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局部简化建模法三维有限元仿真与实验研究

Gaoya dianqi, 2019
局部简化建模法即在不影响计算结果精度的要求下,在对实物进行建模时适当地做一些简化处理,对所关心的部件进行精细建模,而对其余部件进行简化建模。为验证局部简化建模法的有效性,文中基于TEAM Problem 21基准族中的P21a-2,P210-B模型,进行了详细地实验研究与仿真分析。重点考察了不同激励下采用局部简化建模法对变压器结构件（如变压器油箱）中杂散损耗、漏磁通密度计算值与测量值之间的对应关系。计算值与测量值具有较好的一致性,从而验证了局部简化建模法的工程适用性。在计算机资源有限的情况下 ...
赵志刚, 史文军, 刘慧敏, 赵捷, 刘福贵   +4 more
doaj  

杂散电感对IGCT-MMC器件关断特性的影响

Gaoya dianqi
MMC子模块内母排杂散电感影响IGCT和二极管关断性能。在分析子模块功率器件开关行为基础上，基于仿真计算，分析了IGCT-MMC子模块内各支路母排杂散电感对IGCT和二极管器件关断特性的影响。对比双脉冲试验和仿真计算结果，验证了仿真模型和分析结论的有效性。结果表明，当母排杂散电感，特别是当主换流回路杂散电感较大时，将显著提高IGCT和二极管的关断过冲电压，以及关断峰值功率和损耗。研究结果可为基于IGCT的MMC换流器优化设计提供参考。
娄彦涛, 刘琦
doaj  

[Research advances of magnetic resonance elastography for assessing the bioinvasiveness in hepatocellular carcinoma]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Ma MY, Li RK.
europepmc   +1 more source

[Diffusion cycle-consistent generative adversarial networks for pelvic active bone marrow segmentation]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhuo L, Zeng M, Tan S, Liang T, Xiao W, Zhen X.   +5 more
europepmc   +1 more source

[Bifunctional biomaterials: An innovative strategy for synergistic bone tumor therapy and bone regeneration]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Feng W, Chang B, Wang C, Fan B.
europepmc   +1 more source

[Swin-ResViT network for real-time generation of high-quality localization MR images from low-quality cine-MR]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Chen B, Wang X, Zhao X, Song T, Li Y.
europepmc   +1 more source

[Research progress of electroactivity graphene-based materials in bone repair]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Kang R, Yuan W, Zhu Y.
europepmc   +1 more source

[Dual-wavelength photoacoustic microscopy for evaluation of microcirculatory dysfunction and spatial heterogeneity in mice with liver fibrosis]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xia Q, Qiu Y, Li H, Nie L.
europepmc   +1 more source

[Collaborative motion control method for dual-arm surgical robots based on hybrid multi-stage optimization]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Lin B, Li K.
europepmc   +1 more source

[Modified <i>Chaihu Shugan</i> Powder alleviates cholesterol gallstones in mice with liver depression syndrome by regulating gut microbiota and bile acid metabolism]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Liang R, Wang H, Li Z, Chen H, Wang Y, Min L.   +5 more
europepmc   +1 more source