http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
신유인(Yoo In Shin),김치형(Chi Hyoung Kim),문원기(Won Ki Moon),송철기(Chul Ki Song) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.11
The special vehicle which affixes the independent suspension axle is considered to be very important to guarantee the convenience of operation and durability for the purpose of the vehicle. Therefore, the special vehicle, independent suspension system axle module (ISAM), is mainly produced at a high price with the object of logistics for the whole world market by only the advanced enterprise which has developed since the early stage of demand. Market of the ISAM does not occur to the massive demand, but it is a competitive market that the general special automobile production company does not manufacture and produce it, if this special vehicle independent suspension axle module is a possibility of developing with domestic technique. It is expected to achieve the technical ripple effect, competitive technical power improvement effect, the effect of industrial structure improvement, and economical and industrial effect which follows in ISAM development In addition, we will be able to be in competition with advanced nations and take the initiative in export amount of material security technology transfer.
박경난(Kyung Nan Park),김혜미(Hye Mi Kim),인초희(Cho Hee In),신유나(Yoo Na Shin) 충북대학교 생활과학연구소 2005 생활과학연구논총 Vol.9 No.1
This study has been undertaken to study the implications of fixtures and fittings that have been included in the construction process in apartment flats, its present condition, the effective use of such fittings and inconvenience felt by the residents. The questionnaire survey, interviews, measurements, photographing and sketches were completed, with the target segment being 28 residents currently using built-in fixtures and fittings or having had experience of such fittings, in the period of May 28th to 29th of 2004. 97% of the interviewees applied for an increase in Wall-type Furniture System for storage, 12 interviewees (42.9%) used the fixtures and fittings as they were and 2 residents had refurbished their homes. It is evident that some of the fixtures were moved or some even fully removed according to the changing needs such as childrens‘ requirements. The satisfaction brought upon by the designs and colour was relatively high while the satisfaction rate of the quality was found to be low. The satisfaction from existing Wall-type Furniture System was comparatively higher than that of housing without existing fixtures and fittings but the satisfaction rate of desks was found to be low. Additionally, improvement suggestions were as follows: improvement in quality and its ability to insulate sound.
한성길(Sung Gil Han),신유인(Yoo-In Shin),윤찬헌(Chan Heon Yoon),송철기(Chul Ki Song) 한국기계가공학회 2014 한국기계가공학회지 Vol.13 No.5
A planetary gear train is more compact and endures greater amounts of transmission power compared to other gear systems. Although planetary gear systems operate in small volumes, they are capable of very high efficiency due to the compact combination of their gears in the planetary gear system. They also have outstanding efficiency of only 3% for power transmission, tantamount to the power loss that occurs in each of the shift stages. Given these advantages, planetary gear systems are used in the driving systems of, which are widely used in automobile transmissions, machine tools, semiconductor equipment, and in other areas in industrial fields. Current structural equipment requires higher efficiency and greater torque levels. According to these needs, we have designed a complex planetary gear system which creates higher levels of torque. In this paper, an evaluation of strength designs for the proposed planetary gear system was conducted to ensure the stability of the gear. In addition, a durability analysis based on Miner"s rule was performed using RS B 0095 device.
극저온용 액중펌프의 임펠러 및 샤프트 진동해석에 관한 연구
권병수(Byung Soo Kweon),이치우(Chi-Woo Lee),신유인(Yoo In Shin),이중섭(Chung-Seob Yi) 한국기계가공학회 2017 한국기계가공학회지 Vol.16 No.2
In this research, reverse engineering was applied to the product manufactured by “Vanzetti” from Italy to develop a localized cryogenic submerged pump used in small-scale LNG liquefaction plants. The results of modal analysis of the impeller and shaft confirmed that the resonance frequency of the impeller and shaft played an important role in the rotor. Modal analysis of the rotor confirmed that the forcing frequency had no influence on the resonance phenomenon.
이재구(Jae-gu Lee),김성훈(Sung-Hoon Kim),한성길(Sung-Gil Han),신유인(Yoo-In Shin),송철기(Chul Ki Song) 한국기계가공학회 2020 한국기계가공학회지 Vol.19 No.9
In recent times, fuel economy enhancement and environmental regulation compliance have become the main topics of interest in the automobile industry. Electric vehicles are desirable alternatives to the existing cars that employ internal combustion engines. Specifically, electric vehicles are equipped with inverters, motors, and a gearbox instead of engines and transmission mechanisms. The gearbox is a key component, used to transmit power from the electric motor to the wheel. Therefore, the design of the gearbox is critical. However, most engineers design gears based only on their experience because no standards pertaining to the design factor exist, other than those for the gear ratios. To overcome this problem, the structural stabilities must be examined considering the design factors of the gears. In this study, we considered the module and number of teeth as the main factors. The constraints corresponded to the final gear ratio and fixed distance between each axle of the shafts. Moreover, a structural analysis was conducted, and the variation trend of the maximum equivalent stress against changes in the gear module and number of teeth was examined. By performing such an analysis, the structural stability in the design of a gear system could be effectively investigated.
A Study on Efficiency of Tapered Roller Bearing for an Automatic Transmission
In-Wook Lee(이인욱),Sung Gil Han(한성길),Yoo In Shin(신유인),Chul Ki Song(송철기) 한국기계가공학회 2018 한국기계가공학회지 Vol.17 No.5
Automotive fuel efficiency regulations and air pollution control are hot issues of recent years in the automotive industry. To solve these regulation problems, many studies are continuing to improve the transmission efficiency of transmissions. Tapered roller bearings are useful to improve the transmission efficiency in the recent automobile parts. The frictional losses in the tapered roller bearings are mainly composed of the rolling friction and the sliding friction, and are dependent upon the load, the lubrication, the rotation speed of bearings, and etc. In this paper, the operating conditions of the transmission are defined and then the power losses of each bearing are calculated. In addition, improvement options are suggested after identifying the design factors influenced much by the improvement effect of power loss under the operating conditions of each bearing. We compare the power losses of the entire transmission system due to bearing improvements by comparing the friction losses between the original design and the improved design. Lastly, it is shown that the calculated power losses are valid by comparing the test values and the theoretical values for the frictional torque characteristics of the original and improved bearings.
수치해석을 통한 건설중장비 유압시스템용 파이프설계에 대한 연구
신유인(Yoo In Shin),이중섭(Chung Seob Yi),한성길(Sung Gil Han),이호성(Ho Seong Lee) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.9
We herein propose a systematic design method of hydraulic pipes used in heavy construction equipment. We found that even though many design studies have been conducted regarding major hydraulic components such as pumps, cylinders, and control valves, studies regarding the optimal design of hydraulic pipes are scarce. In this study, the design of four types of pipes is considered: two high-pressure and two low-pressure pipes. First, fluid flow analysis was conducted based on oil flow and pressure for various radii of curvature. For a check-valve pipe, we considered the location of an inlet pipe. We could visualize fluid flow inside the pipe according to the flow velocity and pressure distribution. Based on fluid flow analysis, we conducted a structural analysis that revealed the stress distribution and concentration for each pipe design. We selected the best design parameters for each pipe design, fabricated the pipes, and subsequently tested them for validity.