Week 5 7/3 - 7/7

This week was mostly getting a CAD model together of the tilting and anti-roll mechanism. I also had a CAD of the brakes that would be used, but due to the lack of the ability to get brakes, a prototype model is to be created once we get access to bicycle brakes. After coming up with a solid idea for a tilting model, Joey was able to CAD a model of it. I then decided to work on the anti-roll mechanism, which involved finding a strut that would match the dimensions. A CAD model is still in progress and is to be completed by next week. I then looked at ideas to have a small test bed for tilting, and that involved 3D printing small miter gears and have a small test bed with a gyroscope to demonstrate the tilting mechanism. The CAD would represent what our system would look like if implemented on the half-scale system. The parts to fix the bogie are to stated to be finished by next week, depending on how fast the machinist works.

Comments

Post a Comment

Popular posts from this blog

Individual Post Week 3 6/12/17 - 6/16/17

Image
In this week, I worked with Joey on the half scale team getting a test rig to work. Our test rig was the basic overall mechatronics side of things. This included a stepper motor for the steering, and two DC motors for the propulsion. We also got some parts machined for the half scale bogie. Roger, the technician at the ENGR 123 machine shop helped machine some spacers and jackets for the steering shaft. The modified steering shaft and the modified gear were sent to the Central Shop, but the return time around 2+ weeks from the beginning of this week, so assembly of the bogie is going to take a significantly longer amount of time than expected.
Read more

Individual Post Week 1 5/30/17 - 6/2/17

Image
In this intro week, my team and myself were thrust into the previous bogie design from the 2016 - 2017 year. After a brief introduction of what we are to work on, there were somethings that went wrong with the previous year's bogie that needed to be fixed, which includes the bent steering rod at the top of the priority list. Figure 1 Twisted Steering shaft Even though we have taken the majority of the bogie apart the steering shaft remains lodged in the bogie due to several defined constraints that can't be removed. Figure 2 Constrained gearbox The gearbox is held in by a welded plate and press fitted bearings which prevent the gearbox from moving about, but thus creates it extremely difficult to remove.
Read more

Individual Post 7/17-7/21

This week was all about getting the bogie up and running. Joey, Ryan and myself attended a two day training session at the Ansys headquarters to learn about fea and cfd in the ansys fluent software. Due to time constraints, and fea of the suspension and Ryans brake system will be done through solidworks. It will be easier to to and obtaining results would come faster. I was able to fix the second bogie with the parts that finally came from the machinist from San Jose State. There were some problems with the set screws and loctite which set me back a couple of hours, but I was able to get both bogies almost function by the end of thursday. I hope to get both bogies on the track on monday and finally do a test run to see if the modifications to the bogies actually work.
Read more