Papers by Keyword: Ergonomics

Abstract: Presently available motorcycle helmet designs in the market adhere primarily to the Indonesian National Standard (SNI) 2007, which dictates sizing based solely on inner circumference and height while disregarding anthropometric data. Based on the research findings, consumer preferences for helmet products indicate a prioritization sequence of technical characteristics, with the highest ranking as follows: “Helmet safety during usage” has a relationship value of 63% with a contribution value of 2.601; “Size” that accommodates the user has a relationship value of 62% with a contribution value of 2.583; “Maintenance of airflow within the helmet” has a relationship value of 57% with a contribution value of 2.283; “Comfortable helmet use” has a relationship value of 52% with a contribution value of 2.087; “Competitive pricing” has a relationship value of 38% with a contribution value of 1.246; “Ergonomic features” of the helmet has a relationship value of 33% with a contribution value of 1.425; “Durability and longevity” have a relationship value of 31% with a contribution value of 1.216; and “Helmet aesthetics” has a relationship value of 30% with a contribution value of 1.216. For size S: Helmet width 17.67 cm, Helmet circumference is 58.29 cm, Helmet height is 26.56 cm, Distance from Ear to Top of Helmet is 16.95 cm, Helmet Length is 20.33 cm, Helmet Visor Height is 9.95 cm, Ear Position Length on Helmet is 4.14 cm, Ear Position Width on Helmet is 1.94 cm, and The distance from the mastoid to the helix at the height of the tragus (Pinna height) on Helmet is 1.98 cm. For size M: Helmet width is 19.65 cm, Helmet circumference is 63.11 cm, Helmet height is 28.14 cm, Distance from Ear to Top of Helmet is 18.17 cm, Helmet Length is 22.13 cm, Helmet Visor Height is 12.35 cm, Ear Position Length on Helmet is 4.13 cm, Ear Position Width on Helmet is 2.97 cm, Pinna height on Helmet is 2.86 cm. For size L: Helmet width is 21.14 cm, Helmet circumference is 67.41 cm, Helmet height is 29.92 cm, Distance from Ear to Top of Helmet is 20.48 cm, Helmet Length is 23.80 cm, Helmet Visor Height is 14.43 cm, Ear Position Length on Helmet is 4.12 cm, Ear Position Width on Helmet is 4.00 cm, and pinna height on Helmet is 3.76 cm. For size XL: Helmet width is 21.38 cm, Helmet circumference is 68.44 cm, Helmet height is 31.45 cm, Distance from Ear to Top of Helmet is 22.76 cm, Helmet Length is 25.48 cm, Helmet Visor Height is 15.78 cm, Ear Position Length on Helmet is 4.03 cm, Ear Position Width on Helmet is 4.91 cm, and Pinna height on Helmet is 4.97 cm.

Abstract: Indivíduos que permanecem acamados por um longo período estão sujeitos a alterações nos sistemas do corpo humano, e as úlceras por pressão são um grande problema nessa condição clínica, representando mais de 6,5 milhões de casos por ano em todo o mundo. As forças de pressão atuantes combinadas com as forças de cisalhamento são responsáveis ​​por lesões na pele e / ou tecido subjacente, geralmente em uma proeminência óssea. O paciente é o ponto de partida para o desenvolvimento do produto / vestimenta, porém, para atender essa demanda em termos de conforto de diversas formas, é necessário considerar além das necessidades, limitações, condição de mobilidade, posturas adotadas, complicações e implicações da lesões, as especificações dos materiais usados, bem como o design de padrões, estruturas e tecnologias. O objetivo deste estudo é construir uma matriz de atributos para o desenvolvimento de roupas inteligentes na prevenção de úlceras por pressão. Para esta condição, este estudo visa relacionar as propostas com as novas tecnologias, ergonomia e usabilidade, sob os quatro aspectos do conforto: ergonômico, psicológico-estético, termofisiológico e sensorial.

Abstract: This study presents the applicability of ergonomics in clothing for bodies in transformation, namely for elderly women aged 65 and over. The proposal focused on an audience that deserves attention with regard to a design product for everyday use, namely clothing that is suitable for a new physical constitution. The purpose of this article is to present the ergonomic, technical and aesthetic factors, considering the physical, psychological and social needs of this target group, for the development of clothing products. Considering the identified needs, materials and methods were suggested for the development of models with specific particularities, appropriate to the real condition of these elderly women. In addition to the bibliographic research carried out, specific methods were used to collect anthropometric measurements, surveys were implemented, and direct observation was also carried out with the target group. The results obtained demonstrated that the methods and techniques applied in the development of a more comfortable and aesthetically pleasing clothing were effective, having been observed that the ergonomic variable of comfort was the one that most impacted at the time of the product development process. It was possible to conclude that the complete assessment of body transformation contributed significantly to the development of clothing with characteristics of comfort and protection that respond to the needs of this segment of the population.

Abstract: When the measurable quantities are not given a value for the amount considered or found a standard for the quantity, it requires calibra-tion. Calibration is a preparation process before starting the test. It is a process of finding the relationship between two unknown quanti-ties. If one of the quantities is known because it is made or set with another device, another measurement is made as similar way as possible with the first device using a second device. The measurable quantities may differ in two devices which are equivalent. The de-vice with the known or assigned correctness is called the standard. The second device is the unit under test, test instrument or any of several other names for the device calibrated. [1] The process can reduce the error margin of the tested measurement and that will prevent any unnecessary problems that may harm human in certain application applied.

Abstract: Gamelan is traditional musical instrument that evolves especially in Bali, its function is to accompany the religious and cultural ceremonies of Hindus. The making process of gamelan, smelting bronze alloys, is done by using traditional furnaces. The use of charcoal as fuel in smelting process causes melting furnace performance is difficult to determine. That condition impacts the effectiveness of the smelting process especially in determining the needs of fuel and the processing time. Therefore, it influences the productivity of crafters. This research was conducted to test the performance of the furnace in accordance with a design that is commonly used by artisans. The observation was done at the temperature of melting, melting time, data retrieval was conducted repeatedly three times on different days. Based on the analysis and observation in accordance with the experimental design made whereby in the smelting process to achieve the casting temperature indicated as follows. The average temperature of smelting is 730,8 °C, fuel use is 23 kg, melting time is 39.76 minutes as well as the efficiency of the furnace 36.80%. Based on the analysis conducted, low efficiency is due to the surface of the furnace which is designed open, so that during the energy generated in the process of burning a lot of fuel wasted into the environment.

Abstract: This paper is based on completed the design of the main structure of the fumigation treatment bed according to the size of the human body’s structure. And the solid modeling of each part is carried out in the CATIA environment. Then the working process of the fumigation bed is simulated by using the virtual prototype module of CATIA software. Using the FLUENT flow field analysis software to analyze the temperature field and velocity field of the fumigation tank’s inward under different conditions. With setting different variables in each condition gradually optimize the temperature field and velocity field in the fumigation tank’s inward.

Abstract: This article forms part of the research for innovation in intelligent systems and sustainable production in a social approach, with the aim of formulating a neuroscientific model for the application of Kansei-Chisei Engineering in Lean manufacturing environments, in the metal-mechanical sector. In the area of ergonomics design of environments and products has developed from a practical rational approaches to design emotional solutions incorporating affective design with Kansei engineering design. This paper describes the main objectives for methodological development based on Kansei-Chisei Engineering for application to design Lean manufacturing environments, the main background, current state of art and objectives.

Abstract: Oil palm evacuation are still labour dependent and room for mechanisation may still exist. With the importance of this industry as one of nation’s economic contribution the efforts are still considered viable. In order to reduce, improve and empower labours a new concept design was developed. A mock-up interaction was done in virtual environment in order to assess the ergonomic aspect of the design in order to determine the pros and cons of the concept design. The findings had led to a conclusion for a requirement of a more thorough assessment to assess human machine interaction in terms of biomechanical effects.

Abstract: House is one of the most basic needs of human life other than food and clothing. House comfort can be studied in house ergonomic. In House Ergonomic, research of the various factors that can be called decent house would have to meet the criteria of ergonomic house. Indonesia is a country with many different cultures, each of which has a typical traditional house for the region. In the days before globalization began, people of Indonesia had to build their own houses. The traditional house of the culture diversity is constructed without researching the science of ergonomics and modern architecture in theory, but is built from traditional local knowledge based on the philosophy and beliefs.

Abstract: A cross sectional study was conducted to evaluate whole body vibration (WBV) and back pain problem among light rail transit (LRT) driver. This study was carried out to determine exposure level of whole body vibration and identify back pain problem due to whole body vibration exposure among LRT driver. Standardized Nordic questionnaire was used for the analysis of musculoskeletal symptoms, to identify the prevalence of back pain, information about health history, working time duration, and working experiences was obtained from 52 drivers of light rail transit (LRT) train. HVM 100 Larson Davis was used to measure whole body vibration measurement of eight LRTs with different vehicle number. The measurement of whole body vibration was done during operation working time. The data collected from HVM 100 were transferred to the Blaze software for getting the vibration magnitude of the experiment while data collected from survey were analyzed by using Statistical Package for the Social Sciences (SPSS) for statistical analysis. The analysis of graph patterns and the differentiation of magnitude value from each LRT were studied to determine the exposure level of vibration. A high prevalence of back pain (82.7%) among LRT drivers was found and high daily exposure level was obtained. The finding showed that, there are relations between back pain and daily vibration exposure which resulted in a correlation coefficient of 0.709, with significant at α = 0.05. In conclusion, it was expected that the individuals subjected to the high vibration levels would tend to report back pain.