http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
자기변형현상을 이용하는 MEMS 작동기의 유한요소 모델링
시호문(Ho-Mun Si),조종두(Chongdu Cho) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.8
This paper describes finite element models for MEMS actuators utilizing magnetostriction. The models are proposed to resolve the difficulties encountered in the finite element modeling of magnetostrictive thin film structures of large aspect ratios. They are applied to the bending of the cantilever and the membrane structure coated with magnetostrictive thin films. Their results are compared with those obtained form theoretical calculations and experiments elsewhere.
조계평(Guiping Zhao),시호문(Ho-Mun Si),이흥식(Heungshik Lee),조종두(Chongdu Cho) 한국표면공학회 2004 한국표면공학회지 Vol.37 No.5
This paper describes a three-dimensional transient finite element model for a laser cladding process. In the model, an adaptive finite element technique is used for dilution control. Using the proposed finite element model, the effects of process parameters such as scanning speed, laser's power, and preheating on the dilution of clad layer, the shape of melting pool, and the temperature distribution are calculated. It is also shown that the optimal process parameters for the required dilution can be determined from the proposed finite element model. An experiment is performed to validate the proposed model. The numerical results are compared with experimental ones.