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IMPROVEMENT OF UAEU MULTI-TERRAIN VEHICLE Graduation Project (II) Course

IMPROVEMENT OF UAEU MULTI-TERRAIN VEHICLE Graduation Project (II) Course Graduation Project Code: ME1-5 By: Mariam Nuaimi 200202942 Maitha Mazrouei 200202909 Fatima Al-Dhaheri 200202649 Project Advisor: Dr. Tamer Shahin. U nited A rab E mirates U niversity

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IMPROVEMENT OF UAEU MULTI-TERRAIN VEHICLE Graduation Project (II) Course

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  1. IMPROVEMENT OF UAEU MULTI-TERRAIN VEHICLE Graduation Project (II) Course • Graduation Project Code: ME1-5 By: • Mariam Nuaimi 200202942 • Maitha Mazrouei 200202909 • Fatima Al-Dhaheri 200202649 • Project Advisor: • Dr. Tamer Shahin • United Arab Emirates University • College of Engineering

  2. Outlines Slide 2 • About the project • Tasks in progress: • Manufacturing the Chassis. • Electrical Components • programming tool • Design Analysis ( Pro Mechanica ) • Conclusion

  3. Introduction UAEU Multi-terrain Vehicle The UAEU multi-terrain vehicle was designed to give information to geologists, experts and scientists in their areas.

  4. UAEU Multi-terrain Vehicle Introduction • This vehicle can be used in hazard areas that humans can’t access like chemical pollution and military areas. • The vehicle can be controlled easily by using a computer.

  5. UAEU Multi-terrain Vehicle Introduction

  6. IntroductionObjectives • In order of priority, here were the objectives: • In this project we mainly focused on how to improve the UAEU multi-terrain vehicle. So we have made continual improvement on the drive system, power transmission system, the power source and the design of the vehicle.

  7. IntroductionObjectives 2. link the academic study with the practical life

  8. Introduction About the project The aim of the project is to modify the UAEU multi-terrain vehicle and to develop an improved and wireless version of the current product by using formal design. Slide 8

  9. Review GPI Existing Design Interpretation Weakness Point

  10. Existing Design Interpretation • Vehicle Assembly Flow Chart More Detail Components • How components • fitted together. Function Slide: 10

  11. Weakness Point • At the end, we can classify the weakness point into four important points: • The wheel’s size • The weight of the chassis • The power source • Uses wired control

  12. GPII Plan

  13. Design Analysis • Finite Element Analysis (FEA) consists of a computer model of a material or design that is stressed and analyzed for specific results. • These analyses are used to understand and improve the mechanical performance of a design. • The improvements may include changing the dimension or changing the thickness of the material.

  14. Design Analysis • The SolidWorks application is mechanical design automation software it is one of the best software programs help to know the distribution of the stress on the machines parts. • The analysis will include the stress von Mises and displacement analyses.

  15. Design Analysis Step 1: Setting options Start the work by select the unit which will be apply for the analysis system. Step 2:Assigning Material COSMOSXpress assigns Alloy Aluminum to the part and the text "current material: Alloy Aluminum " appears in the screen.

  16. Design Analysis Step 3: Applying Restraints Restraint tab: information on how the part is supported. Our vehicle is fixed on its two sides. Step 4: Applying Restraints Total Load = 81.91 N

  17. Design Analysis Step 5: Analyzing the Model and Viewing Results: The minimum factor of safety of the model approximately as 3.924 which means that the model is not expected to fail under the specified loads and restraints.

  18. Design Analysis Step 5: Analyzing the Model and Viewing Results: Yield Stress= 2.757 x 10^7 (N/m^2) Maximum Stress= 7.028 x10^6 (N/m^2)

  19. Design Analysis Step 5: Analyzing the Model and Viewing Results: Displacement : 7.429 x10^-2 mm

  20. Finished Tasks • Motor Selection • Parameters: • Velocity = .5 m/s • Time = 2 s A Case “A”: Acceleration = Velocity / Time Acceleration= .25 m/s2 B Case “B”: Acceleration = g sin Acceleration = 4.9m/s2 Slide 23

  21. Finished Tasks • Motor Selection • The calculation R T = F*R Slide 24

  22. Finished Tasks • Motor Selection • Specifications: • Voltage Rating = 4V • Current = 4 A • Power = 16 W Slide 25

  23. Task In Progress Manufacturing the Chassis • Prepared and took the measurement of the sheet • Installed the sheet into the cutting machine

  24. Task In Progress Manufacturing the Chassis • Measured the top and bottom side of the sheet and same things done for the left and right side Dimensions: Top & Bottom = 500X300 mm Left & right side = 500X150mm

  25. Task In Progress Manufacturing the Chassis • Cut and trimmed the left and right side

  26. Task In Progress Manufacturing the Chassis • Marked , cut and trimmed the two circles radius of the two circles =75mm

  27. Task In Progress Manufacturing the Chassis • Curved 2.5mm from both sides to fix it with other parts

  28. Task In Progress Manufacturing the Chassis • Same procedures have been done to the top & bottom side without doing the circle

  29. Task In Progress Manufacturing the Chassis • Combined all the components

  30. Task In Progress Serializer WL™ Connection • Electrical Components Bipolar Stepper Motor 2 Servo Motors Bipolar Stepper Controller Input Power= 12 Volts Bluetooth Serial interface Module Slide 33

  31. Task In Progress Programming Tool • Electrical Components Slide 34

  32. Task In Progress Hyper Terminal • Electrical Components Hyperterm Baud, Data Bits, Parity, Stop Bits, and Flow Control Settings Slide 35

  33. Task In Progress Programming Tool • Electrical Components Slide 36

  34. Task In Progress Step Code • Electrical Components Slide 37

  35. Task In Progress • Electrical Components Servo Code Slide 38

  36. Pro-Mechanica Structural Analysis is a multi-discipline Computer Aided Engineering(CAE) tool that analyzes the physical behavior of a model to betterunderstand and improve the mechanical performance of a design. It can be used to directly calculate stresses, deflections, thus to predictthe behavior of the design in the real world. Slide 39

  37. Load Calculation By using Newton's Second Low: F= ma where a = g = 9.81 Slide 40

  38. Analysis by Pro-Mechanica Analysis tool bar Mish Analysis Slide 41

  39. Conclusion • Learned lesson • Finite element software: Pro/ENGINEER Mechanica package • Applied our skill in using programming tool • Chassis manufacturing Slide 42

  40. Conclusion • Tasks in Progress: Design Analysis. Manufacturing the Chassis. programming tool. Slide 43

  41. Thank You

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