1. PACE Collaborative Project: Emerging Market Vehicle Transmission Design Team member: Anthony Smith Kevin Scott Decorian Harris Jacque Thornton Advisor: Dr. Xiaobo Peng Department of Mechanical Engineering Prairie View A&M University, Prairie View, Texas

2. Outline Project Goal and Objectives Project Planning Detailed System Design Results Conclusion and Recommendations

3. Goals and Objectives Suitable for an emerging market Inexpensive to produce High fatigue safety factor High strength capacity Ability to handle high torque and horsepower Lightweight Allowance for ample clearance Should operate under extreme conditions GOAL: To develop an efficient transmission/gearbox design to suit the needs of the emerging market vehicle.

4. Constraints on Transmission Length: 300 mm maximum Width: 350 mm maximum Height: 300 mm maximum Weight according to total weight of vehicle.

5. Project Management: Gantt Chart

6. Gear Train: Calculation Equations Minimum Number of Teeth Gear Diameter Number of Revolution Safety Factor Torque Velocity Transmitted Load

7. Design Calculations Using a creditable machine design textbook, calculation for tooth number, safety factors, bending, wear, and stress were done. 7 Tooth Number Minimum [Teeth] Tooth Number Used [Teeth] Diameter of Gear [ in] Revolution of Gears [Rev / min] Safety FactorsGear Ratio Used Gear 2 Gears for 1st Gear 1428430001.713 1.5 Gear 32142620001.421 Gear 4 Gears for 2nd Gear 14314.42930001.817 1.258 Gear 517395.57123851.634 Gear 6 Gears for 3rd Gear 13324.57130001.85 1.88 Gear 715385.42925261.707 Gear 8 Gears for Reverse 15 2.14330001.134 2.067 Gear 929304.28615000.8921 Gear 10 Gears for 4th Gear 1335530001.942 1 Gear 111235530001.942

8. Gear Design & FEA Analysis

9. Shaft Design Reverse shaft Input shaft Output shaft

10. Housing Bottom housing Upper housing

11. Other Major Components Synchronizer Reverse engager shaft Slider for synchronizerSynchronizer engager

12. Other Major Components Bearing gasket Engager shaft Bearing

13. Transmission Assembly

15. Results Design is created to fit constraints. Design was verified by FEA. It is a safe transmission design.

16. Conclusion & Recommendations Developed a successful design Better communication between Universities involved Obtaining up to date software