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All Journal Jurnal Teknik Mesin Indonesia Indonesian Journal of Electrical Engineering and Computer Science METAL : Jurnal Sistem Mekanik dan Termal
Syamsul Huda
Jurusan Teknik Mesin, Universitas Andalas, Padang
Aerospace Engineering Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Sintesis dimensi dan analisis kinematik mekanisme empat batang dengan rantai kinematik RSSR Rahim Isnan Al Hilman; Syamsul Huda; Mulyadi Bur
Jurnal Teknik Mesin Indonesia Vol 11 No 2 (2016): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1192.142 KB) | DOI: 10.36289/jtmi.v11i2.62

Abstract

Spatial four bar linkage mechanism can be applied to transmit rotation from crank to coupler with various orientation of axis rotation. Revolute-spherical-spherical-revolute (RSSR) one of popular configuration of spatial four bar linkage mechanism. The mechanism was compossed of four kinematic constants that shoud be determined to yield specified relationship between input and output displacements. In this paper was carried out the dimensional synthesis of the RSSR mechanism using function generation method with consideration of limitation of spherical joint workingspace and transmision angle. For case study was syntesized the RSSR four bar mechanism where orientation of crank axis rotation is perpendicular to follower axis rotation and the two axes lie on the same plane. The crank was desired to rotate fully cycle and the follower rotate with the span 1800 (0 ≤  ≤ 180o) . It was obtained the otimal dimension of crank, coupler and folower, 5.55, 8.07 and 2.79 units respectivelly. The displacement analysis was applied to evalute performance of the mechanism. The obtained mechanism can perform fully cycle crank rotation and 133.20 span motion of follower and tranmission angle between coupler and follower varies between 38.4o and 101.6o.
Desain Kinematik Alat Pengumpan Material Berbasis Mekanisme Empat Batang Syamsul Huda; Muhammad Jihad Islami; Mulyadi Bur
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 1 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.159 KB) | DOI: 10.25077/metal.3.1.17-28.2019

Abstract

In this paper was studied the design of feeding material system using four bars linkage mechanism. It was carried out dimensional synthesis of the mechanism based on the complex number method. This synthesis is applied to determine the length of crank, coupler, follower and dyad that control of feeding weight. Base on the results, it is obtained that the dimension of the four bars linkage and dyad to control 250 kg weight of feeding material  reprsented by lengths of crank, coupler and follower are 1 m, 2 m, and 1 m rspectively and two links of dyad 0.2 m and 0.75 m. It was also determined the constant of spring to support the opening of the feeding material, 23,18 kN/m  and input torque, 1083 Nm.
Kinematik Forward dan Analisis Kesalahan Pada Kesejajaran Sumbu Join Mekanisme Paralel Rotasi Murni 3-URU Syamsul Huda; Ilham Fahmi; Mulyadi Bur
METAL: Jurnal Sistem Mekanik dan Termal Vol 4, No 1 (2020): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1722.753 KB) | DOI: 10.25077/metal.4.1.33-46.2020

Abstract

In this paper we discussed the forward kinematic and constrain error of 3-URU parallel mechanism. The mechanism was composed of URU kinematic chain consisting of three parallel joint axes and two intersecting joint axes. The direction of parallel joint axis representing direction of force constraints acting on center of platform rotation. In this research was investigated the effect of error of direction of parallel joint exes on kinematic chains to the platform orientation and position of center of platform rotation.  It is also developed the formulation of forward kinematic of the mechanism. The forward kinematic was carried out by taking account geometric constraint of platform motion which is derived analytically by using software Maple 16. On the other hand, the constraint error was evaluated using the CAD simulation Autodesk Inventor. Based on the result, it can be summarized that error of parallel joint axes produced significant effect on error of platform motion especially for location of the center of platform rotation which is classified as uncompensated error. The formulation of forward kinematic was successfully derived which is confirmed with inverse kinematic and CAD simulation. 
Pattern Recognition of Overhead Forehand and Backhand in Badminton Based on the Sign of Local Euler Angle Muhammad Ilhamdi Rusydi; Syamsul Huda; Febdian Rusydi; Muhammad Hadi Sucipto; Minoru Sasaki
Indonesian Journal of Electrical Engineering and Computer Science Vol 2, No 3: June 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v2.i3.pp625-635

Abstract

Studying the badminton skill based on the arm movement is a challenge since the limitation of the sensor such as camera to record the movement parameter. This study proposed a new method to determine the pattern of arm movement for forehand and backhand strokes in badminton based on the sign of the local Euler angle gradient from four points of right arm segments. Each segment was identified by motion sensor attached to the dorsal surface of the hand (sensor 1), wrist (sensor 2), elbow (sensor 3) and shoulder (sensor 4). Three certified coaches participated in this research to determine the arm movement patterns for forehand and backhand strokes. Skills in forehand and backhand strokes from eight professional players and eight amateur players were observed to determine the pattern. The result showed that the local Euler angle can be used to recognize the arm movement pattern. Based on the observed patterns, the professional players had a higher similarity to the coaches’ patterns than those amateur players to the coaches’.
Co-Authors Febdian Rusydi Ilham Fahmi Minoru Sasaki Muhammad Hadi Sucipto Muhammad Jihad Islami Mulyadi Bur Rahim Isnan Al Hilman Rusydi, Muhammad Ilhamdi