Jinhao Cui's blog

this week, according to our Gantt chart, we are supposed to finish our CAD design. The reality is we still have a lot to do just on CAD design. Servel new ideas are brought up. But consider the complexity of the structures, these designs are denied. This is the current version we have. and new stress analysis of this structure is modeled.

In these two weeks, I have focused on doing the FEA on the whole structure. Currently, I have a general analysis of the whole structure. I did two analyses, one is taking consideration of future weight will be applied on the bogie. The other one is the steering part. In the future, the part will experience a side moment provided by the guide rail.  The above pictures are the result we have. It has shown few parts that we need to change in the future. once the complete CAD design is finished, I should be able to get more results from the FEA test.

In this week, there are few things on CAD design that I have trouble on designing. These need to be solved on todya's meeting. I have able to run FEA test on two important part. this one is the connection between the bogie and the suspension or cart. Overall the deformation is relative low. and the safety factor is above 1. this is the stop, which help to fix the switch wheel only rotate in a certain region. and the safety factor is greater than 1

this week, I basically finish the phase 2 solidworks design. Next week, I'll need to refine my design and try to run FEA test on several critical part.

This goal of this week is keeping modify the current CAD design. Need to set all the dimensions, materials use. Also, we need to corporate with track team, solar team, and control team. There are still many informations need to gather for these teams. In term of motor use, need to get calculation equation from professor.

In this week, our team basically has a general CAD drawing for the bogie system. There are few things that we can adopt from Futran's design. Such as using a tilted bar connection to increase the grip force. in the next few week, we hope to have a detailed CAD drawing, so that we can work on the FEA test for each part. 

During this week, what I had been focusing on is the general CAD design. There are few obstacles need to be solved. First, dimension is one important part of this whole project, set a detailed dimension can be very helpful in future design. Currently, I have trouble on thickness of the main wheel and motor. other dimension need to confirm with the team is the connection object, which locate between shaft and support plate (for motor and switch wheel). Second, I need to get the new edition Solidworks, so that I can use both school's computer and make edit on my home laptop. Below is the review of my current design.