Page 175 - Robot Design Handbook ROBOCON Malaysia 2019

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Based on what has been calculated above, the acceleration of 243.52 m/s must be
produced by pneumatic so that the Shagai is able to launch to 2 m horizontal displacement.
The initial speed of the pneumatic is 8.37 m/s. After considering the energy loss, air drag,

friction, the pneumatic is not hard to produce 8.37 m/s. Our launching mechanism idea is
not just placing the pneumatic cylinder horizontally but also using the theory of kicking the

ball. The idea of kicking ball is actually kick-started from ROBOCON 2018 shuttlecock

throwing mechanism.
Also, to prove that the calculation really works, TARUC ROBOCON team has also

made some data analysis for the launching Shagai mechanism.

3.0 DATA ANALYSIS

In this data analysis, the launching of the Shagai has been tried for 15 times. To
make the measurement more accurate, the Shagai was lifted up 28 cm from the ground and

the pneumatic system was provided by six bars gas tanks.

Table 2: Data analysis of the launching mechanism for the MR1

20 points 30 50 Passed without hit
Pass with hit
Trials (sheep, goat, points points the wall (sheep the wall (Tilt) Failed
tilt) (Camel) (Horse) and goat)
1 1 0 0 1 0 0
2 0 0 1 1 0 0
3 1 0 0 1 0 0
4 1 0 0 1 0 0
5 1 0 0 0 1 0
6 1 0 0 1 0 0
7 1 0 0 1 0 0
8 1 0 0 1 0 0
9 1 0 0 0 1 0
10 1 0 0 1 0 0
11 0 1 0 1 0 0
12 0 0 1 1 0 0
13 1 0 0 1 0 0
14 1 0 0 1 0 0
15 1 0 0 1 0 0
Total: 12 1 2 13 2 0

Table 3: Passing rate for launching mechanism

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