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Created BoM for this project divided into 4 categories of engine, airframe, deployment, and auxiliary components.
I have used these past two weeks to get familiar with Ansys Fluent and getting the software to work with my L2 certification rocket. I originally had trouble creating the mesh due to the fins being attached tangentially to the body tube. To fix this, I added a fillet between the fins and the body tube, which allowed for a surface mesh to be made. Another issue I came across was being limited to the amount of nodes (512,000) given in the student version of the software. To counter this issue, I made the wind tunnel as small as I could and increased the size of the individual volume meshes until the the amount of nodes was under the limit. I'm glad I took this moment to get familiar with Ansys Fluent so I can use it for any future projects. I performed these calculations to compare the theoretical calculations to the simulated calculations as well as prove the numbers provided from the motor specifications. Given:
Comparisons
I am using this project to utilize new knowledge about rocketry that I have gained through coursework since getting my L1 Certification last year. First off, I will be designing the rocket in OpenRocket and SolidWorks to obtain an initial design of the rocket. Then, I will use ANSYS to get a flow visualization on the rocket and perform some calculations to prove the specifications of the motor that is provided on OpenRocket.
For this certification I will be abiding by NAR's certification procedures which are as follows:
1) Currently holding a Level 1 High Power Certification 2) Take and pass a HPR Level 2 Written Exam prior to their Level 2 certification flight attempt. The HPR Level 2 Written Exam will help demonstrate their knowledge of the laws and regulations pertaining to high power rocketry. Questions concerning basic rocket technical knowledge, e.g., center of pressure and center of gravity relationships, are also included on the exam. 3) Motors used for certification flight attempts must be currently certified by the NAR, or another organization (Tripoli) with a recognized certification program. 4) Must demonstrate ability to build and fly a rocket containing at least one J, K, L impulse class motor. This project was a workshop in my club where we utilized OpenRocket to design our very own rocket to get L1 Certified. After designing the rocket, I CADed the nosecone, fins, and centering rings in SolidWorks. After the CAD of those components were complete, I 3D printed the nosecone and laser cut the fins and centering rings. Once all the materials were gathered, I assembled the rocket and successfully launched and recovered my rocket to an apogee of 1,800 ft. I received my L1 Certification with the National Association for Rocketry (NAR) on February 19, 2022. This was one of the more rewarding projects I have worked on since it's in the field I'm so passionate about. |
Project GoalsL1 Certification: Utilize software's like OpenRocket and Solidworks to design my rocket, manufacture/construct my rocket, launch and successfully recover my rocket. |