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| 1 | 径流涡轮叶尖间隙对叶片振动的影响研究显示文摘由于对高效、高响应性涡轮增压器的大量需求,径流涡轮叶片的高周疲劳已成为涡轮增压器损坏的最常见原因。叶尖间隙是主导叶尖泄漏涡演化的关键参数,并影响叶片表面的气动激振力,其对叶片振动的影响不可忽略。本文采用单向流固耦合数值方法,研究无叶径流涡轮叶尖间隙对叶片振动的影响。结果表明,叶片振幅随间隙增大成“V形”变化趋势。广义能量分析表明,“V形”趋势由压力谐波分量的幅值在叶片表面的分布所决定。流场分析进一步表明,压力谐波分量的幅值在叶片压力面和吸力面的分布均受叶尖泄漏涡影响,但两者的机理不同。 | 潘镭 杨名洋 Shouta Murae Wataru Sato Naoto Shimohara Akihiro Yamagata | 2021 | 风机技术2021，63，3： | 2 |
| 2 | Heavy metal contamination of soil and sediment in Zambia显示文摘 | Yoshinori Ikenaka Shouta M M Nakayama Kaampwe Muzandu | 2010 | AfricanJournal of Environmental Science and Technology2010，4，11： | 1 |
| 3 | Heavy metal accumulation in lake sediments, fish (Orechromis niloticus and Serranochromis thumbergi) and crayfish (Cherax quadricarinatus) in Lake Itezhi-tezhi and Lake Kariba, Zambia 显示文摘 | SHOUTA M NAKAYAMA M IKENAKA Y | 2010 | Archives of Environmental Contamination and Toxicology2010，59，2： | 1 |
| 4 | 径流涡轮叶片气动激振机制研究显示文摘径流涡轮叶片的高周疲劳问题严重威胁涡轮增压器的安全运行。学术界针对有叶涡轮的高周疲劳问题开展了广泛研究,但针对无叶涡轮高周疲劳的研究极少。本文采用单向流固耦合数值方法并结合实验测量,研究无叶涡轮叶片的气动激振机制。结果表明,叶片振幅与涡轮负荷成非单调关系,此现象在公开文献中未提及。能量分析表明,叶片吸力面能量的变化趋势是导致振幅与涡轮负荷成非单调关系的直接原因。流场分析进一步表明,叶片吸力面能量变化是由两种涡结构在不同负荷下的相互作用所引起的:叶片前缘的分离涡和叶尖间隙泄漏涡。本研究为设计高可靠性的无叶涡轮提供了理论指导。 | 潘镭 杨名洋 MURAE Shouta SATO Wataru KAWAKUBO Tomoki YAMAGATA Akihiro 邓康耀 | 2022 | 工程热物理学报2022，43，6： | 1 |
| 5 | Human health risks from metals and metalloid via consumption of food animals near gold mines in Tarkwa, Ghana: Estimation of the daily intakes and target hazard quotients (THQs)显示文摘 | Nesta Bortey-Sam Shouta M.M. Nakayama Yoshinori Ikenaka Osei Akoto Elvis Baidoo Yared Beyene Yohannes Hazuki Mizukawa Mayumi Ishizuka | 2015 | Ecotoxicology and Environmental Safety2015，，： | 1 |
| 6 | Regulation of human bone sialoprotein gene transcription by platelet-derived growth factor-BB显示文摘 | Masaru Mezawa Shouta Araki Hideki Takai Yoko Sasaki Shuang Wang Xinyue Li Dong-Soon Kim Youhei Nakayama Yorimasa Ogata | 2009 | Gene2009，，： | 1 |
| 7 | Modelling of a shape memory alloy actuator for feedforward hysteresis compensator considering load fluctuation显示文摘This paper presents a hysteresis mathematical model of a shape memory alloy(SMA)actuator for feedforward hysteresis compensator.The hysteresis model represents the relation between temperature,stress,and electric resistance.Firstly,based on the laws of thermodynamics,the hysteresis model of the SMA actuator is built.Secondly,the inverse of the hysteresis model is obtained to produce a compensator for non‐linear characteristics such as hysteresis and saturation.Thirdly,the parameters of the hysteresis model are obtained from each experiment under constant load and constant temperature,and the model validity is confirmed by comparing experimentally obtained results.Finally,the inverse model is applied to a part of feedforward hysteresis compensator.In order to verify the effectiveness of the proposed model as hysteresis compensator,an electrical resistance control using feedback-feedforward control was conducted by numerical simulation.The simulation results indicate advantages of the proposed mathematical model in hysteresis compensation of SMA actuator,and demonstrate that the model is capable of handling load fluctuation. | Seiji Saito Shouta Oka Ribun Onodera | 2022 | CAAI Transactions on Intelligence Technology2022，7，4： | 1 |
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