scholarly journals Structural Design and Control of a Morphing Winglet to optimize the Aerodynamic Performance of the CRJ-700 Aircraft. Part 2 – Control

2021 ◽  
Vol 13 (4) ◽  
pp. 129-137
Author(s):  
Paul MEYRAN ◽  
Hugo PAIN ◽  
Ruxandra Mihaela BOTEZ ◽  
Jeremy LALIBERTÉ
Keyword(s):  
Structural Design ◽  
Aerodynamic Performance ◽  
Matlab Simulink ◽  
Flight Data ◽  
Geometrical Data ◽  
Morphing Technology ◽  
And Control

In this study, the morphing technology was applied on winglets for the CRJ-700 transport regional aircraft with the aim to improve its aerodynamic performance. The LARCASE Virtual Research Simulator VRESIM is equipped with highest Level D certified flight data for the CRJ-700. The flight and geometrical data of the CRJ-700 were used to quantify the aerodynamic benefits of the CRJ-700 equipped with a morphing winglet versus its reference winglet. The structural design and the mechanism allowing its rotation were used to allow the orientation of the winglet with angles between 90° and -90°. The control of the orientation of the morphing winglet with its mechanism was finally carried out using the Matlab/ Simulink interface. Therefore, a new concept of morphing winglet was obtained in this research.

scholarly journals Morphing Winglet Design for Aerodynamic Performance Optimization of the CRJ-700 Aircraft. Part 1 – Structural Design

2021 ◽  
Vol 13 (4) ◽  
pp. 113-128
Author(s):  
Paul MEYRAN ◽  
Hugo PAIN ◽  
Ruxandra Mihaela BOTEZ ◽  
Jeremy LALIBERTÉ
Keyword(s):  
Performance Optimization ◽  
Structural Design ◽  
Structural Model ◽  
Aerodynamic Performance ◽  
Structural Components ◽  
Transport Aircraft ◽  
Aerodynamic Loads ◽  
Load Factors ◽  
Morphing Technology ◽  
Maximum Stresses

This study aims to design a morphing winglet structure for the CRJ-700 regional transport aircraft. The morphing technology is applied on winglets to demonstrate a significant increase of the aerodynamic performance of aircraft. From the aerodynamic data of the LARCASE Virtual Research Simulator VRESIM, the aerodynamic benefits in the cruising phase were obtained through a study on the ParaView software. The morphing winglet design was drawn using CATIA V5; this new concept included several structural components, as well as a simple and light mechanism allowing to orientate the winglet angles between 90° and -90° of inclination. The structural model was exported to HyperMesh structural analysis software. Maximum stresses were obtained, and the model demonstrated its resistance to maximum aerodynamic loads as well as load factors of -2G to 7G.

scholarly journals Structural design and control of modular tensegrity structures

2014 ◽  
Vol 19 (6) ◽  
pp. 687-702 ◽  
Author(s):  
Sarah Amouri ◽  
Julien Averseng ◽  
Jérôme Quirant ◽  
Jean-François Dube
Keyword(s):  
Structural Design ◽  
Tensegrity Structures ◽  
And Control

Design of Hydraulic Station of Crawler Hydraulic Drilling Rig

2014 ◽  
Vol 889-890 ◽  
pp. 380-384
Author(s):  
Zhi Liu ◽  
Peng Fang ◽  
Di Wu ◽  
Dong Li
Keyword(s):  
Design Process ◽  
Structural Design ◽  
Control Technique ◽  
Pumping Station ◽  
Drilling Rig ◽  
Pumping Stations ◽  
Hydraulic Station ◽  
Scheme Selection ◽  
And Control

This article describes the design process of pumping stations of crawler full hydraulic drilling rig. The principle of full hydraulic drilling rig pumping station,scheme selection, hydraulic components selection and structural design of the tank were presented. The system used double loops in which some advanced hydraulic components and control technique were adopt.

Establishment of an experimental-computational framework for promoting Project-based learning for vibrations and controls education

2020 ◽  
pp. 030641902095025
Author(s):  
Yucheng Liu ◽  
Silas Whitaker ◽  
Connor Hayes ◽  
Jared Logsdon ◽  
Logan McAfee ◽  
...  
Keyword(s):  
Control Systems ◽  
Computational Study ◽  
Software Tool ◽  
Project Based Learning ◽  
State University ◽  
Computational Framework ◽  
Matlab Simulink ◽  
Computer Lab ◽  
And Control ◽  
Excitation Model

A curriculum enhancement project of embedding MATLAB and Simulink to a mechanical engineering (ME) vibrations and controls course is presented in this paper. MATLAB/Simulink is a popular software tool for vibration analysts and control designers, which is consistently regarded as one of the most in-demand technical skills that employers are looking for. In the past, the ME students at Mississippi State University (MSU) did not have the training opportunity to use MATLAB/Simulink for design and analysis of vibration and control systems. With the support of a teaching grants, the author created an experimental lab section to ask students to design and build vibration and control devices, and integrated these device into his vibrations and controls course. In this study, the author develops a computer lab section based on the implementation of MATLAB/Simulink, which complements with the experimental lab section to provide the students with a full lab experience. The experimental-computational lab allows the students to not only observe and characterize the dynamic response of vibration and control systems through experimental operations and measurements, but also validate experimental results and confirm experimental phenomena through computational analysis. As well as exploring dynamic behaviors of the systems in a variety of conditions through numerical simulations with different settings. An example of student project is presented to show an experimental-computational study conducted by a student team using MATLAB/Simulink software tool and self-developed data acquisition systems based on a base excitation model demonstrated in class. A questionnaire was conducted at the end of that class and results confirms that the implementation of MATLAB/Simulink into the course effectively develops the ME students’ programming skills and strengthens their capacity in modeling, simulating, and analyzing vibration, control, and other dynamic systems. The developed computational lab and the current experimental lab complementarily promote student understanding of principles and concepts conveyed in classroom lectures.

Integrated Design of Airborne Radar Servo System Based on MATLAB/SIMULINK

2011 ◽  
Vol 204-210 ◽  
pp. 17-20
Author(s):  
Ding Zhen Li ◽  
Rui Min Jin
Keyword(s):  
Optimization Model ◽  
Electromechanical Coupling ◽  
Integrated Design ◽  
Control Design ◽  
Servo System ◽  
Coupling Model ◽  
Transmission System ◽  
Airborne Radar ◽  
Matlab Simulink ◽  
And Control

This thesis is according to the pitching part of airborne radar servo system. The electromechanical coupling model and optimization model which includes structure parameters and control parameters are built up based on model of mechanism transmission system and electricity control system. The dynamics model of mechanism transmission system includes the nonlinearity of backlash and is considered the influence of parameters for dynamics properties in structure of the mechanism transmission system. The method of integrated structure and control design is applied on the optimization model using GA. Simulation is done based on MATLAB/SIMULINK. Simulation results show that the method of integrated structure and control design is feasible and effective in servo system.

DESIGN AND ANALYSIS OF FLC AND FEEDBACK CONTROL FOR THREE FINGER GRIPPER SYSTEM

2016 ◽  
Vol 78 (10-4) ◽  
Author(s):  
Nor Anis Aneza Lokman ◽  
Hamzah Ahmad ◽  
Mohd Razali Daud
Keyword(s):  
Fuzzy Logic ◽  
Feedback Control ◽  
System Performance ◽  
Fuzzy Membership ◽  
Logic Design ◽  
Matlab Simulink ◽  
Good Grasp ◽  
Research Findings ◽  
And Control

This paper presents the fuzzy logic design and control for three finger gripper system to grasp an object. Two objectives are mainly considered in this work, which are the analysis of different membership types and the gripper performance with feedback and without feedback control to support current research findings. The comparison is also including different number of rules analysis as well as the fuzzy membership types. The simulation and analysis are carried by using MATLAB Simulink and SimMechanics toolboxes to analyze the system performance. The result shows that the gripper system with trapezoidal memberships achieved faster response and good grasp. Besides that, the proposed system with feedback has produced the best result to grasp the object with suitable torques and angles in comparison to the non-feedback gripper system.

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