ME7732: Mechatronic Design and Automation - Mechanisms Design, Simulation & Analysis - Engineering Assignment Help

Assignment Task:

Task:

Module Learning Outcomes
The following module learning outcomes and professional body learning outcomes are tested in this assessment:

 Demonstrate through examples understanding of mechatronics systems and their application in automation.
 Apply design process, enumeration to mechanical mechanisms such as automotive, 2 robotics etc. and analysis of their structural characteristics.
 Use specialized software to analyze, simulate and develop real time implementation of the designed mechanisms.

Assessment task and specific terms
The aim of this assignment is to extend your ability to apply analytical techniques and software to analyze, simulate and develop real implementation of the designed mechanisms Submission Requirements:

 This is an individual assignment and each student will submit the solution of the assignment through CANVAS with font size of Arial 11 point and appropriate margins and 1 line spacing. Layout Format: Academic style. References Style Harvard and Vancouver. There is no maximum number of images and diagrams. Use equation editor in Microsoft Word or LATEX for writing the report.

This assignment worth 50% of the overall assessment for this module. Typical hours required by each student to complete this assignment is 50 hours.

A. TASK 1
The small welding two-link planar manipulator shown in Figure 1 welds a structure in an automotive production line. The arm OA is pivoted to a fixed point at O and to the arm AB at A. The angles 1? and 2? are controlled such that the end-effector (welding electrode) B moves on a straight line path from (0.3m,0.0m) to (0.0m,0.3m) with constant velocity v=2 m/s. The lengths of the arms are OA=0.3 m and AB=0.2 m.

1. Use MATLAB to find:
i) The angles 1? and 2? . (8 marks)
ii) The angular velocities of arms OA and AB. (8 marks)

2. Use NX to simulate the manipulator, then compare between MATLAB results and NX results.

B. TASK 2

In the four-bar planar mechanism shown in Figure 2 the crank AB is driven by a motor with a torque T m at constant angular velocity ? 1 = 100 rad/s, the follower CD carries a load torque T l , assume T l = 0 N.m. The four-bar mechanism parameters
are:
r 1 =10mm, r 2 =35mm, r 3 =20mm, r 4 =30mm
r G1 = 5mm, r G2 =17.5mm, r G3 =10mm
m 1 = 0.2Kg, m 2 = 0.6Kg, m 3 = 0.4Kg
I G1 =1.0x10 -5 Kg.m 2 , I G2 =4.0x10 -4 Kg.m 2 , I G3 = 8.0x10 -5 Kg.m 2

1. Use MATLAB to find:
i) The motor torque T m . (7 marks)
ii) Forces at the joints A, B, C, and D. (16 marks)

2. Use NX to simulate the four-bar mechanism, then compare between MATLAB results and

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