California State University, Long Beach
Mechanical Aerospace Engineering Department
MAE 471/472 Group 12
Problem Statment
Design a cart that is safe, resilient, low-cost, low-weight, and user-friendly. The cart will be resilient by being strong and durable that can perform in multiple environments, extreme temperatures, absorbs impact and safely clears the ground. It will be user friendly by having free spinning wheels and will have a safe and efficient way to slow down and stop the cart. It will be light weight enough to be easily lifted, transported and collapsible. It will be safe enough for the riders, the dogs, and the bystanders. It will be single operant and be able to hold 2 average-weight people while being able to travel at speeds up to 30 mph.
Wednesday, September 25, 2013
Wednesday, September 18, 2013
The Buying Process Begins!
The weekend was very productive with several critical purchases being made. The items purchased were all four wheels/tires and brake assembly. A final base frame will be designed with the following dimensions in consideration.
- Diameter of wheels ~18 in
- Width of wheels with brake assembly ~ 4 in (2.94in wheels only)
- Axel diameter - 15mm
The top portion of the frame is also in the design process with generic lengths (will change with the final dimensions of the base). See below
In the week to come, the team will research the cost of material needed for the entire frame based on our design.
Tuesday, September 17, 2013
Solid Model of A-Arms
Wednesday, September 11, 2013
Critical decisions
This week the team made a few critical decisions. With an updated gantt chart, the team realized they're were behind schedule therefore the following decisions were made.
- Round tuning was thrown out and square tubing was chosen
1.5 x 2 inch - Created a buying list for the following items:
- Wheels
- Brakes
- Tires
- Shock absorber
- Tie-rods
For the coming week, the teams plans to have items on the buying list on order by no later than Monday (Sept 16, 2013)
Wednesday, September 4, 2013
First Meeting of the 2nd Semester
The team met to discuss future plans on the mushing cart's construction as well as revisited the work that was done before the summer. With each individual teammate having a different schedule during the summer, a lot of scheduled items were pushed back. Therefore the team brought up topics that needed to be completed in order to get the building process in motion.
The team decided focus on the items that need to be purchased. A few items that will be purchased are:
The team decided focus on the items that need to be purchased. A few items that will be purchased are:
- Wheels & Tires*
- Disc Brakes*
- Shock Absorbers*
*Items pictured may not be used in the final product.
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