of chaff cutter. In this work, the dynamic analysis linked with the problem of low efficiency and residue blockage of disc knife chaff cutter is executed. Based on this perspective, the mathematical model, simulation, and testing of the material movement have been carried out. Simulations are performed in MATLAB/Simulink environment. An anemometer records the airflow velocity, which provides data for simulation analysis. The simulation results showed that during the movement along the blade, the material first performs deceleration and then accelerates; in other stages, only deceleration. And finally calculated the throwing distance. To support the presented simulations, an experimental study is conducted. The experimental results are compared with simulation results, the maximum relative error between the simulated value and the experimental value is 9.42%, which verified the correctness of the model. This research provides a theoretical basis for the structural design, parameter optimization, and matching of the chaff cutter.

Dynamic Response of a Steel-Concrete Hybrid Frame to Support 15MW Compressor

2012 ◽  
Author(s):  
Seunghoon Shin ◽  
Guangyoung Sun ◽  
Juwon Lee ◽  
Kangboo Kim
Keyword(s):  
Dynamic Analysis ◽  
Structural Dynamics ◽  
Structural Design ◽  
Modal Testing ◽  
Dynamic Loads ◽  
Structural Vibration ◽  
Aerodynamic Load ◽  
Radial Load ◽  
Structural Dynamic ◽  
Test Result

In this paper, the structural dynamics study of the frame to support 15MW compressor is suggested. This study used the steel-concrete hybrid frame to support a large compressor system. This paper provided experimental and analytical method to structural design the hybrid frame by considering in rotordynamics and aerodynamics. Dynamic characteristics of the frame have to be identified to tune the finite element model’s boundary condition and to avoid resonance. Therefore modal testing of the frame is performed and boundary conditions are modified applying to the previously obtained modal parameters. While compressor is operated, multiple dynamic loads of compressor, motor and expander may excite on the frame. The total dynamic load is derived by axial aerodynamic load of impeller, radial load of gear and unbalance load of rotor. After dynamic analysis completion, the analysis result is compared with test result to verify the accuracy of analysis. Through this structural dynamic analysis, structural vibration response of hybrid frame can be estimated.

Dynamic Analysis and Experiment Research of the Two-Mass Feeder

2012 ◽  
Vol 488-489 ◽  
pp. 1823-1828
Author(s):  
Zhan Jiang Li ◽  
Fei Chen
Keyword(s):  
Experimental Data ◽  
Theoretical Analysis ◽  
Dynamic Analysis ◽  
Dynamic Model ◽  
Structural Design ◽  
Scientific Basis ◽  
Experiment Research

In this paper, we make a theoretical analysis for the two-mass feeder. The dynamic model of the two-mass feeder is established. According to the analysis of vibration equations, the reasons that lead to forward and backward swing of the feeder are found. We collect a large number of experimental data in order to verify the correctness of the theoretical analysis, and give the corresponding improvements. The results provide a strong scientific basis for the examiner and the improvement of structural design, making the design become more rational.

Structural Design and Dynamic Analysis of Anti-Reversion Mechanism of Feed Mechanism

2013 ◽  
Vol 694-697 ◽  
pp. 45-50
Author(s):  
Li Yang ◽  
Zhi Li Sun ◽  
Yu Ning Wang ◽  
Qian Li Zhao
Keyword(s):  
Dynamic Analysis ◽  
Dynamic Characteristics ◽  
Structural Design ◽  
Virtual Prototyping ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Characteristics Analysis ◽  
Virtual Prototyping Technology ◽  
Motion Characteristics ◽  
The Stability

Because of easy for the bomb-stirring system of feed mechanism to reverse at its non-working position, which can affect the stability of the whole system. Virtual Prototyping Technology can help people to complete the design of overall structure of feed mechanism and anti-reversion mechanism of automaton. ADAMS, one kind of dynamics simulation software, can help to complete the motion characteristics analysis of anti-reversion mechanism, achieving the motion law of mechanism parts and movement dynamic characteristics, as well as verifying the rationality of the design of mechanism.

Dynamic Modeling and Simulating Analysis of Submersible Buoy System

2013 ◽  
Vol 475-476 ◽  
pp. 1391-1396 ◽  
Author(s):  
Zhan Feng Qi ◽  
Li Juan Jia ◽  
Yu Feng Qin ◽  
Sen Zhang ◽  
Xiu Jun Sun
Keyword(s):  
Dynamic Analysis ◽  
Numerical Computation ◽  
Dynamic Model ◽  
Dynamic Modeling ◽  
Marine Environment ◽  
Structural Design ◽  
Lumped Mass ◽  
Simulating Analysis

The submersible buoy system is an important tool in the profile observation of marine environment. According to the lumped mass based method, the dynamic modeling of the submersible buoy system is established, then the dynamic analysis is carried out. The dynamic model is solved and analyzed by using the software MATLAB. The result provides theoretical reference for its structural design and numerical computation of the submersible buoy system.

scholarly journals Modulation of the Transmission Spectra of the Double-Ring Structure by Surface Plasmonic Polaritons

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Senfeng Lai ◽  
Yanpei Guo ◽  
Guiyang Liu ◽  
Chun Shan ◽  
Lixin Huang ◽  
...  
Keyword(s):  
Structural Design ◽  
Incident Light ◽  
Peak Position ◽  
Ring Structure ◽  
Transmission Peak ◽  
Transmission Spectra ◽  
Concentric Ring ◽  
Interference Structure ◽  
Double Ring ◽  
Useful Components

This paper proposes a new structural design to excite surface plasmonic polaritons to enhance the double-ring interference structure. The double-ring structure was etched into a thin film to form fundamental interference patterns, and periodic concentric-ring grooves were employed to gather energy from the surrounding regions through the excitation of surface plasmonic polaritons. Accordingly, the energy of the incident light can be concentrated at the center. The surface plasmon modulates the interference pattern and the transmission spectra. The transmission peak position and its intensity can be tuned by changing the alignment of the grooves. The proposed structure can be applied for designing plasmonic devices as useful components of the plasmonic toolbox.

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