PSI - Issue 27

Bernardus Plasenta Previo Caesar et al. / Procedia Structural Integrity 27 (2020) 117–124 Caesar et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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1.5. Detailed design The detailed design contains parts besides linear drive or linear guide parts. There is a safety sensor from Keyence to ensure operator safety. Misumi LGR SE2B-400 is a linear guide series that contain rail for 400 mm stroke. The auto-checking hardness machine is covered by a 2 mm metal sheet each side on the frame. The device's name and series are explained in Fig. 3.

B

C D E

G

A

F

H I

J

N M L

K

A: B: C: D: E: F: G:

Safety Sensor Keyence Misumi LGR SE2B-400 Linear Bushing Base Brake Pad Jig Base

H:

Festo Parallel Kit EAMM-U-65-T42 Festo Linear Drive ELGC-BS-KF-60 Festo Linear Drive ELGC-BS-KF Festo Motor EMMB-AS-60-02 Festo Adapter Kit EHAA-D-L2 Festo Linear Guide ELFC-KF-60 Mounting to Frame

I: J:

K: L: M: N:

Festo EGSC-BS-KF-60-75-12P Misumi Linear Bushing MFINS30

Linear Guide Base

Fig. 3. Detailed component assembly.

2. Benchmarking 2.1. Benchmarking with other work

The benchmarking applies Shell Eco-Marathon urban concept chassis in previous work (Hidayat, 2017) with Autodesk Inventor static simulation and manual calculation. This paper will be compared by Autodesk Fusion's current analysis using its' geometry and setting as verification of existing finite element methodology (Caesar et al., 2020). The geometrical design of the Shell Eco-Marathon chassis is shown in Fig. 4.

b

a

Machine

Driver Body

Driver Leg

196.2 N

Support Beam

294.3 N

Main Beam

98.1 N

Fig. 4. (a) Design mode of Shell Eco-Marathon chassis (Hidayat, 2017), and (b) Loads distribution of the Shell Eco-Marathon chassis.

The geometry of chassis in Fig. 4 (a) applies a square hollow with 6061 series of aluminum material. The total dimension of the chassis is 2060 x 600 mm, consisting of 2 aluminum 40 x 40 aluminum main beam and 7 aluminum 25 x 25 aluminum support beam. The results of the comparison between current analysis and previous work have shown in Tables 1 and 2. Simulation preparation in Fig. 4. (b) depicts the load distribution on each part of the support beam (Hidayat, 2017; Caesar et al., 2020). The results simulation shows 3 outputs: maximum stress (MPa), displacement (mm), and safety factor.