• 디자인학연구
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• 제16권2호
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• pp.49-56
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• 2003

노인들도 사용하기 편한 제품을 디자인하기 위해서는 기존 제품에 대한 노인들을 대상으로 한 실험과정을 통하여 불편한 점을 파악하고, 그러한 불편요소가 해소될 수 있는 방향으로 해당제품이 디자인되어야 한다. 이러한 필요성에 의하여, 본 연구에서는 노인들의 일상생활에서 가장 자주 사용하고 일반적인 제품인 세탁기를 대상으로 디자인과정과 평가과정에 대한 연구를 수행하였다. 특히, 측각기와 같은 인간공학 장비를 사용하여 제품의 특정 부분에 대한 조작 편의성 평가를 수행할 수 있는 방법과 그 결과를 디자인에서 어떻게 활용할 수 있는지도 제시 하였다. 또한, 인간공학적 측면에서의 이론과 실험을 통한 디자인 방향과 컨셉의 결정, 디자인안 개발, 디자인안의 평가를 위한 실험, 실제 모델 제작, 사용편의성 측면에서 기존 모델과의 비교평가를 위한 실험 등에 대한 과정이 설명되었다. 연구의 결과는 노인을 위한 세탁기 개발에서의 중요 자료로 활용될 수 있고, 적용된 방법론은 세탁기 뿐만 아니라 다른 가전제품의 노인을 위한 디자인 개발에서도 활용될 수 있을 것이다.

• 소성∙가공
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• 제3권3호
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• pp.359-374
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• 1994

Process sequence design in sheet metal forming process by the finite element method is investigated. The forming of sheet metal into a washing machine container is used to demonstrate the design of an improved process sequence which has fewer operations. The design procedure makes extensive use of the finite element method which has simulation capabilities of elastic-plastic modeling. A one-stage process to make an initial blank to the final product is simulated to obtain information on metal flow requirements. Loading simulation for a conventional method is also performed to evaluate the design criteria which are uniform thickness distribution around the finished part and maximum punch load within limit of available press capacity. The newly designed sequence has two forming operations and can achieve net-shape manufacturing, while the conventional process sequence has three forming operations. This specific case conventional process sequence has three forming operations. This specific case can be considered for application of the method and for development of the sequence design methodology in general.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2005년도 춘계학술대회논문집
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• pp.473-478
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• 2005

In home appliances, electric energy is optimally controlled by using power electronics technology, creating a comfortable environment in terms of energy saving, low sound generation, and reduced time consumption. Usually simplicity and robustness make the three phase induction motor attractive for use in domestic appliance, including washing machines. Two main fpes of domestic washing machine have evolved. We focus on the front loading machine favored in Europe, which has a horizontal drum axis. With the advent of electronic control, universal motor, with a phase controller operating directly from the ac source, has become popular in washing machine. The efficiency improvement in home appliances is very important for customers. Induction motor efficiency can be improved by means of loss reduction, which can be realized by motor selection and design, improvement of the waveforms supplied by power inverter, utilizing a suitable control method. So this paper describes the architecture and feature of washing machine fed induction motor drive under minimizing losses vector control.

• 전력전자학회논문지
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• 제12권6호
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• pp.491-499
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• 2007

전동기 구동에 있어서 부하 특성의 변화는 가장 중요하게 고려해야 할 것 중 하나이다. 일반적으로 부하의 변동은 전동기에 흐르는 전류의 크기를 변화시키므로 그 변동의 크기에 따라 적절한 드라이브를 설계해야 할 필요가 있다. 하지만 물의 흐름과 역방향 부하토크 때문에 드럼 세탁기의 부하 변동은 불규칙하며 크다. 이러한 부하 패턴을 고려한 드럼 세탁기의 구동 드라이브를 설계하기 위하여 세탁기 부하의 변동을 물리적 해석을 통해서 모델링 하고자 한다.

• 한국기계가공학회지
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• 제21권1호
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• pp.1-7
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• 2022

In this study, vibration analysis of washing machine dehydration was carried out using laser sensors. The suspension of the washing machine was attached to a jig developed for this study. In addition, 10 laser sensors were attached to the jig. The channels of each laser sensor are composed of five channels: front, rear, left, right, and upper. Data acquisition equipment was used to obtain sensor data. The measured data were processed using signal processing, and interpolation of the data was performed using MATLAB with robust interpolation. Vibration analysis according to unbalanced mass and sensor attachment points was carried out.

• 한국의류산업학회지
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• 제13권3호
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• pp.425-431
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• 2011

The purpose of this study was to investigate washing effects according to the rinsing conditions and the characteristics of soiled fabrics. In this study rinsing conditions including rinsing cycle, time, temperature, and bath ratio were examined. The foamability of rinsing bath was also examined. The quantity of LAS in the rinsing bath and extracts of test fabrics was analyzed after washing and rinsing, respectively. The results of these experiments were as follows: The washing effects of soiled fabrics were varied from the kinds of soils and rinsing conditions. The removal of soils from fabrics was increased by the first rinsing after washing effectively. The priorities of rinsing conditions were rinsing temperature> rinsing time > rinsing cycles> references. Foamability was result from residual LAS in rinsing bath and fabrics extracts after rinsing. The residual quantity of LAS was references > rinsing cycles> rinsing time> rinsing temperature, which shown rinsing temperature was the most efficient factor of the rinsing performance.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.1311-1314
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• 2005

Recently drum washing machines are required to improve not only functions, but also endurance security. The spider is one of the major parts in a drum washing machine as a power transmission device. It is needed estimating for fatigue life because it rotates at high velocity when the drum washing machine works. In this study, we tried to estimate fatigue life of the Spider with CAE and verified the accuracy by comparing the CAE results with the experimental results. The estimation method of fatigue life for the spider with CAE will be applied to raise the efficiency of time and money in the design process of a new drum washing machine.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2007년도 하계학술대회 논문집
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• pp.13-15
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• 2007

The washing machine needs high torque for large load variation, Interior permanent magnet synchronous motor(IPMSM) is proper to adapt the washing machine system. However, IPMSM can operate the lower output power than the other permanent magnet synchronous motor(PMSM) when the motor control by the conventional control. This paper suggests adaptive motor control for IPMSM and experiments the washing machine system.

• 한국융합학회논문지
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• 제11권10호
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• pp.237-241
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• 2020

본 연구에서는 실제형상과 같은 회전날개들을 가진 세 개의 세탁기의 모델들에 대하여 유동해석을 하였다. 회전날개의 좌측, 우측 및 바닥 평면들에 대한 압력 및 속도들에서는, 전반적으로 Model C가 유동에 대한 압력이 가장 크게 나와서 Model A에 비하여 2배 이상 나타났고, Model B와 Model A순으로 되었다. Model A, B 및 C의 회전 블레이드 측면에서의 유동의 유선속도들을 보면, 전반적으로 Model C가 유동에 대한 속도가 가장 크게 나와서 Model A에 비하여 1.7배 가량 나타났고, Model B와 Model A순으로 되었다. 회전날개의 갯수가 많다고 해서 유동상태가 양호하다기 보다 Model C와 같이 Model A나 Model B에 비하여 날개의 개수가 적지만 날개의 하부 두께가 더 두꺼운 경우가 유동 압력 및 유동 속도가 커서 세탁성능을 향상시켜 준다는 것을 알 수 있다. 또한 본 연구가 실제적으로 세탁기 회전날개의 내구성이 있는 효율적인 설계와 그 회전 날개의 미적인 융합에 적합하여 보인다.

• 한국패션뷰티학회지
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• 제4권4호
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• pp.33-41
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• 2006

The purpose of this study was to investigate consumer's behaviors on the purchase and the laundering of baby's clothing according to washing machine types using by consumers. The subjects were 255 consumers with babies(0-2 years) in Korea. The data were collected using a self-administered questionnaire and analyzed using Chi-square test and multiple response analysis, and SPSS 12.0 statistics package was used. Consumers were separated into two groups according to washing machine types with general pulsator type and drum-type. Consumer's behaviors between general pulsator type group and drum-type group of washing machines were also examined. The Results of this study were as follows: 1. The purchase rate of baby's clothing was high compare to that of general clothing of family. The consumers with babies had priority on textile materials(cotton 100%) as baby's clothing. As for the consumer's behaviors between the purchase of baby's clothing and the consumer's characteristics, they showed a significant differences according to the consumer's characteristics like education level and washing machine types using by consumers. 2. The removal of soils including various foods was very important on the laundering of baby's clothing. Especially the rinsing of detergents was important on the laundering. Because they considered toxicity of detergents was high and harmful to the baby, and detergent's components such as surfactants, builders, and another additives could not removed completely with normal laundry courses by washing machines. 3. There were significant differences between general pulsator type group and drum-type group of washing machines on the purchase and the laundering of baby's clothing.