The length of each cut is 5 cm minus leg width divided by 2. Over the years i have tuned the helicopter design a bit. Because there is no thrust to produce upward movement, the helicopter will not fly upward, but the spin will reduce the rate of fall by producing lift, resisting the force. Our computational approach allows nonexperts to design, explore, and evaluate a wide range of different multicopters. We designed a set of experiments that allowed us to discover enough about the shape of the response surface to design the winning paper helicoptertwice. Howa paper helicopter made in a minute or so from 8 12 x 11 sheet of paper can be used to teach principles of experimental design including conditions for validity of experimentation, randomization, blocking, the use of factorial and fractional factorial designs, and the management of experimentation. Design of experiments and optimization project paper helicopters1 120312 the objective of this assignment is to investigate four design factors and their influence on flight time of a paper helicopter. The control designers unified interface conduit environment is utilized as. In order to design the experiment we use minitab statistical software 6 which. Validation study of aerodynamic analysis tools for design optimization of helicopter rotors seongim choi. Bring your knowledge and experience forward about helicopter. This section describes an integrated framework including aerodynamics, structure, and manufacturing cost.
Geometric programming for aircraft design optimization warren hoburg. Frequently, the design objective, or cost function cannot be expressed in the form of simple algebra. Design of the paper helicopter emilio lopez april 15, 2018 1 obtaining the helicopter the paper helicopter is a widely used example for training in quality methodologies. The purpose of this paper is to study the conceptual design and optimization of a compound coaxial helicopter. This project, originally developed for introducing students to basic experimental statistics. Computer programs have to be used to carryout the evaluation on the design objective or costs. Lem abstract the course emphasizes theory for response. Cut the paper the length of paper rotor length plus leg length, and add 2 cm for the body.
In order to explore this large design space more effectively while trying to reduce design cycle times, engineers can now take advantage of automated design optimization and simulation software tools. The paper helicopter provides a way to quickly explain basic doe concepts. One of the reasons for choosing a constant speed is linked to free power turbine fpt performance deterioration in off design conditions. Conceptual design for the performance optimization of. To create a fractional factorial design in minitab statistical software, go to doe. Doe is a powerful quality engineering tool that can help managers and engineers. At the conceptual design phase, the compound coaxial helicopter design work was based on the conventional helicopter and fixwing aircraft design method. In the section rotor aerodynamics we considered the aerodynamic aspects of airfoils. Upon completion of all flights 48 tests, enter results on the right side of the l8 array input results in qualitek4 software. Pdf optimization of flight time and distance travelled of a. Reliabilitybased design optimization using efficient global reliability analysis. A fully automated framework for helicopter rotor blades. Having completed my paper helicopter experiment and inputted the information into the minitab 18 software i am slightly worried that two of the categories. Walsh nasa langley research center hampton, virginia 23665 abstract as part of a centerwide activity at nasa langley research center to develop multidisciplinary design procedures by accounting for discipline interactions, a performance design optimization procedure is developed.
Once done, simply fill in the design matrix and print out the pdf with the paper helicopter patterns. The paper helicopter project has been given to graduate students of the french. As part of this effort, the software package, rotorcraft optimization tools rcotools, is being developed to facilitate incorporating key rotorcraft conceptual design. Paper helicopter design optimization experiment design and test overview. Statistical computing and graphics a tool for computing confidence regions. It creates full threedimensional models of aircraft from their parametric cpacs description. Teaching design of experiment and response surface methodology using paper helicopter experiment conference paper pdf available april 20 with 4,736 reads how we measure reads. As the paper models fall they will spin, imitating the rotation of the rotor blades of a helicopter. Probably the single most important rotor design parameter is its liftdrag ratio, which should be as high as possible. Due to its parametric nature, it is typically used for aircraft design analysis and optimization. A helicopter design project is described that combines computational modeling, optimization, design of experiments theory, fabrication, test, and analysis of the results, including statistical analysis. Body length and body width do not appear in the final interaction plot or optimization plot graphs at the final stage. Weide stanford university, stanford, ca 94305 jaina sitaraman national institute of aerospace, hampton, va 23666 the key objectives of this paper are to assess the accuracy and the validity of our.
Teaching engineers experimental design with a paper helicopter. Optimization of flight time and distance travelled of a styrofoam glider. Paper helicopter experimental optimum engineering design. In this paper, multiobjective design of helical gear pair transmission with objective functions namely volume of the small and large helical gear and opposite number of overlap ratio is taken into account. Experimental optimum engineering design is a new undergraduategraduate course developed at the university of florida for combining analytical optimization techniques and design of experiments methods in product design.
Validation study of aerodynamic analysis tools for design. Recently, i attempted to give several engineers a 30second explanation of what design of experiments doe is and what it could do. The stepwise regression feature makes it simple and fast to select the optimal. Performance optimization of helicopter rotor blades by joanne l. In the paper helicopter project, our goal was to use these tools to find the combination of design factors that would maximize flight time. Software for design of experiments using taguchi methods, ibm. Integrated aerodynamics and structure design optimization considering manufacturing cost. A pdf document with a template of the paper helicopter design see fig. You will also need a digital stop watch to record flight time. Efficient global optimization with experimental data. Experimental design is an essential tool for studying complex systems, and it is the only. Design and optimization of helicopter rotor blade using different materials s mohan kumar1. Aerodynamic design optimization of helicopter rotor blades. Finally, we can use the response optimizer to find the combination of factor.
Nov 01, 2015 the paper helicopter template that it included was one of my favorites. You are invited to integrate the project into your own syllabus. Rotor blade design the helicopter and rotorcraft site. Design of experiments and optimization project paper helicopters.
Teaching doe with paper helicopters and minitab minitab. Use the jmp software to perform significance testing on your data and to. The objectives are to show 1 which of the four factors are statistically significant. Revisiting the paper helicopter project using an adaptive. For many complex engineering optimization problems multi objective design optimization methods are used to simplify the design problem. To make the helicopters you will need few plain sheets of paper and scissors. Revisiting the paper helicopter project using an adaptive surrogate. The class ends with each team submitting their best candidate and having a faceoff competition with bragging rights and glow stick glasses as the ultimate prize.
Since the paper models have no motor, they only have one source of lift. Creating a paper helicopter requires a pieces of paper, a few easy cuts, and a few folds. We present an interactive system for computational design, optimization, and fabrication of multicopters. The experiment was conducted to optimize the paper helicopter flight time. This paper outlines the analysis, design, and optimization of the helicopter active control technology hact flight control system hfcs. Optimization of residential roof insulation layer thickness based on economic. The paper describes a design project the design of a paper helicopter for minimum autorotation speed and its usage in the course.
Design of experiments and optimization project paper. Geometric programming for aircraft design optimization. Paper helicopter experimental optimum engineering design classroom problem. Students optimized the helicopter design by optimization programming, software such as matlab, or by analytical means using a suggested twoparameter objective function. Process optimization using response surface methodology. Helicopter design cost minimization using multidisciplinary. The paper helicopter experiment project is an excellent assistant in teaching statistics and linear regression within the experimental design course. This course is taught using matlab, but could be readily adopted to other software packages. The results were what an experienced doe practitioner might expect from such an exercise. Design and optimization of helicopter rotor blade using. After setting the size of the helicopter, the helicopter rotor blade shape optimization process is performed as the next step of the design process. Tigl is an open source geometry modeler that is used in the conceptual and preliminary aircraft and helicopter design phase. The paper describes a design project the design of a paper helicopter for minimum autorotation speed and its usage in the.
Paper helicopter design optimization experiment design and test overview tools for fabrication and testing. Pdf teaching design of experiment and response surface. The design loop is iterated several times using multidisciplinary design techniques like all at once aao and collaborative optimization co approaches. We will, therefore, now look at several rotorblade designs. All inner and outer shapes of rotor blades can be investigated simultaneously in a fully integrated design optimization.
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