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All Journal Jurnal Teknik Mesin Jurnal Optimasi Sistem Industri The Jurnal Arsip Rekayasa Sipil dan Perencanaan (Journal of Archive in Civil Engineering and Planning) Indonesian Journal of Chemistry Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL CRANKSHAFT Journal of Applied Engineering and Technological Science (JAETS) Jurnal Pengabdian Masyarakat: Darma Bakti Teuku Umar Marine Kreatif Aceh International Journal of Science and Technology Prosiding Seminar Nasional Teknik UISU (SEMNASTEK) Jurnal Polimesin
Iskandar Hasanuddin
Department Of Mechanical & Industrial Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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PENGARUH SISTEM KERJA TIDAK ERGONOMIS TERHADAP POSTUR TUBUH NELAYAN Meri Andriani; Samsul Rizal; Hamdani Hamdani; Iskandar Hasanuddin; Safrizal Rahman
Prosiding Seminar Nasional Teknik UISU (SEMNASTEK) SEMNASTEK UISU 2023
Publisher : Fakultas Teknik Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (304.675 KB)

Abstract

Sistem kerja yang tidak ergonomis membawa dampak produktivitas menurun, seperti postur kerja tidak ergonomis. Postur kerja yang tidak ergonomis juga terlihat pada pekerjaan manual yang dilakukan nelayan. Pekerjaan nelayan pada penelitian kali inidibatasi pada pekerjaan menarik jaring yang penuh terisi ikan. Tujuan penelitian yaitu menentukan postur kerja tidak ergonomis serta menentukan level resiko tindakannya. Metode yang dipergunakan adalah Rapid Entire Body Assissment (REBA). Hasil dan Pembahasan, penilaian REBA dibagi dua grup. Grup A, pada postur bagian batang tubuh terdapat skor tertinggi yakni skor empat di dapat dari enam operator yaitu operator 1, 4, 8, 9, 12, 13, pada postur bagian leher ada enam operator yang mempunyai skor tertinggi yaitu operator 2, 5, 9, 10, 12, 13. Postur bagian kaki terdapat tiga operator yang mempunyai skor tertinggi yaitu operator 6, 7, 12. Pada Beban, setiap operator mempunyai skor tinggi. Grup B, skor tertinggi postur lengan atas terdapat pada operator nomor 12. Pada postur bagian lengan bawah skor tertinggi ditemukan pada operator 13. Pada postur bagian pergelangan tangan, skor tertinggi ada tiga operator yaitu operator 2, 5 dan 9. Seluruh operator mempunyai pegangan dengan skor yang tertinggi. Kesimpulan,  Grup A, postur kerja yang tidak ergonomis ditentukan dari skor tertinggi setiap bagian yaitu pada postur bagian batang tubuh ada enam operator yang mempnuyai skor tertinggi nilai 4, postur bagian leher terdapat enam operator yang mempunyai skor tertinggi yang bernilai 2, postur bagian kaki terdapat tiga operator yang mempunyai skor tertinggi nilai 3, sementara untuk beban seluruh operator mempunyai skor tertinggi. Grup B, postur bagian lengan atas terdapat satu operator yang mempunyai skor tertinggi nilai 4, postur bagian lengan bawah juga hanya terdapat satu operator skor tertinggi nilai 2, postur bagian pergelangan tangan terdapat tiga operator mendapatkan skor tertinggi nilai 3, sementara untuk pegangan seluruh operator mendapatkan skot tertinggi. Level resiko tindakan seluruh operator dibagi atas dua level resiko tindakan yaitu level resiko tinggi dengan tindakan segera ditentukan untuk operator 5, 6, 8, 11. Sementara untuk level resiko sangat tinggi dengan Tindakan sekarang juga ditentukan untuk operator 1, 2, 3, 4, 7, 9, 10, 12, 13. 
Musculoskeletal Disorders Risk Levels in Tofu Workers in North Aceh: An Ergonomic Assessment Cut Ita Erliana; Iskandar Hasanuddin; Yuwaldi Away; Raja Ariffin Raja Ghazilla
Journal of Applied Engineering and Technological Science (JAETS) Vol. 5 No. 1 (2023): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v5i1.2396

Abstract

Tofu is a soy-based food that is popular in Indonesia. One of the supporting factors is that it has high nutritional value and low price. Tofu is produced by micro, small, and medium enterprises (MSMEs) in all provinces in Indonesia, including in the region of Aceh. Based on the results of observations, the tofu production process still predominantly uses human labor, starting from the washing process to the cutting process. This activity is carried out every day with a high repetition rate. If this is allowed to happen for a long time, workers will be exposed to the risk of musculoskeletal disorders. This study uses the Cornell Musculoskeletal Disorders (CMDQ) questionnaire to assess the workers' work posture and determine the level of occupational hazard risk using the Rapid Entire Body Assessment (REBA) method. The results of the distribution of questionnaires show that the body parts that experienced pain complaints were the shoulder (right dan left), upper back, upper arm (right and left), lower back, forearm (right and left), also wrist (right and left). It happens in the filtering process. The results of the assessment of work posture with the REBA method show the score of work posture in the filtering process is 13, which means that the filtering posture of workers has a very high risk and must be improved immediately.  The present research recommended additional intervention that includes engineering and administrative control methods for reducing those workers' complaints of muscle pain.
PKM PERBAIKAN KEHIDUPAN PEMULUNG UNTUK MENINGKATKAN PENDAPATAN MELALUI PEMANFAATAN SUMBER DAYA ALAM Meri Andriani; Iskandar Hasanuddin; Suri Purnama Febri
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 12 (2023): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i12.4502-4510

Abstract

Desa Kuala Pusong Kapal dengan luas 188,49 km2 mempunyai 611 jiwa jumlah penduduk. Hampir 80% Kepala Keluarga bekerja sebagai Nelayan, selebihnya Mereka tidak tahan dengan mabuk laut, sehingga bekerja sebagai pemulung, termasuk Mitra. Tim Pengabdi menemukan tiga permasalahan pada Mitra yaitu bidang produksi, Mitra tidak tahu memberdayakan sumber daya alam di daerahnya, Mitra tidak mempunyai ide dan modal dalam membuka usaha. Bidang manajemen, Mitra tidak tahu mengatur perencanaan produksi, Bidang Pemasaran, Mitra tidak tahu membuat kemasan dan   cara memasarkan produk. Tujuan pengabdian pada bidang Produksi, yaitu memberdayakan sumber daya alam yang ada yakni biji pohon manggrove dibuat menjadi kopi mangrove, ikan yang dibuat menjadi kerupuk ikan, memberikan modal, baik dari bahan baku diawal maupun alat/mesin yang ergonomis. Sosialisasi dilakukan kepada Mitra dalam penggunaan alat/mesin. Ada beberapa pelatihan diberikan mulai dari pada bagian produksi sampai pemasaran. Hasil yang dicapai yaitu bidang produksi, pendapatan meningkat (80%), pengetahuan meningkat (100%), keterampilan meningkat (100%), memproduksi kopi manggrove (85%), memproduksi kerupuk ikan (100%), alat/mesin dapat berproduksi 200 bungkus kopi manggrove dan 250 kerupuk ikan (100%). Target bidang manajemen keterampilan mengatur pembagian tugas  dan mengatur perencanaan produksi  meningkat (85%). Target bidang pemasaran, pengetahuan Mitra membuat kemasan meningkat  (85%), melayani konsumen tatap muka dan marketplace minimal 5 orang perbulan (85%).
The development of a wearable device for Sign Language Gesture Recognition (SLGR) by using Conceptual Design Approach (CDA) Sarika Zuhri; Syahriza Syahriza; Teuku Andhika Malik Rahman; Rizki Agam Syahputra; Iskandar Hasanuddin
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.3744

Abstract

In recent years, there has been a significant focus on researching and developing Sign Language Gesture Recognition (SLGR) for people with hearing and speaking impairments. This is especially important in Indonesia, where there are approximately two million people with these disabilities. However, current research and developments on SLGR devices are specifically designed to understand only particular sign language systems, such as Korean Standard Sign Language (KSDSL) and American Sign Language (ASL), each of which has its unique gestures and models. As a result, no device has been developed to recognize the gestures of the Indonesian sign language system, known as Sistem Isyarat Bahasa Indonesia (SIBI). Therefore, this study aims to develop an SLGR device that can recognize and translate SIBI gestures into output images via text and speech. The development of the SLGR device in this study is conducted by using the Conceptual Design Approach (CDA) methodology. Where in this case, previous research on SLGR devices is first observed as a benchmark for comparison. Furthermore, the benchmark is used as the basis for the function, sub-function, and specification of the proposed design. Based on these stages of benchmarking and concept development, the study concluded that the final design of the proposed SLGR device is constructed by using 5 flex and Gyroscope sensors connected wirelessly to the Raspberry microcontroller. The device is equipped with a voice system and LCR RPi as the output system for translation. Based on the combination of these sensors, the device is able to identify any particular gestures that correspond to words and phrases in SIBI and translate them into speech via the designated speaker and text display on the LCD screen. To fully understand the performance of the device, experimental tests are conducted by analyzing the input of 26 alphabets in the SIBI system. As a result, the device demonstrated an average of 92% accuracy to convert sign language into voice and text, which demonstrates the usefulness of the proposed device
Optimization process of the truss structure using Finite Element Analysis: Step by step from 2D to 3D space Arhami Arhami; Iskandar Hasanuddin; Masri Masri
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.3933

Abstract

This paper discusses the process of optimizing the truss structure step by step from 2D to 3D space using finite element analysis. This step-by-step optimization process is carried out to simplify the analysis of truss structures from simple to more complex cases. Optimization aims to obtain the minimum cross-sectional area and weight for each truss member. The stages of the optimization process carried out in this study are starting from a 2-dimensional (2D) truss structure with several two and five members to a 3-dimensional (3D) one-level tower with a total of 18 members. The optimum criterion as the constraint used is the full stress design method and the value of the cross-sectional area and weight of the structure as a result of optimization, leading to convergence during the iteration process. The tool used to run the iteration process is performed using Fortran software. The results of this optimization process are the total cross-sectional area (A) and a minimum of weight (W), that is, for a two-member truss A = 1 in2 and W = 4 lb, for a five-member truss A = 3.48 in2 and W = 14 lb. Furthermore, for a one-level of tower-space truss with a total of 18 elements, A = 57.91 in2 is obtained and the optimum weight of the truss structure is W = 134.02 lb. From these results, it can be seen that the optimization process that starts from simple to complex cases can be carried out easily and still takes into account the existing constraints
Melinjo fruit outer skin peeler prototype design using grate roller based-on auto reverse movement control Yunidar Yunidar; Riska Sufina; Alfa Tirta Mufti; Melinda Melinda; Iskandar Hasanuddin
Jurnal Polimesin Vol 21, No 6 (2023): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i6.4160

Abstract

Cracker snacks made from melinjo fruit are often found in the Pidie Regency area, Aceh. However, processing melinjo seeds into crackers is still manual and takes a long time. In this research, a melinjo peeling machine will be designed to speed up the production process of melinjo crackers. This peeler uses two different electricity sources so it can work in two conditions, namely the PLN electricity supply is on or off. The research method was carried out by collecting data from device testing results and field observations as well as comparing test results with previous research. The movement of the motor is controlled using Time Delay which gives a command to activate the relay and then turns on the 12 V DC motor. The motor rotates clockwise and anti-clockwise continuously (auto reverse) according to the direction of positive and negative potential which is controlled by the relay and Time Delay. The success rate of peeling the outer skin of melinjo seeds using the proposed tool is divided into three types based on differences in seed skin color. The percentage of success for red, orange, and yellowish green melinjo was 68.67%, 51.52% and 25.61% respectively. Thus, in this study, it can be concluded that the most efficient success rate is for red melinjo
Analyzing the Vibration Exposure to the Safety and Health at Workplace: A Case in the Urea Granulation Unit of the Fertilizer Factory Muhammad Taufiq; Iskandar Hasanuddin; Mohd Iqbal; Friesca Erwan
Jurnal Optimasi Sistem Industri Vol. 20 No. 2 (2021): Published in October 2021
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v20.n2.p115-124.2021

Abstract

This study aims to evaluate the vibration exposure experienced by workers in the Urea Granulation Screen Unit (UGSU) at the fertilizer factory in Aceh, Indonesia. This study involved 30 labors in charge as operators, mechanical maintenance officers, electrical maintenance officers, instrument maintenance officers, and inspectors. The measurement of vibration was carried out using a Triaxial Accelerometer with Integral Magnet and shows that the vibration exposure on the factory floor of the urea granulation screen unit occurs vertically with a minimum value of 0.298 m/s2 and a maximum of 1.630 m/s2. According to ISO 2631-1:1997, the maximum vibration values that occur are categorized as a likely health risk zone and result in uncomfortable reactions to the workers. Furthermore, this study analyzes the effect of vibrations on musculoskeletal problems using a Nordic Body Map (NBM) questionnaire. It reveals that the average score of musculoskeletal complaints is 71.6, which defines a high degree of pain. The results of the NBM questionnaire also showed that the vulnerable part of the body which experienced musculoskeletal complaints is the knee. The result of vibration exposure on this body part shows the highest value of 3.437 m/s2. To minimize occupational diseases and accidents, it is necessary to manage a working system that takes into account legal standards, ideal working time, and working shifts in the work area.
PKM PERBAIKAN KEHIDUPAN PEMULUNG UNTUK MENINGKATKAN PENDAPATAN MELALUI PEMANFAATAN SUMBER DAYA ALAM Meri Andriani; Iskandar Hasanuddin; Suri Purnama Febri
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 12 (2023): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i12.4502-4510

Abstract

Desa Kuala Pusong Kapal dengan luas 188,49 km2 mempunyai 611 jiwa jumlah penduduk. Hampir 80% Kepala Keluarga bekerja sebagai Nelayan, selebihnya Mereka tidak tahan dengan mabuk laut, sehingga bekerja sebagai pemulung, termasuk Mitra. Tim Pengabdi menemukan tiga permasalahan pada Mitra yaitu bidang produksi, Mitra tidak tahu memberdayakan sumber daya alam di daerahnya, Mitra tidak mempunyai ide dan modal dalam membuka usaha. Bidang manajemen, Mitra tidak tahu mengatur perencanaan produksi, Bidang Pemasaran, Mitra tidak tahu membuat kemasan dan   cara memasarkan produk. Tujuan pengabdian pada bidang Produksi, yaitu memberdayakan sumber daya alam yang ada yakni biji pohon manggrove dibuat menjadi kopi mangrove, ikan yang dibuat menjadi kerupuk ikan, memberikan modal, baik dari bahan baku diawal maupun alat/mesin yang ergonomis. Sosialisasi dilakukan kepada Mitra dalam penggunaan alat/mesin. Ada beberapa pelatihan diberikan mulai dari pada bagian produksi sampai pemasaran. Hasil yang dicapai yaitu bidang produksi, pendapatan meningkat (80%), pengetahuan meningkat (100%), keterampilan meningkat (100%), memproduksi kopi manggrove (85%), memproduksi kerupuk ikan (100%), alat/mesin dapat berproduksi 200 bungkus kopi manggrove dan 250 kerupuk ikan (100%). Target bidang manajemen keterampilan mengatur pembagian tugas  dan mengatur perencanaan produksi  meningkat (85%). Target bidang pemasaran, pengetahuan Mitra membuat kemasan meningkat  (85%), melayani konsumen tatap muka dan marketplace minimal 5 orang perbulan (85%).
Pengabdian Kepada Masyarakat Dengan Pendekatan Bakti Sosial dan Pelaksanaan Pelatihan Secara Berkelanjutan Sri Rahmawati; Didi Asmadi; Andriansyah Andriansyah; Medyan Riza; Iskandar Hasanuddin; Hidayaturrahmi Hidayaturrahmi
Jurnal Pengabdian Masyarakat: Darma Bakti Teuku Umar Vol 4, No 1 (2022): Januari-Juni
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/baktiku.v4i1.3939

Abstract

Aceh merupakan salah satu provinsi yang masih terus bergelut dengan masalah kesenjangan ekonomi. Masih banyak masyarakat Aceh yang bekerja sebagai buruh harian dengan pendapatan yang minim dan kondisi kekurangan pengetahuan untuk pengelolaan sumber daya. Hal ini terus meningkat kala kondisi Aceh atau suatu daerah tertentu dihadapi dengan kondisi-kondisi bencana alam yang membatasi perputaran ekonomi dan kelancaran aktifitas normal harian seperti kondisi oleh pandemi covid-19 dan bencana alam. Untuk mendukung upaya dalam membantu masyarakat kecil yang terdampak ekonomi maka diperlukan peran akademisi, mahasiswa, masyarakat lainnya untuk bersama-sama membantu menyelesaikan masalah yang ada disekitar salah staunya dengan mengadakan bakti sosial dan pelaksanaan pelatihan secara berkelanjutan. Tujuan dari kegiatan ini adalah untuk membantu masyarakat, membangun rasa empati antar sesama dan membantu meningkatkan pengetahuan untuk pengelolaan sumber daya. Hasil yang diperoleh adalah penyaluran bakti sosial yang disalurkan tepat sasaran dan pengadaan pelatihan atau kunjungan relawan yang dilakukan akan bersifat berkelanjutan.  Kata Kunci: Ekonomi, bakti sosial, covid-19, bencana alam.
Design and implementation of a state feedback controller for enhanced speed stability of permanent magnet DC motors under load variations Mahdi Syukri; Rakhmad Syafutra Lubis; Melinda Melinda; Muhammad Hakkan Syukur; Iskandar Hasanuddin; Muhammad Irwanto
Jurnal Polimesin Vol 24, No 2 (2026): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i2.8379

Abstract

This study presents the design and simulation of a State Feedback Controller (SFC) for speed regulation of a Permanent-Magnet DC (PMDC) motor using a state-space modeling approach. The objective is to achieve stable and accurate speed control under dynamic load disturbances that typically degrade the performance of conventional open-loop systems. The Direct Current (DC) motor is modeled in state-space form, with armature current and angular speed selected as the main system states. Controller gains are designed using the pole placement method to ensure fast response and improved stability. The proposed SFC is evaluated through MATLAB®/Simulink® simulations by examining motor speed, armature current, and input voltage responses under step-load variations. Simulation results show that the SFC maintains the motor speed at the reference value of 3,430 rpm even during sudden load increases, whereas the uncontrolled motor experiences significant speed drops and oscillations. Performance analysis confirms notable improvements in transient response. The rise time is reduced from 1.1864 s to 0.4220 s, and the settling time decreases from 2.1132 s to 0.7517 s, indicating faster and more stable system behavior. In addition, smoother current transitions and more efficient voltage regulation are achieved compared to the open-loop configuration. Overall, the results demonstrate that state-space control using pole placement provides a robust and responsive alternative to conventional PID controllers for DC motor speed control under load disturbances. Future work will focus on experimental validation and the exploration of advanced control strategies such as Linear Quadratic Regulation and adaptive control.
Co-Authors Adhitya Pahlefi Akhyar Akhyar Akram Tamlicha Alfatirta Mufti andriansyah, andriansyah ARHAMI Asmadi, Didi Cut Ita Erliana Faris Ahmad Mizanus Sabri Friesca Erwan Friesca Erwan Hamdani Umar Hasan Yudie Sastra Hendra Gunawan Hidayaturrahmi, Hidayaturrahmi Husaini Husaini Ichsan Setiawan Ilyas Ilyas Kamil, Syahiir Lulusi Lulusi M. Nizar Machmud Mahdi Syukri Masri Masri Medyan Riza Melinda Melinda Meri Andriani Meri Andriani Mohd Iqbal Mohd. Iqbal Muhammad Asyraf Muhammad Haiqal Muhammad Hakkan Syukur Muhammad Irwanto Muhammad Rizal Muhammad Tadjuddin Muhammad Taufiq Muhammad Zulfri Muttaqin Hasan Nazaruddin Nazaruddin Nur Izzaty Nurdin Ali Rahmawati, Sri Raihan Dara Lufika Raja Ariffin Raja Ghazilla Raja Arifin Ghazilla Rakhmad Syafutra Lubis Riska Sufina Riski Arifin Rizal, Samsul Rizki Agam Syahputra S.Pd. M Kes I Ketut Sudiana . Sabri Sabri Safrizal Rahman Salis Haikal Sarwo Edhy Sofyan Sentia, Prima Denny Sofyan Sofyan Sri Mulyati SUPARNO . Suri Purnama Febri Syahriza Syahriza Syarifah Meurah Yuni Taufan Arif Adlie Taufiq Saidi Teuku Andhika Malik Rahman Wirahman Salvana Yunidar Yunidar Yuwaldi Away Zahra Amalia Zainal Arif Zuhri, Sarika