Plumis；CubeSat設(shè)計(jì)挑戰(zhàn)提交人：Connor Tinker

Plumis, this CubeSat challenge entry, was designed by a high school Junior named Connor Tinker. Because of the GrabCAD challenge regulatio, it is being submitted by the student's father, Richard Tinker. -Lightest CubeSat ever recorded -Utilizes DMLS or SLS manufacturing processes, and 3 different metal based material optio (Including two never before used on CubeSats) -Modular design with various adjustable mounting holes -Over 900,000 mm^3 of space for test equipment -Can withstand common 60G's created by rocket motor vibe, and up to 150G's with negligible deformatio. -Simple two part body utilizing stock parts, and low cost materials to improve value Plumis is the result of a month of research, and design, put through a collaboration between mechanical and aerospace enginee from The Joh Hopki Univeity Applied Physics Laboratory, and Google, mentoring a high school student puuing mechanical engineering. The name Plumis comes from the latin word for feathe, and reflects this desig groundbreaking innovatio. Plumis is designed to be the worlds lightest CubeSat structure ever made, with a frame weighing in at only 84g. With over 900,000 milimete cubed of storage space, this design allows for researche to safely send large heavy test equipment into the very depths of space at a low cost. The second design objective of Plumis was to make it robust, and environmentally flexible. From the mass equivalence launch load curve, we determined that the largest forces a CubeSat would undergo (due to rocket motor vibe) are 60G's. According to design simulatio, Plumis can withstand these forces with negligible deflectio and only 4.9 MPa of Von Mises Stress at certain frame locatio. As CubeSats become more common, and less expeive, more varieties of research will be performed using these structures. Currently, CubeSats are launched no further than L2 orbit (Lagrangian orbit), for data trafer technology used on research budgets cannot send information across any longer of a range. But, as data technology becomes innovated (with it will, exponentially), researche will want to send their satellites deeper into space, to take new, groundbreaking measurements. Space itself is only 3 Kelvin, or -270 degrees Celsius. Radiation and planetary albedo can make testing environments a cool 25 Kelvin, or -250 degrees Celsius. This mea that in order to innovate, and change the way we design and manufacture CubeSat structures, we must take into account the conditio which our research will later be taken in. FDM, or Fused Deposited Manufacturing, is an amazing, accessible manufacturing technology: But will not work effectively for this design, and may not work for any CubeSat design. FDM relies on the ability to give parts a less than 100% infill, thus creating air pockets. Even at 100% infill, machine incoistencies can give FDM parts small air pockets. In the vacuum of space, these air pockets will be torn apart, fracturing any structure until failure. In addition, FDM traditionally uses plastics only. Very few plastics can withstand cryogenic conditio, and the ones which can are too dee and soft for structural applicatio. Plumis avoids these issues through the use of DMLS, and SLS additive manufacturing. Plumis has the potential to be made of three different materials, (two never before used in CubeSats), all of which can sustain structural integrity in cryogenic conditio. Plumis has two parts, with a set of 4 stock part rails in order to comply with CubeSat design specificatio, while still keeping the price down. The simple design includes a main frame, and a bottom plate. The bottom plate can be removed through 4 metric fastene and National Aerospace Standard (NAS) lock-nuts. All panels of Plumis contain M2, M3, and M4 adjustable mounting capabilities to improve the desig adaptability. Please see the powerpoint presentation in the renderings, or online via google drive. This includes even MORE details about Plumis, how we came to this design solution, and what research we used to back up our decisio. Powerpoint Link: Reminder: This design was created solely by Connor Tinker, under the advice of professional mechanical and aerospace enginee from JHU APL and Google. This design was submitted by Richard Tinker in order to comply with CubeSat design challenge regulatio (Must be 18 yea of age). Connor is a student at River Hill high school with 6 yea of CAD experience. Connor was a student in FIT Robotics for 7 yea, and has been an intern at the Joh Hopki Univeity Applied Physics Laboratory for the past year. At APL. Connor works on projects contracted by the MDA, NASA, and US Navy. Connor is the founder of a non-profit called Thrive, and the foundementor of the Society of Women Enginee (SWE) at APL FIT Tech Challenge Robotics Program. Connor pla to study mechanical and aerospace engineering, and has not yet committed to a school. All comments, suggestio, and updates will be shared with Connor!