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MdEmran_HossainBhuiyan_MS_Thesis.pdf (10.13 MB)

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Dynamic Modeling and Analysis of Strain Energy Deployment of an Origami Flasher

Hossain Bhuiyan , Md Emran
http://orcid.org/0000-0003-3177-9152
http://rave.ohiolink.edu/etdc/view?acc_num=toledo1501870672129919

Abstract Details

2017, Master of Science, University of Toledo, Mechanical Engineering.
There are lot of engineering fields where deployable structures are very important. Among them some applications require to develop a structure and deployment mechanism that unfolds from a compact, folded form to a large array. Initially, flexible materials have been explored as a potential solution for deployable structures. While they have some positive aspects, they also have some negative aspects as well. Then, Origami, the Japanese art of paper folding, has been explored as a great source to these engineering designs. Among various origami patterns, the flasher, pattern (an origami base that folds into a 3D structure that can be radially deployed into a 2D surface) has been recognized for its potential application in the deployment of large structures from relatively small volumes. Accurate and practical dynamic models are essential in order to successfully design these deployable structures. In this analysis, a dynamic model of a flasher is created using multibody dynamic (MBD) simulation software. The MBD model is created automatically by a series of scripts that transform a crease pattern into a fully defi ned engineering model. Such a structure can be internally deployed (by smart materials or stored strain energy) or externally (by actuators or inertial forces). This analysis focuses on the strain energy deployment method. The primary focus is to investigate the deployment time, the force and torque distributions throughout the structure, the bending angle of the panels, reaction torque at the center, kinetic energy of the panels, the trajectory of different vertices during the deployment, and the rigid foldability of the flasher pattern. Parametric studies of the flasher pattern were performed in two ways. Initially, the effects of various design parameters like the stiff ness of panel joints, density of panel materials, the edge length of the center polygon, and the thickness of the panel on the dynamic performance were investigated. Parametric studies of various flasher folding patterns were also performed by varying three basic geometric parameters: (1) the number of sides of the center polygon, (2) the number of rings comprising the array, and (3) the number of radially-distributed elements of each ring. In this analysis, the eff ects of these three parameters on the dynamic performance of the flasher are studied using multibody dynamic (MBD) simulation software. As a basis for comparison, all the designs are held to the same surface area in the deployed state. Each MBD model is created automatically by the aforementioned scripts. The primary focus is to investigate the variation of (a) the deployment time, (b) reaction torque at the center of the flasher, (c) force and torque distribution in the entire structure, (d) bending angle of the panels, and (e) rigid foldability as a result of changes in the previously mentioned three basic geometric parameters. The overall e ffort provides insight to force and torque distribution within the structure, which can guide the placement of integrated smart material actuators or similarly compatible actuation system. Reaction torque measurement may help to design holding structure with proper strength. The results also help in flasher design parameter decisions by giving insight into their eff ects on future applications such as star occulter designs, solar arrays, solar reectors, sunshields, smallsat antennas, and solar sails. Furthermore, the method used is general and creates a groundwork for dynamic analysis of other origami structures.
Dr. Brian Trease (Advisor)
Dr. Mohamed Samir Hefzy (Committee Member)
Dr. Lesley Berhan (Committee Member)
94 p.
Mechanical Engineering
Origami Engineering, Flasher pattern, Deployment method, Strain energy deployment

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Citations

  • Hossain Bhuiyan , M. E. (2017). Dynamic Modeling and Analysis of Strain Energy Deployment of an Origami Flasher [Master's thesis, University of Toledo]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1501870672129919

    APA Style (7th edition)

  • Hossain Bhuiyan , Md Emran . Dynamic Modeling and Analysis of Strain Energy Deployment of an Origami Flasher. 2017. University of Toledo, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=toledo1501870672129919.

    MLA Style (8th edition)

  • Hossain Bhuiyan , Md Emran . "Dynamic Modeling and Analysis of Strain Energy Deployment of an Origami Flasher." Master's thesis, University of Toledo, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1501870672129919

    Chicago Manual of Style (17th edition)

toledo1501870672129919
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This open access ETD is published by University of Toledo and OhioLINK.