CAJ | 학술논문

国内外震害表明，变压器在地震中的破坏型式多样，易损性极高。隔震技术是一项能够有效降低地震反应的新型抗震技术，而变压器及套管隔震层的设计和参数选择与普通结构有较大的差异。首先，建立了大型电力变压器及套管隔震体系的多质点分析模型，采用Matlab软件编写计算程序，分别输入人工地震波和Taft地震波，对变压器及套管隔震体系的地震响应进行分析；最后，开展了隔震层等效水平网0度、等效阻尼比、双线性恢复力模型的屈服剪力系数及屈服后刚度等参数的地震响应影响分析。分析结果表明：合理设计变压器及套管隔震体系的隔震层参数，可有效降低变压器及套管的地震响应；另外，通过隔震层的参数分析，得到了相关参数的合理取值范围。该研究对今后变压器及套管隔震体系的设计具有参考与指导作用。
국내외진해표명，변압기재지진중적파배형식다양，역손성겁고。격진기술시일항능구유효강저지진반응적신형항진기술，이변압기급투관격진층적설계화삼수선택여보통결구유교대적차이。수선，건립료대형전력변압기급투관격진체계적다질점분석모형，채용Matlab연건편사계산정서，분별수입인공지진파화Taft지진파，대변압기급투관격진체계적지진향응진행분석；최후，개전료격진층등효수평망0도、등효조니비、쌍선성회복력모형적굴복전력계수급굴복후강도등삼수적지진향응영향분석。분석결과표명：합리설계변압기급투관격진체계적격진층삼수，가유효강저변압기급투관적지진향응；령외，통과격진층적삼수분석，득도료상관삼수적합리취치범위。해연구대금후변압기급투관격진체계적설계구유삼고여지도작용。
Seismic damage data and experience in power transformers at home and abroad indicate that transformers will have various forms of destruction and expose high vulnerability during the earthquake. Seismic isolation is a new technology which can effectively reduce seismic response for structure. But there is a large difference between the seismic isolation system of transformers with bushings （SISTB） and the system with general structure in terms of isolation layer design and parameters selection. Firstly, a multi-mass analysis model of SISTB was established and the calculation program was compiled with Matlab software. Then, by inputting artificial and Taft seismic wave, earthquake responses of SISTB were analyzed. Lastly, seismic response effect analysis was carried out with respect to parameters of the isolation layer such as equivalent level stiffness, equivalent damp ratio, yield-shearing force coefficient and yield stiffness. The research shows that the seismic isolation technology is very effective to reduce seismic response of transformers and bushings as long as isolation layer parameters of SISTB are rationally defined. In addition, the rational range of parameters of the isolation layer of SISTB was acquired. In conclusion, researches mentioned above play a reference and guidance role in seismic isolation design for power transformers and bushings in the future.