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조규백 ( Kyubaek Cho ) 성균관대학교 대동문화연구원 2015 大東文化硏究 Vol.91 No.-
소동파 시는 상당수의 조선조 문인에게 관심과 애호의 대상이었다. 문인들은 소동파에 심취되었으며, 소동파와 같고자 하였다. 나아가 자신들의 시에서 소동파 시를 창조적으로 수용하기도 했다. 조선조 문단의 사조로 보면 고려조의 전례에 이어 전기에는 여전히 소동파를 숭상하는 풍조가 이어졌고, 중기에는 杜甫를 위시한 唐詩를 숭상하였으며, 후기에는 다시 문학과 문화의 방면에서 소동파를 재조명하는 열풍이 불었다. 조선 후기 소동파 열풍은 고려 중후기, 조선 초중기에 걸쳐 맥맥히 흘러온 전통이 소동파를 중시하는 청대의 문예사조와 접맥하여 일어난 새로운 문화현상이다. 긍정적 평가의 경우, 소동파 시가 “神의 경지”에 들어갔으며, 또 소동파 시가 “시로써 禪을 담론하여 禪法을 깨우쳤다.”고 하였다. 부정적 평가의 경우, 소동파 시에는 “典故 사용이 과다하며, 佛敎 용어를 많이 사용하여 새롭고 기이함에 힘썼으나 詩格이 어떠한지는 모르겠다.”고 하였다. 절충적 평가의 경우, 소동파 시가 “기상이 광활하고 격조가 다채로워 杜甫의 법도를 체득하였으나 전고 인용이 너무 많아 지나치게 화려한 단점이 있다.”고 하였다. Su Dongpo``s poetry was an object of attention to Choseon literary people and was loved by them. They were charmed with it and tried to identify themselves with him. Furthermore they introduced creatively Su``s works into their poems. During the early days in the Choseon dynasty, the trend of literature followed in the wake of the Goryeo dynasty and admired him, and in the middle period the literary world regarded Tang poetry, especillay Du Fu``s very highly. In the late Choseon dynasty Su Dongpo fever resurfaced in the aspects of literature and culture. Positive evaluations about him included such comments as "his poetry reached the level of God" or "he talked about Zen and realized the truth of Zen". But he received negative assessment like "he used too many quotations and allusions in his poems" or "he tried to renew poems by using buddhist terms but we did not know well what his poetry really is". The middle point of view included assessment such as the positive side is that his poetry is rich with expansive spirit and follows the customs of Du Fu by using many poetic formations, but the downside is that his poems are showy due to many quotations and allusions.
임규백(KyuBaek Lim),기영중(Youngjung Kee) 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.12
In this paper, dynamic simulations of the blade specimens required for the fatigue test of the composite rotor blades applied to a rotorcraft and the corresponding test load conditions are introduced. The shape of the blade specimen is divided into Attachment part and Airfoil part according to test load application method and fatigue life evaluation position. Fatigue test conditions are realized by centrifugal force and a predetermined ratio of flap and lag moment load. Therefore, the fatigue test simulation based on the finite element analysis is performed to confirm the test conditions to apply the target load to the blade test section. The fatigue test simulation results for both methods using the resonance phenomenon or the bearing support are used to verify the test load condition.
Optimal Design of Flexbeam Cross-Sections using Particle Swarm Assisted Genetic Algorithm
Manoj Kumar Dhadwal,Kyubaek Lim,Sung Nam Jung,Tae Joo Kim 한국항공우주학회 2013 한국항공우주학회 학술발표회 논문집 Vol.2013 No.11
This paper presents the optimal design of flexbeam cross-sections for a full-scale bearingless helicopter. A hybrid optimization algorithm based on the particle swarm optimization and real-coded genetic algorithm is used combined with an effective constraint handling scheme. A new rank-based crossover is developed for the real-coded genetic algorithm based on the mutation operator of differential evolution and heuristic crossover. The suggested crossover operator improves both the efficiency as well as the global exploration of the solutions. The particle swarm optimization is then hybridized with the improved genetic algorithm. Euclidean-distance based niching is implemented in the genetic algorithm to maintain the population diversity. The developed algorithm is used for the design of two configurations of the flexbeam cross-section. The optimal results are obtained within very few function evaluations and less CPU time.