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"The purpose of this paper is to evaluate the ergonomics aspects of the first prototype of a folding bike designed by the Department of Mechanical Engineering, University of Indonesia (DME UI) in a virtual environment. Posture Evaluation Index (PEI) is used as an analysis approach that integrates the results of three methods: Low Back Analysis (LBA), Ovako Working Posture Analysis System (OWAS), and Rapid Upper Limb Assessment (RULA). The objective is to determine the optimal design configuration of a folding bicycle based from an ergonomics perspective. For male and female riders, the optimal configuration is obtained when the height of the handlebar is 32 cm and the height of the saddle is 83 cm. This study proved that a virtual environment could strengthen the ergonomics evaluation, especially in posture condition exploration"

"The purpose of this paper is to evaluate the ergonomics aspects of the first prototype of a folding bike designed by the Department of Mechanical Engineering, University of Indonesia (DME UI) in a virtual environment. Posture Evaluation Index (PEI) is used as an analysis approach that integrates the results of three methods: Low Back Analysis (LBA), Ovako Working Posture Analysis System (OWAS), and Rapid Upper Limb Assessment (RULA). The determine the optimal design configuration of a folding bicycle based from an ergonomics perspective. For male and female riders, the optimal configuration is obtained when the height of the handlebar is 32 cm and the height of the saddle is 83 cm. This study proved that a virtual environment could strengthen the ergonomics evaluation, especially in posture condition exploration."

"ABSTRAKIndustri tekstil dan garmen adalah salah satu industri terpenting di dunia. Di Indonesia, industri tekstil dan garmen adalah satu dari sepuluh industri yang diprioritaskan dari Rencana Induk Pengembangan Industri Naosional (RIPIN) 2015-2035. Karakteristik pekerjaan dalam industri garmen umumnya proses penanganan material dan proses yang melibatkan permesinan yang memiliki pengulangan yang tinggi pada satu jenis otot yang dapat menyebabkan Work-related Musculoskeletal Disorder (WMSD). WMSD adalah salah satu masalah kesehatan kerja terbesar saat ini. Dalam penelitian ini, pekerja divisi sablon industri garmen UMKM PT.X yang memiliki risiko tertinggi di salah satu UMKM di Jakarta dievaluasi untuk postur kerja mereka menggunakan indeks evaluasi postur menggunakan virtual environment dalam software Jack. Pekerja divisi sablon PT. X memiliki risiko WMSD dari nilai PEI dan analisis ergonomi lainnya (LBA, OWAS, dan RULA). Nilai PEI yang didapat berkisar dari 1,12 hingga 2,7. Hasilnya menunjukkan bahwa pekerja memiliki risiko low dan medium to low injury dari postur kerja yang dilakukan.<

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ABSTRACTTextile and garment industry is one of the most important industries in the world. In Indonesia, textile and garment industry is one of ten industries prioritized from the 2015-2035 Nation Industrial Development Master Plan (RIPIN). Job characteristics in the garment industry ae generally material-handling processes and processes involving machinery that have high repetition that can cause Work-related Musculoskeletal Disorder (WMSD). WMSD is one of the biggest occupational health problems nowadays. In this research, workers of screen printing division of garment industry Small Medium Enterprise (SME) PT.X which has the highest risk in one of the SME in Jakarta were evaluated for their working postures using posture evaluation index using virtual environment in Jack simulation. PT. X has a risk of WMSD from PEI values and other ergonomic analysis (LBA, OWAS, and RULA). The PEI values obtained ranged from 1.12 to 2.7. The results show that workers have a low and medium to low injury risk from the work posture performed.

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"[ABSTRAKPenelitian ini mengkaji aspek ergonomis desain pesawat perintis berpenumpang 19 berdasarkan aktivitas egress darurat pilot untuk menghasilkan rekomendasi desain pesawat perintis ergonomis yang mendukung aktivitas egress darurat pilot. Dihasilkan usulan konfigurasi dari pintu darurat, handle di bagian kokpit, serta foot step di bagian kokpit dan di bawah pintu darurat yang akan dianalisis. Pendekatan metode yang digunakan adalah metode digital human modelling dengan sistem penilaian PEI yang mengintegrasikan tiga metode yaitu Low Back Analysis, Ovako Working Posture Analysis System, dan Rapid Upper Limb Assessment. Hasil penelitian ini yaitu usulan konfigurasi desain pintu darurat dengan tinggi 85.24 cm dan lebar 46.64 cm; konfigurasi foot step di bawah pintu darurat dengan ukuran panjang 26.6 cm, lebar 20 cm dan tinggi 10 cm; konfigurasi foot step di bagian luar badan kokpit berukuran panjang 10 cm dan lebar 22 cm; serta didapatkan juga hasil konfigurasi handle terbaik dari sisi ergonomi dengan ukuran tinggi 20 cm dan panjang 10 cm.ABSTRACTThis research studies the ergonomics aspect 19-Passenger STOL (Short Takeoff and Landing) Utility Aircraft based on activities egress emergency pilot to get the recommendation of an ergonomic aircraft design that supports activities egress emergency pilot according to the Posture Evaluation Index (PEI) result. Researcher proposed configuration tools from emergency exit door, handle in the cockpit, foot step in the cockpit and below the emergency exit door to be analyzed, where the configuration of this tool is able to assist the pilot emergency egress. Posture Evaluation Index (PEI) was an approach that integrated the results of these three analysis methods Lowback Analysis, Ovako Working Posture Analysis System, and Rapid Upper Limb Assessment. This research has some results, they are a configuration of emergency exit door with a height of 85.24 cm and wide of 46.64 cm; a configuration of foot step under the emergency exit door with a length of 26.6 cm, a width of 20 cm and a height of 10 cm; a configuration of foot step outside the cockpit with a length of 10 cm and a width of 22 cm; and also obtained the best results for a configuration of an ergonomic handle is 20 cm in height and a length is 10 cm., This research studies the ergonomics aspect 19-Passenger STOL (Short Takeoff and Landing) Utility Aircraft based on activities egress emergency pilot to get the recommendation of an ergonomic aircraft design that supports activities egress emergency pilot according to the Posture Evaluation Index (PEI) result. Researcher proposed configuration tools from emergency exit door, handle in the cockpit, foot step in the cockpit and below the emergency exit door to be analyzed, where the configuration of this tool is able to assist the pilot emergency egress. Posture Evaluation Index (PEI) was an approach that integrated the results of these three analysis methods Lowback Analysis, Ovako Working Posture Analysis System, and Rapid Upper Limb Assessment. This research has some results, they are a configuration of emergency exit door with a height of 85.24 cm and wide of 46.64 cm; a configuration of foot step under the emergency exit door with a length of 26.6 cm, a width of 20 cm and a height of 10 cm; a configuration of foot step outside the cockpit with a length of 10 cm and a width of 22 cm; and also obtained the best results for a configuration of an ergonomic handle is 20 cm in height and a length is 10 cm.]"

"Penggunaan watermist sebagai media pendingin dan pemadaman api sudah umum digunakan, ternyata masih dapat dipergunakan untuk fungsi lain yang salah satunya dibawakan dalam penelitian ini yaitu dalam hal memanipulasi bentuk aliran asap. Penelitian ini meneliti mengenai perubahan laju penurunan asap hasil pembakaran kolam api berdiameter 100mm berisi bensin pada kompartemen dengan rancangan kabut air menggunakan beberapa jenis variasi sudut antara lain; 30o,45o dan 60o dan tekanan 7, 9.5 dan 12.5 bar. Hasil seluruh variasi dibandingkan satu dengan yang lainnya dan juga dibandingkan dengan hasil saat tidak menggunakan sistem kabut air. Seluruh hasil juga dibandingkan dengan hasil simulasi perangkat lunak Fire Dynamic Simulator V05. Hasil penelitian ini menunjukan bahwa beberapa variasi sistem kabut air dapat menahan laju penurunan asap dengan momentum yang dihasilkan dan variasi eksperimen tertentu yang dapat menahan laju paling baik.

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Although the use of water mist as cooling and fire fighting media is nothing new, there is still another use of it which is often overlooked – the use of it to manipulate smoke flow. This eksperiment aims to examine the correlation between the downward of smoke created by 100mm diameter pool fire filled with gasoline in a compartment and water mist system with several variations- angle 30o, 45o, and 60o and pressure 7, 9.5, and 12.5 barr. The result within each variation is compared with one another and again compared with the result without the use of water mist system.

The whole results are then compared with the output from Fire Dynamic Simulator v05. Eventualy, this experiment shows that several water mist settings could actually slow down downing rate of the smoke and one certain variation has the best success in slowing down the rate."

"Offshore pipelines atau yang lebih dikenal dengan sebutan pipa bawah laut merupakan moda transportasi yang sangat efisien dan ekonomis yang mampu mengalirkan fluida dari satu tempat ke tempat lainnya dimana jarak antara kedua tempat tersebut umumnya relative cukup jauh serta menjangkau antar pulau. Sekarang ini pengembangan lapangan dengan teknologi subsea mempunyai fleksibiklitas yg lebih besar dari topside. Salah satu metode pengecekan terhadap PLEM adalah analisa tegangan. Tegangan yang terjadi pada PLEM dipengaruhi beberapa faktor beban. Kritria analisa tegangan mengacu pada standard code yang telah ditetapkan yaitu ASME B 31.8 : Gas Transmission and Distribution Piping System, 2010. Hasil analisis menunjukan bahwa tegangan-tegangan yang terjadi pada PLEM tidak melebihi batas izin yang sudah diatur dalam standard code, hal ini menunjukkan PLEM dalam kondisi aman. Apabila PLEM terjadi overstress, dilakukan langkah mitigasi agar tegangan pada PLEM tidak melebihi tegangan yang di izinkan oleh standard code.

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Offshore pipelines or better known as subsea pipeline is a mode of transportation which is very efficient and economical, it is able to transport fluid from one place to another place where the distance between two places are quite far or between islands. Nowadays, development of subsea pipeline technology has higher flexibility than the topside. Stress analysis is one of method to check the PLEM. Stress that occur on PLEM is affected by some of load factors. Stress analysis criteria refers to standard code that has been agreed is ASME B 31.8: Gas Transmission and Distribution Piping System, 2010. Results of analysis shows stress on PLEM is not higher than allowable stress which has been set on standard code, it shows that PLEM is safe. If overstress occur on PLEM, mitigation step must be taken in order to make stress on PLEM is not higher than allowable stress which has been set on standard code."