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I Gede Bawa Susana
Universitas Mataram
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Pengenalan Prinsip Ergonomi dalam Angkat-Angkut Peralatan di Laboratorium Listrik Dasar Jurusan Teknik Elektro Universitas Mataram Bawa Susana, I Gede; Wiryajati, I Ketut; Perdana Putra, I Ketut; Wirya Aryadi, I Gusti Agung Ketut Chatur Adhi; Joniarta, I Wayan
JURNAL KARYA PENGABDIAN Vol. 7 No. 2 (2025): Oktober, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jkp.v7i2.225

Abstract

Aktivitas angkat-angkut peralatan di laboratorium listrik dasar jurusan Teknik Elektro seperti aerator sering kali dilakukan tanpa memperhatikan prinsip ergonomi, sehingga berisiko menimbulkan kelelahan fisik dan gangguan muskuloskeletal. Kegiatan pengabdian ini bertujuan untuk memperkenalkan prinsip dasar ergonomi kepada teknisi yang terlibat dalam kegiatan praktikum di Laboratorium Listrik Dasar Jurusan Teknik Elektro Universitas Mataram. Metode yang digunakan mencakup observasi awal, penyuluhan teori, pelatihan praktik ergonomis, serta evaluasi melalui kuesioner dan diskusi. Hasil kegiatan menunjukkan peningkatan pemahaman peserta terhadap pentingnya postur kerja yang benar dan penggunaan teknik angkat-angkut yang lebih aman, seperti mengangkat beban bersama dua orang dan menggunakan kekuatan kaki. Peserta menyatakan memahami prinsip dasar ergonomi dan mampu menerapkan teknik angkat-angkut secara tepat. Kegiatan ini menunjukkan bahwa edukasi ergonomi yang sederhana namun aplikatif dapat meningkatkan kesadaran akan keselamatan kerja serta mengurangi risiko cedera. Diperlukan tindak lanjut berupa penyusunan SOP ergonomi laboratorium dan penyediaan alat bantu kerja untuk mendukung praktik ergonomis secara berkelanjutan.
Application of Anthropometric Data on Redesign of Lightweight Brick-Cutting Tools to Reduce Workers' Musculoskeletal Complaints I Gede Bawa Susana; I Made Suartika; Gilang Ade Putra
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 25 No. 1 (2025): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v25i1.72-77

Abstract

The work of cutting lightweight bricks manually with the help of cutting tools still leaves problems. Unnatural working postures are a form of problems faced by workers. This causes musculoskeletal complaints that have an impact on comfort at work. To overcome this, a redesign of the lightweight brick-cutting tool was carried out using worker anthropometric data. The redesign was carried out on the pedal switch and work chair because this caused complaints from workers. The results of the redesign reduced the musculoskeletal complaints of workers who did lightweight brick-cutting work by an average of 49.36%. This figure was obtained from measurements after working on the old and new tools. The decrease occurred from an average of 62.8 when using the old tool to 31.8 after the intervention. The study results can be used as a guideline for workers doing manual work to create a comfortable and sustainable working atmosphere.
ERGO-MECHANICAL APPROACH OF DESIGNING TRUCK TIRE INSTALLATION TOOL FOR SMALL WORKSHOPS Susana, Gede Bawa; Aryadi, I Gusti Agung Ketut Chatur Adhi Wirya; Jefry, Hafiz
Jurnal Dinamika Vokasional Teknik Mesin Vol. 11 No. 1 (2026)
Publisher : Department of Mechanical Engineering Education

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Abstract

Manual truck tire installation can cause musculoskeletal disorders due to unnatural postures and high physical demands. This study aims to assess the prevalence of musculoskeletal complaints among truck tire installation workers and to design a truck tire installation aid based on an ergo-mechanical approach. The level of musculoskeletal complaints was measured using the Nordic Body Map questionnaire with a four-point Likert scale in five workers, before and after work. The measurement results showed an average musculoskeletal complaint score of 54.2 after work, placing it in the moderate-risk category and requiring corrective action. Based on these findings, a truck tire installation aid was designed using worker anthropometric data, employing a 5th-percentile approach to ensure the safety and comfort of workers with small body sizes. The body dimensions used include standing elbow height, palm length, knee height, foot length, and horizontal standing reach. The results of translating anthropometric data into technical designs indicate that the proposed assistive device has the potential to improve work posture, reduce physical load, and lower the risk of musculoskeletal disorders. Although this research remains limited to the conceptual design stage and lacks prototype testing, the results can serve as a basis for developing and evaluating ergonomic assistive devices in real work environments.
Thermal Performance of LPG Stove as Heat Source of Rotary Dryer for Drying Corn for Small Farmers Ida Bagus Alit; I Gede Bawa Susana
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.537-546

Abstract

Sunlight to dry post-harvest food materials such as corn highly depends on the weather. When it is cloudy or rainy, drying automatically stops. On the other hand, biomass dryer models such as rice husks are rather difficult to regulate the drying temperature. This study aims to create a dryer model that produces uniform temperatures and is easy for small farmers to operate. It is a rotary dryer with liquefied petroleum gas (LPG) energy. This study tested a small-scale rotary dryer based on drying time to reduce water content by up to 14%. The test used corn samples weighing 10 kg, 15 kg, and 20 kg with a water content of 18%. Testing to reduce water content to 14% is based on the Indonesian National Standard. The results showed that corn samples weighing 10 kg, 15 kg, and 20 kg required time and LPG requirements of 37 minutes and 0.092 kg, 52 minutes and 0.132 kg, and 90 minutes and 0.281 kg, respectively. The drying temperatures were 54.67°C, 55.96°C, and 57.63°C, respectively. Rotary dryers are useful for small farmers in developing areas who do not yet understand the technology. The short drying time allows this dryer machine to repeatedly dry corn. Keywords: Rotary dryer, Liquefied petroleum gas, Corn drying, Drying rate.
APLIKASI ERGONOMI BERDASARKAN DATA ANTROPOMETRI PEKERJA PADA DESAIN ALAT KERJA I Gede Bawa Susana; Ida Bagus Alit; I G.A.K. Chatur Adhi Wirya Aryadi
Energy, Materials and Product Design Vol. 1 No. 1 (2022): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

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Abstract

A review of the application of ergonomics to design work tools based on worker anthropometric data is carried out to provide information on its use in the production process, especially in micro, small and medium business. This is done because most people in Indonesia still use simple tools with unnatural work postures. Unnatural work postures such as bending, squatting, twisting, exposure to the sun, etc. Unnatural work postures cause musculoskeletal complaints and fatigue which have an impact on decreasing work efficiency. Of course, this causes a decrease in productivity and quality of life for workers. From the results of a review of several studies and literature, satisfactory results were found regarding the application of ergonomics in designing work tools according to worker anthropometric data. Application of anthropometric data for the design or redesign of a work tool based on the flow of 1) determining the body that is important in the design or redesign, 2) determining the user population, 3) calculating the percentile value for each predetermined body dimension, and 4) application to the design of the tool. Ergonomics application based on information related to human factors (strengths, weaknesses, or limitations) in designing work tools that are more effective, safe, comfortable, healthy, and efficient. An ergonomic work tool can be used effectively, comfortably, safely, healthily, efficiently, and sustainably. Ergonomics application as an alternative in overcoming the problem of musculoskeletal complaints and fatigue due to unnatural work postures. Ergonomics applications improve work safety and worker health so that work productivity increases.
ANALISIS PENERAPAN KONSEP ERGONOMI UNTUK MENDESAIN MESIN POTONG KULIT KERANG MUTIARA I Wayan Joniarta; Made Wijana; I G.A.K. Chatur Adi W.A.; I Gede Bawa Susana; I Made Suartika
Energy, Materials and Product Design Vol. 1 No. 2 (2022): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

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Abstract

The application of the concept of ergonomics is carried out on seashell craft work facilities because the work facilities used are not in accordance with the principles and norms of ergonomics feasibility. The research objective is the redesign of cutting machines and work chairs based on various kinds of information related to human factors which include designing tools and work facilities that are more effective, safe, comfortable, healthy, and efficient (ENASE). Some of the ergonomic parameters that are used as references include aspects of anthropometry, human physical performance, effectiveness-efficiency, work productivity, and the subjectivity of complaints of body pain as a result of inappropriate positions and workloads. In this study, 1 unit of circular model of shell cutting machine was designed and 1 unit of chair / seat. With anthropometric measurements of employees and through ergonomic calculations using the 5th percentile, the dimensions of the work table (cutting table) were obtained, the size of the table height was 87, 9 cm long table 110 cm and table width 64.3 cm. Then the dimensions of the chair are also obtained as follows: seat base height 32.7 cm Chair base length 70.6 cm Chair base width 32.1 cm chair back height 56.8 cm cm, seat back width 44.5 cm After applying the principles of ergonomics, based on the results of the Nordic Body Map questionnaire, it was found that the application of ergonomic principles to work tools for clam shell workers resulted in a 128% decrease in musculoskeletal complaints. In addition to this, it also resulted in a decrease in fatigue levels of 103%. . This shows that the application of ergonomic principles has a positive impact on employees
ANALISA SISTEM ELEKTRONIK POWER STEERING UNTUK PENGEMBANGAN KENDARAAN LISTRIK FAKULTAS TEKNIK UNRAM I Dewa Ketut Okariawan; Made Wirawan; I G. Bawa Susana; Maharsa Pradityatama
Energy, Materials and Product Design Vol. 3 No. 1 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

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Abstract

Recenly conventional vehicles use fossil fuels, however these fuels are non-renewable energy sources and their availability in nature is very limited. If they are explored continuously then one day they will run out, so it is very necessary to save and innovate to use these sources. Other renewable energy sources, one of which is electrical energy, where this electrical energy can be generated from various sources such as water, solar, biomass and so on. Besides that, the use of electrical energy for vehicles is currently very relevant because it is environmentally friendly, that is, it does not produce CO or CO2 gas like conventional vehicles, so this energy is known as green energy. Indonesia has the potential to produce electric cars because the availability of nickel is very abundant to be processed into batteries, as a provider or energy storage for electric cars, our country has a very big opportunity to produce electric cars. To make this happen, it is deemed necessary to carry out comprehensive studies such as power steering so that comfort and safety can be achieved. The most suitable power steering is the electric power steering (EPS) type because the energy required comes from the battery. The method applied in this research is an experimental method, by measuring torque requirements on various roads, the roads chosen are asphalt roads, block paving roads and dirt roads. Based on this data, an EPS test bench then created which was able to measure the input and output torque of the EPS and look for the power consumed by the system. Road conditions can cause differences in torque requirements, in block paving road conditions the greatest torque requirement is 2.77 Nm and the smallest occurs in asphalt road conditions at 1.62 Nm. EPS testing shows that it is only loaded up to 25% with an input torque of 1,652 Nm resulting an output torque of 3,924 Nm with an electrical power consumption of 6,31 watts.
APLIKASI ALAT BANTU ERGONOMIS PADA KERJA MANUAL BERDASARKAN KAJIAN ERGO-MECHANICAL UNTUK PETANI KECIL I Gede Bawa Susana; I Ketut Perdana Putra; I G.A.K.C. Adhi
Energy, Materials and Product Design Vol. 3 No. 1 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Using traditional tools and manual work by small farmers in rural and developing areas is routine in processing agricultural land, especially planting plant seeds. This working model includes moderate to severe workload due to additional workload, namely sunlight when planting. In addition, work is carried out with non-ergonomic work postures, namely non-natural work postures. This causes musculoskeletal complaints to workers due to the non-harmonious tools with workers. Workers' productivity will decrease and have the potential to reduce the quality of life of small farmers themselves. To help the manual work of small farmers to create effective, comfortable, safe, healthy, efficient, and sustainable jobs, an ergo-mechanical application is needed to design work tools. This application is based on studies conducted on the design of work tools from several libraries or research results. The ergo-mechanical study is an integrated system that applies ergonomic and mechanical principles. The ergo-mechanical application produces ergonomic work tools that are comfortable to use by workers, and technical standards include material, product, and service requirements. Mechanically, the application through technical drawings, mechanical planning, and work tool materials to get a strong, lightweight, and safe work tool from hazardous substances, according to technical specifications. Technical standards are related to data sheets or specifications that describe the technical characteristics of a work tool. On the specifications of the work tool design, specifications can be added that the work tools are ergonomic. Ergonomic work tools can produce effective, comfortable, safe, healthy, and efficient work. This results from the compatibility between work tools and workers or the harmonious work tools with workers. Ergo-mechanical creates comfort in work that affects the increase in productivity and quality of life for workers.
EVALUASI ALAT PENGADUK DODOL NANGKA SKALA RUMAH TANGGA BERDASARKAN PRINSIP ERGO-EKONOMI : EVALUATION OF HOUSEHOLD SCALE JACKFRUIT DODOL MIXER TOOL BASED ON ERGO-ECONOMIC PRINCIPLES I Gede Bawa Susana; Ida Bagus Alit
Energy, Materials and Product Design Vol. 3 No. 2 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The use of manual tools in the process of stirring jackfruit dodol tends to have an impact on high workload, fatigue, and complaints from workers. The stirring process requires a lot of energy to get perfectly cooked dodol. In addition, manual tools take a long time, and the product needs to be evenly cooked, leaving a crust on the dodol stirring pan. To overcome this, an automatic stirring tool is needed at an affordable cost. Workers' participation as users is required so that the tools used match workers' wishes. Ergo-economic applications are necessary to meet workers' desires: comfort and affordable costs. From the evaluation carried out, it was found that the automatic stirring tool only requires a little energy because a machine does the stirring. This impacts the workload, fatigue, and complaints automatically decreasing when compared to using a manual stirring tool. Economically, the use of an automatic stirring tool provides benefits for dodol entrepreneurs after the 2.4th month. This is based on the investment value of the automatic stirring machine. The ROI (Return on Investment) level is 170.216%. This stirring machine is more effective because the stirring results are more even and do not cause crust on the container. Worker performance can be improved by applying ergo-economics based on preventive measures against behaviors that can potentially cause injury in the workplace. Workers are the main asset or economic resource in the industry, and ergonomics and economics are interrelated with ergonomics, which can create better working conditions, producing a better economy.
ANALISIS POTENSI BIOMASSA SEKAM PADI DI PULAU LOMBOK, INDONESIA SEBAGAI SUMBER ENERGI TERBARUKAN: ANALYSIS OF RICE HUSK BIOMASS POTENTIAL IN LOMBOK ISLAND, INDONESIA AS A RENEWABLE ENERGY SOURCE I Gede Bawa Susana; I Ketut Perdana Putra; I Gusti Agung Ketut Chatur Adhi Wirya Aryadi
Energy, Materials and Product Design Vol. 4 No. 1 (2025): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/empd.v4i1.6877

Abstract

The utilization of renewable energy is one of the strategic solutions for overcoming dependence on fossil fuels and supporting sustainable development. This study aims to analyze the potential of rice husk biomass on the island of Lombok as an environmentally friendly renewable energy source. The methods used include collecting secondary data on rice production, estimating rice husk production as agricultural waste, and projecting the potential energy to produce. The analysis was carried out through theoretical calculations of the potential energy of rice husk biomass. It did not include economic aspects, and the collection of raw materials was not considered. The study results show that the island of Lombok has a reasonably enormous potential for rice husk biomass, with an energy value that can be converted into electricity or alternative fuels. In addition, the use of rice husk as biomass can also reduce greenhouse gas emissions and provide a positive economic impact on local communities. However, optimizing this potential requires the support of appropriate technology, infrastructure, and policies. Thus, rice husk on the island of Lombok has the prospect of being one of the promising renewable energy sources within the framework of the national energy transition.
Co-Authors A. Mulyanto Achmad Zainuri Adhi W.A., I G.A.K. Chatur Adhi, I G.A.K.C. Adhi, I.G.A.K.C. Agus Dwi Catur Alit Triadi, Anak Agung Aryadi, I G.A.K. Chatur Adhi Wirya CATUR ADHI , I GUSTI AGUNG KETUT Chatur Adi W.A., I G.A.K. Chatur Adi.W.A, I.G.A.K Emmy dyah S Gilang Ade Putra I G.A.K Chatur Adhi W.A. I G.A.K. Chatur Adhi Wirya Aryadi I G.A.K. Chatur Adi W.A. I G.A.K. Chatur Adi W.A. I G.A.K.C. Adhi I G.A.K.C. Adhi I Gede Santosa I Gusti Agung Ketut Chatur Adhi Wirya Aryadi I Ketut Perdana Putra I Ketut Perdana Putra I Ketut Wiryajati I Made Adi Sayoga I Made Mara I Made Suartika I Made Suartika I Wayan Joniarta I. B. Alit I. B. Alit I. M. Mara I.B Alit I.B. Alit, I.B. I.D.K. Okariawan I.M Mara I.M. Mara I.M. Nuarsa Ida Ayu Sri Adnyani Ida Bagus Alit Ida Bagus Alit Jefry, Hafiz Kawirian, Wisnu M. Mirmanto, M. Made Wijana Made Wijana Made Wijana, Made Made Wirawan Made Wirawan Made Wirawan Made Wirawan, Made Maharsa Pradityatama Mara, I.M. Mas'ud Mas'ud N. Nurpatria, N. Nuarsa, I.M. Okariawan, I Dewa Ketut Padang, Y.A. Perdana Putra, I Ketut Putra, I Ketut Perdana R. Sutanto Rudy Sutanto S. Sujita Sapri, S. Sinarep Sinarep Suartika , I Made Sugiman . Sujita Darmo Sujita Sujita Sujita Sujita Sujita, Sujita Sultan Sultan Wirya Aryadi, I Gusti Agung Ketut Chatur Adhi Yesung Allo Padang