Rossi Passarella
Universitas Sriwijaya

Published : 25 Documents
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Journal : Computer Engineering and Applications Journal

LIGHTWEIGHT SOLAR VEHICLE IMPACT ANALYSIS USING ABAQUS/EXPLICIT Passarella, Rossi; Taha, Zahari
Computer Engineering and Applications Journal Vol 1 No 2 (2012)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (474.665 KB) | DOI: 10.18495/comengapp.v1i2.10

Abstract

This paper described the Abaqus/Explicit 6.7 simulation work performed to study the frontal crash impact condition for an in-house designed and produced lightweight solar vehicle main structural body. The structural body was fabricated from aluminum hollow pipes welded together. The analysis is needed to safeguard the safety of the vehicle driver. The dynamic response of the vehicle structure when subjected to frontal impact condition was simulated, according to NASA best practice for crash test methodology. The simulated speed used was based on the NHTSA standard. Comparison of the analysis with the standard Head Injury Criteria (HIC) and Chest Injury Criteria (CIC) revealed that the driver of the designed vehicle would not be risk because the acceleration resultant was found to be lower than 20 G.  The analysis also proved that structural component was able to protect the driver during any frontal collision incident. However, to ensure the safety of the driver, safety precautions such as the use of seatbelt and helmet as well as driving below the speed limit are recommended.DOI: 10.18495/comengapp.12.085096
OBJECT RECONSTRUCTION FROM 2D DRAWING SKETCH TO 3D OBJECT Passarella, Rossi; Arsalan, Osvari
Computer Engineering and Applications Journal Vol 5 No 3 (2016)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (547.997 KB) | DOI: 10.18495/comengapp.v5i3.183

Abstract

Design engineer in the early phase of building up another product is  typically using a freehand sketching to communicate or illustrate the idea in the form of orthographic projection. This orthographic projection is based on viewpoint. A translation from 2D drawing  view point to 3D models is needed to help engineer to imagine the product preview in 3D. This procedure includes a tedious, so that automation is needed. The way to deal with this reproduction issue begin straightforwardly from 2D freehand portraying, by using the camera, the 2D drawing is captured and then transferred to a Personal Computer. Inside the computer, the image is processed with  filtering to find the view point zones. The view point zone than separate to 3 zones, each zone consists of the pixel coordinate. This coordinates are used to generated and processing of 3D voxel Image according to the form of geometries. A case study is presented in order to emphasize and discuss the proposed method
DESIGN CONCEPT OF CONVEXITY DEFECT METHOD ON HAND GESTURES AS PASSWORD DOOR LOCK Passarella, Rossi; Fadli, Muhammad; Sutarno, Sutarno
Computer Engineering and Applications Journal Vol 2 No 3 (2013)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1183.912 KB) | DOI: 10.18495/comengapp.v2i3.32

Abstract

In this paper we purpose a several steps to implement security for locking door by using hand gestures as password. The methods considered as preprocessing image, skin detection and Convexity Defection. The main components of the system are Camera, Personal Computer (PC), Microcontroller and Motor (Lock). Bluetooth communication are applied to communicate between PC and microcontroller to open and lock door used commands character such as â??Oâ? and â??Câ?. The results of this system show that the hand gestures can be measured, identified and quantified consistently.