• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.5
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• pp.672-680
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• 2018

The opening angle of the duct cap assembly during the operation of a refrigerator ice dispenser was evaluated by transient structural analysis, and an improved design to maximize the opening angle was obtained. The opening angle of the existing design was found to be 78% of the upper limit. Several design modifications were proposed and analyzed to examine the effects of the design factors on the opening angle. As a result of the design modifications, the opening angle was improved by changing the lever material to a material with a high elastic modulus, moving the position of the support to the motor side, or increasing the lever shaft diameter. Considering the manufacturing cost of the new design, the design modification changing only the lever material was found to be the best because it does not require a change in the structure of the ice dispenser case. In conclusion, the opening angle can be improved by up to 95% of the upper limit value if the lever material is changed to an aluminum alloy. The methods and results presented in this study were found to be of great help in designing the duct cap assembly structure to facilitate the discharge of ice.

• 대한치과보철학회:학술대회논문집
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• 1995.12a
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• pp.26-26
• /
• 1995

• 대한치과보철학회:학술대회논문집
• /
• 1997.11a
• /
• pp.28-28
• /
• 1997

• 대한치과보철학회:학술대회논문집
• /
• 1997.11a
• /
• pp.27-27
• /
• 1997

• Proceedings of the Culinary Society of Korean Academy Conference
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• 2004.11a
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• pp.209-224
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• 2004

• Journal of KSNVE
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• v.24 no.1
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• pp.17-20
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• 2014

• Journal of KSNVE
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• v.24 no.1
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• pp.21-25
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• 2014

• 베이커리
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• no.3 s.368
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• pp.38-55
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• 1999

• Electrical & Electronic Materials
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• v.21 no.3
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• pp.27-35
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• 2008

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.26 no.2
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• pp.187-194
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• 2016

Parametric study on the lever type dynamic anti-resonance vibration isolator (DAVI) is executed to introduce the system in the path of vibration transmission for the vibratory response attenuation. The effects of inertia and location of the lever on the system performances are investigated using FEA. The effects of other parameters such as ratio of lever lengths, ratio of masses and the location of pivot are studied with analytical approach. According to the results, all the parameters except lever location affect the system response in their own ways. Consequently, the optimal lever type DAVI for translational or rotational system can be efficiently designed by selecting system parameters using the procedure introduced in this study.