ERGONOMIC ANALYSIS ON REDESIGNING RICE HARVESTING MACHINES

2020 ◽  
Vol 8 (1) ◽  
pp. 165-170
Author(s):  
Shafiq Nurdin ◽  
Arianti Kusumawardhani ◽  
Sugiarto ◽  
Mahayu Woro Lestari ◽  
Khoirul Hidayat ◽  
...  
Keyword(s):  
Energy Expenditure ◽  
Product Design ◽  
Upper Limb ◽  
Anthropometric Data ◽  
Study Research ◽  
Machine Technology ◽  
Reduce Energy Expenditure ◽  
Body Map ◽  
Energy Consumptions ◽  
Ergonomic Analysis

Purposes of Study: Research was conducted with the aim of redesigning and analyzing rice harvesting machines that are in accordance with Indonesian anthropometry, machines that have designs to minimize injuries to the working position of farmers in harvesting rice. Methodology: The approach used to complete this research is by method Rapid Upper Limb Assessment (RULA) and Nordic Body Map, RULA considering anthropometric data, energy consumptions. The next step is to implement the calculation of data in the form of rice harvesting machine product design using the product design stages. Main Findings: The results of this study indicate that improved rice harvesting machines have better performance than the previous machines. Modification is done by adding two wheels on the front of the rice harvesting machine which can reduce energy expenditure by 2.73 Kcal/minute from 3.82 Kcal/minute to 1.09 Kcal/minute. In terms of productivity, it increased by 22.2% from 9 m2/hour to 11 m2/hour. Other ergonomic parameters using the Nordic Body Map have a significant decrease in pain complaints at 10 points of the limb. Implications: Products produced have valuable benefits that can be felt directly by the community with significant results in the process of completing their work. Novelty/Originality: The design carried out can provide benefits for traditional farmers who turn to harvest machine technology which can also minimize injury to machine users; this has not been done much research before.

Development of a Civilian 3d Hand Scan Database

2020 ◽  
Vol 64 (1) ◽  
pp. 995-999
Author(s):  
Bethany Juhnke ◽  
Colleen Pokorny ◽  
Linsey Griffin ◽  
Susan Sokolowski
Keyword(s):  
Human Factors ◽  
Product Design ◽  
Large Scale ◽  
Human Hand ◽  
Minimal Cost ◽  
Anthropometric Data

Despite the complexity of the human hand, most large-scale anthropometric data for the human hand includes minimal measurements. Anthropometric studies are expensive and time-consuming to conduct, and more efficient methods are needed to capture hand data and build large-scale civilian databases to impact product design and human factors analyses. A first of its kind large-scale 3D hand anthropometric database was the result of this study with 398 unique datasets. This database was created at minimal cost and time to researchers to improve accessibility to data and impact the design of products for hands.

scholarly journals Estimation of Energy Expenditure during Sedentary Work with Upper Limb Movement

2002 ◽  
Vol 44 (6) ◽  
pp. 408-413 ◽  
Author(s):  
Kunio Tsurumi ◽  
Torn Itani ◽  
Norihide Tachi ◽  
Toshimasa Takanishi ◽  
Hatsuko Suzumura ◽  
...  
Keyword(s):  
Energy Expenditure ◽  
Upper Limb ◽  
Limb Movement

scholarly journals Correlation between Age, Nutritional Status, and Working Posture and Musculoskeletal Disorders in PT ARPS

2019 ◽  
Vol 8 (3) ◽  
pp. 283
Author(s):  
Mufidha Khoirul Umami
Keyword(s):  
Nutritional Status ◽  
Musculoskeletal Disorders ◽  
Upper Limb ◽  
Risk Level ◽  
Physical Endurance ◽  
Cross Sectional ◽  
Significance Level ◽  
Physical Strength ◽  
Working Postures ◽  
Body Map

Introduction: Musculoskeletal disorders occur due to various factors: main factors, such as extortion of the muscles, repetitive activities, non-ergonomic working postures; secondary factors (pressure, vibrant, microclimate), and individual factors (age, years of service, sex, nutritional status, physical endurance, smoking habits, physical strength and anthropometry). The workers in the Injection Department at PT. ARPS mostly work with non-ergonomic working postures. The aim of this study is to analyze the correlation between age, nutritional status, and working postures and the complaints on musculoskeletal disorders among the workers in the Injection department at PT. ARPS. Metods: This study applies analytic observational method with a cross-sectional design. The sample is chosen by implementing simple random sampling with a total of 52 respondents. The data collection to measure the ratio risk level of the working postures of the injection workers is completed by using Rapid Upper Limb Assessment (RULA) measurement method, while Nordic Body Map (NBM) questionnaire form is used to measure risk level of the disorder, and anthropometry measurement is applied to evaluate the nutritional status of the workers, such as their height and weight. The data are analyzed using Spearman Rho’s Correlation (significance level α = 5%). Results: The percentage of injection workers are <35 years old (76.9%), have normal nutritional status (59.6%), 27 workers (51.9%) have low musculoskeletal disorders and 19 others (36.5%) have low-risk postures. Concluded: That there is a correlation between age (ρ-value = 0.005), nutritional status (ρ-value = 0.003) and working postures (ρ-value = 0.036) and musculoskeletal disorders on the injection workers at PT. ARPS. Keywords: injection worker, musculoskeletal disorders, Nordic Body Map, Rapid Upper Limb Assessement, working postures

scholarly journals Participatory design of healthcare technology with children

2018 ◽  
Vol 31 (1) ◽  
pp. 20-27
Author(s):  
Tara Sims
Keyword(s):  
Product Design ◽  
Design Process ◽  
Upper Limb ◽  
Participatory Design ◽  
Design Methodology ◽  
Design Research ◽  
Content Type ◽  
Upper Limb Prostheses ◽  
Sociocultural Approach ◽  
Design Skills

Purpose There are many frameworks and methods for involving children in design research. Human-Computer Interaction provides rich methods for involving children when designing technologies. The paper aims to discuss these issues. Design/methodology/approach This paper examines various approaches to involving children in design, considering whether users view children as study objects or active participants. Findings The BRIDGE method is a sociocultural approach to product design that views children as active participants, enabling them to contribute to the design process as competent and resourceful partners. An example is provided, in which BRIDGE was successfully applied to developing upper limb prostheses with children. Originality/value Approaching design in this way can provide children with opportunities to develop social, academic and design skills and to develop autonomy.

Paths of Movement of Body Members in Aircraft Cockpits

1974 ◽  
Vol 18 (3) ◽  
pp. 284-286
Author(s):  
S. Deivanayagam ◽  
M. M. Ayoub ◽  
Kenneth W. Kennedy
Keyword(s):  
Motion Picture ◽  
Upper Limb ◽  
Human Body ◽  
Point Of View ◽  
Human Engineering ◽  
Anthropometric Data ◽  
Slow Speed ◽  
Motion Trajectories ◽  
Motion Characteristics

This paper describes an effort to study the simultaneous motion trajectories of a large number of human body landmarks of a pilot during upper limb motions typical of those necessary to fly an aircraft. The objective is to gather engineering anthropometric data necessary, from a human engineering point of view, in the design of aircraft cockpits and other similar manned work stations. Twenty subjects participated in an experiment conducted to record the movements. A photographic procedure combining slow speed motion picture and interrupted light photography was employed to record the movements. This paper describes the procedure and also presents a set of typical paths of movement obtained through such recording. Also mentioned are some of the preliminary findings regarding the motion characteristics of parts of the human body.

scholarly journals Perbaikan Tingkat Risiko Musculoskeletal Disorders Berdasarkan Pendekatan Nordic Body Map dan Rapid Upper Limb Assessment Pada Hasil Rancang Bangun Mesin Roasting Kopi Digital Otomatis

2021 ◽  
Vol 10 (2) ◽  
pp. 191-200
Author(s):  
Ratih Rahmahwati
Keyword(s):  
Upper Limb ◽  
Musculoskeletal Complaints ◽  
West Kalimantan ◽  
Roasting Machine ◽  
Work Posture ◽  
Working Posture ◽  
Coffee Beans ◽  
Roasting Process ◽  
Body Map ◽  
Coffee Roasting

The roasting process of coffee beans in West Kalimantan, especially Pontianak city, is still done traditionally. The coffee roasting process is done manually by using a fire stove as a heater. Workers with standing posture stir the coffee beans continuously, and it can take 4 hours for 20 kilos of coffee beans. Standing work posture is required for stirring the coffee beans but can cause fatigue in workers due to long-standing times and high heating temperatures. This situation causes the roasting process to be less efficient and can cause the roasting process to be uneven. The purpose of this study was to identify musculoskeletal complaints of standing work posture in the manual coffee roasting process and provide an evaluation of corrective work posture when using the design results of an automatic digital roasting machine. The methods used in this study were the Nordic Body Map (NBM) and the Rapid Upper Limb Assessment (RULA) to assess the level of risk of posture for musculoskeletal complaints. The results of the identification of body points that experience fatigue were carried out by distributing NBM questionnaires and evaluating the worker's posture using RULA on CATIA V5R20. Based on the existing NBM, the risk score is 78, and the final RULA score is 6, which means that immediate corrective action is needed because the work posture is categorized as dangerous and does not meet ergonomic principles. Improvement of working posture is made by designing a roasting machine that is digital and automatic. So the workers do not need to mix the coffee beans manually. Based on roasting machine implementation results, there was a significant change in the NBM score and the final RULA score. The NBM results obtained a score of 55 which means that the risk is moderate with the risk of fatigue in the neck, right leg and, left leg. Meanwhile, evaluation of work posture based on RULA on CATIA obtained a final score of 3, which means that the work posture is not dangerous and does not require immediate improvement.  

scholarly journals DAMPAK POSISI DUDUK PEMBATIK TULIS TERHADAP RISIKO KESEHATAN DAN PENGENDALIANNYA

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Sumardiyono Sumardiyono ◽  
Reni Wijayanti
Keyword(s):  
Upper Limb ◽  
Body Map

Pekerja pembatik tulis dengan posisi kerja duduk yang tidak ergonomis karena menggunakan “dingklik” sebagai tempat duduk dapat menyebabkan risiko kesehatan kerja berupa gangguan muskuloskeletal. “Dingklik” merupakan tempat duduk yang relatif pendek, kecil dan tanpa sandaran. Tujuan pengabdian kepada masyarakat ini untuk menilai risiko bahaya kesehatan kerja pada posisi duduk pembatik tulis dan mendesain kursi kerja pembatik yang ergonomis dalam rangka menurunkan gangguan muskuloskeletal pembatik tulis. Metode pengabdian kepada masyarakat yang digunakan adalah observasi langsung pada pembatik ketika melakukan pekerjaannya, pengukuran antropometri sesuai dimensi tubuh yang diperlukan untuk mendesain kursi pembatik, mendesain kursi pembatik ergonomis, dan uji coba kursi hasil rancangan. Uji coba dilakukan dengan menilai postur kerja menggunakan metode Rapid Upper Limb Assessment (RULA) dan penilaian keluhan gangguan muskuloskeletal menggunakan kuesioner Nordic Body Map (NBM) yang dilakukan terhadap 20 orang pembatik. Hasil pengabdian adalah kursi pembatik hasil rancangan dapat menurunkan grand skor RULA dari 5 (level risiko 3) menjadi 3 (level risiko 2), dan berdasarkan skor NBM, dapat menurunkan tingkat gangguan muskuloskeletal dari Tingkat Gangguan Sedang menjadi Tingkat Gangguan Rendah. Kesimpulan dari pengabdian ini adalah penggunaan kursi ergonomis dapat menurunkan gangguan muskuloskeletal pembatik tulis.

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