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基于教师科研成果的新创本科化学综合实验
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作者 魏磊 刘洪燕 +2 位作者 马麦霞 卢艳红 王瑾 《广州化工》 CAS 2023年第22期126-128,共3页
本实验项目《光照下CoB/C_(3)N_(4)催化硼氢化钠快速水解产氢》源于教师科研成果,为新创本科化学综合实验。该实验融合了无机化学、物理化学、仪器分析等多个学科的知识要点和实验操作,体现了科教融合的理念。通过本实验使学生熟悉硼氢... 本实验项目《光照下CoB/C_(3)N_(4)催化硼氢化钠快速水解产氢》源于教师科研成果,为新创本科化学综合实验。该实验融合了无机化学、物理化学、仪器分析等多个学科的知识要点和实验操作,体现了科教融合的理念。通过本实验使学生熟悉硼氢化钠化学性质及其在制氢领域中应用。通过实验使学生巩固和运用所学理论知识,强化学生的科学思维,培养学生的创新能力及团队合作意识,提高学生的综合素质。 展开更多
关键词 科教融合 新创实验 硼氢化钠 光催化 制氢
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基于新课标与高考评价体系的物理创新实验试题设计及评价 被引量:1
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作者 林胜锅 《中学理科园地》 2023年第5期5-8,共4页
科学探究能力与实验能力差是高中物理教学的难题,其本质是物理学科核心素养与关键能力培育不到位,原因是实验课弱化与实验教学评价反馈不及时不到位,文章从科学探究的课程目标与实验的学业要求、福建省两年新高考的实验试题分析、基于... 科学探究能力与实验能力差是高中物理教学的难题,其本质是物理学科核心素养与关键能力培育不到位,原因是实验课弱化与实验教学评价反馈不及时不到位,文章从科学探究的课程目标与实验的学业要求、福建省两年新高考的实验试题分析、基于课程标准与高考评价体系的物理创新实验试题设计评价与分析、实验课堂教学的建议四个方面谈怎样落实实验教学的“考-教-学”一体化。 展开更多
关键词 新课标 高考评价体系 物理新创实验 试题设计及评价
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基于ZIF-8/WCNT电化学传感器检测呋喃西林在实验教学中的设计与探索 被引量:1
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作者 郭美洁 麻力文 +3 位作者 樊运康 秦建芳 张艳清 杨海英 《大学化学》 CAS 2023年第9期209-217,共9页
介绍一个新创综合实验,基于Zn-甲基咪唑金属有机框架材料(ZIF-8)和碳纳米管(WCNT)电化学传感器检测呋喃西林,包括金属框架材料的合成、传感器制备、测定条件优化、分析方法建立等多个模块。本实验切合本科实验教学需求,涉及分析化学和... 介绍一个新创综合实验,基于Zn-甲基咪唑金属有机框架材料(ZIF-8)和碳纳米管(WCNT)电化学传感器检测呋喃西林,包括金属框架材料的合成、传感器制备、测定条件优化、分析方法建立等多个模块。本实验切合本科实验教学需求,涉及分析化学和材料化学等二级学科,具有较强的交叉性和可拓展性,适合于分析化学实验教学。 展开更多
关键词 新创综合实验 ZIF-8/WCNT 电化学传感器 呋喃西林
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多酸基共价有机骨架材料的合成与氧化脱硫性能研究在实验教学中的设计与探究
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作者 刘世超 李雅宁 +2 位作者 詹宇璇 王晓红 邹小勤 《大学化学》 CAS 2022年第5期88-95,共8页
化石燃料燃烧带来的硫排放将导致酸雨的产生,因而实现燃油深度脱硫显得至关重要。多酸(POM)基共价有机骨架材料具有氧化还原性、可调的亲疏水性、可循环再生等特点,被认为是燃油氧化脱硫的一种优异催化材料。本实验在科研成果的基础上... 化石燃料燃烧带来的硫排放将导致酸雨的产生,因而实现燃油深度脱硫显得至关重要。多酸(POM)基共价有机骨架材料具有氧化还原性、可调的亲疏水性、可循环再生等特点,被认为是燃油氧化脱硫的一种优异催化材料。本实验在科研成果的基础上创新设计了一个综合实验。通过离子交换法将强氧化型多酸分子(NH_(4))_(5)H_(6)PMo_(4)V_(8)O_(40)(简写为PMo_(4)V_(8))引入共价有机骨架(COF),合成了一种多酸基共价有机骨架材料(POM@EB-COF,EB代表溴化乙啶)。利用X射线衍射、红外光谱、元素分析等表征手段对材料结构进行解析。以含有二苯并噻吩的十氢萘作为模型燃油,体系中通入氧气,在PMo_(4)V_(8)@EB-COF固体材料表面进行二苯并噻吩的氧化反应,考察其氧化脱硫性能。研究结果表明,以PMo_(4)V_(8)@EB-COF作为氧化脱硫催化剂,反应温度为100℃,反应时间2.5 h,二苯并噻吩(DBT)的转化率达96.6%,DBT氧化产物砜的选择性达100%,PMo_(4)V_(8)@EB-COF展现出优异的催化性能。本实验涉及多个化学二级学科的知识要点,普及了合成化学与绿色化学的理念,也适用于模块化实验教学以满足不同教学要求,提高了学生的创新意识和综合能力。 展开更多
关键词 多酸 共价有机骨架 氧化脱硫 新创实验
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电沉积法制备磷化钴催化硼氢化钠水解制氢
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作者 魏磊 刘洪燕 +4 位作者 马麦霞 张素玲 景学敏 王东升 刘瑞娜 《广州化工》 CAS 2023年第16期41-43,共3页
新创实验是本科化学实验教学改革的重要方面,是培养具有高素质、创新型化学专业人才的有效途径。结合本团队的近期科研成果和本科化学实验教学需求,设计开发了《电沉积法制备磷化钴催化硼氢化钠水解制氢》实验项目。通过该项目使学生巩... 新创实验是本科化学实验教学改革的重要方面,是培养具有高素质、创新型化学专业人才的有效途径。结合本团队的近期科研成果和本科化学实验教学需求,设计开发了《电沉积法制备磷化钴催化硼氢化钠水解制氢》实验项目。通过该项目使学生巩固和运用所学理论知识;学会使用电沉积法制备金属基催化剂,了解硼氢化钠水解制氢机理和前沿科学动态;培养学生科学探究与创新能力及团队合作意识,提高学生综合能力素质。 展开更多
关键词 新创实验 电沉积 磷化钴 硼氢化钠 催化水解
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淀粉提金——电子废料中金的绿色特异性回收
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作者 简亚军 陈端睿 +5 位作者 郑蘅言 韦婉瑶 高玲香 张伟强 魏灵灵 高子伟 《大学化学》 CAS 2023年第4期216-226,共11页
以学生和公众倍感兴趣的废金回收为实验主题,紧跟科学前沿,基于α-环糊精特异性识别[AuBr_(4)]-原理实现电子废料中金的特异性回收,以此为基础设计新创综合实验。实验通过四步反应实现废弃CPU中金的高效回收:稀硝酸除杂富集金(富金),溴... 以学生和公众倍感兴趣的废金回收为实验主题,紧跟科学前沿,基于α-环糊精特异性识别[AuBr_(4)]-原理实现电子废料中金的特异性回收,以此为基础设计新创综合实验。实验通过四步反应实现废弃CPU中金的高效回收:稀硝酸除杂富集金(富金),溴化钾-醋酸-硝酸-水体系温和氧化金(溶金),α-环糊精选择性识别[AuBr_(4)]-(萃金),无毒非金属还原剂焦亚硫酸钠还原得金单质(成金)。本实验涉及无机化学、超分子化学和分析化学等多学科内容,涵盖反应监测、结构表征、纯度分析在内的合成反应与分析测定的重要操作;实验现象明显且可重复性强,回收金的纯度高达90%以上,教学时长约为6–8 h,适用于本科生综合化学实验教学;融入绿色化学理念,所用试剂环境友好、安全性高,展现了化学解决国计民生实际问题的重要价值;采取线上线下混合式教学,强化探究性环节,培养了学生科研思维和创新意识,提升了化学专业本科生解决复杂问题的综合能力,夯实了化学类人才的培养质量。 展开更多
关键词 新创综合实验 Α-环糊精 超分子识别 电子废弃物 绿色提金
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新创综合化学实验:利用NBS-Py体系从电子废弃物中提取单质金
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作者 黄采薇 高雨婷 +2 位作者 姜薇 杨鹏 魏灵灵 《化学教育(中英文)》 CAS 北大核心 2023年第4期54-60,共7页
将前沿成果引入到大学本科综合实验,设计了利用NBS-Py体系从电子废弃物中提取单质金的新创综合化学实验。以氧化还原和配位理论为指导,利用N-溴代琥珀酰亚胺-吡啶(NBS-Py)体系温和、低毒和高效的特点,从电子废弃物中绿色提取金单质。该... 将前沿成果引入到大学本科综合实验,设计了利用NBS-Py体系从电子废弃物中提取单质金的新创综合化学实验。以氧化还原和配位理论为指导,利用N-溴代琥珀酰亚胺-吡啶(NBS-Py)体系温和、低毒和高效的特点,从电子废弃物中绿色提取金单质。该研究实验包含丰富的知识原理、实验技能、表征技术且应用性强,故可有效地转化为综合教学实验。在浸出、提取、还原、煅烧以及结构表征等过程中,始终贯穿以问题为导向的探究式教学模式。本实验可在提高学生基本实验技能的同时,锻炼学生运用基础理论理解实验原理、设计实验方案、自主探究和协调合作的能力,并在实验实施过程中的每一环节都注重提高学生的科研素养和创新能力。 展开更多
关键词 新创综合实验 N-溴代琥珀酰亚胺-吡啶(NBS-Py)体系 电子废弃物 提取金 实验教学
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Effectiveness of a training program based on maker education for baccalaureate nursing students: A quasi-experimental study 被引量:10
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作者 Kai-Han Yang Zhi-Xia Jiang +2 位作者 Freida Chavez Lian-Hong Wang Chang-Rong Yuan 《International Journal of Nursing Sciences》 CSCD 2019年第1期24-30,共7页
Objectives:Maker education is a dominant force in education reform and is viewed as a revolutionary way to learn.As innovative pedagogy is continuously explored in the field of nursing,the emerging role of maker educa... Objectives:Maker education is a dominant force in education reform and is viewed as a revolutionary way to learn.As innovative pedagogy is continuously explored in the field of nursing,the emerging role of maker education must be examined.This research aims to build a nursing bachelor education program based on maker education and to evaluate the effectiveness of this program.Methods:Forty volunteer junior students majoring in nursing from a college were the subjects for this quasi-experiment.The training program for nursing students based on maker education was developed and implemented as an additional class for a period of 12 weeks.Before and after the experiment,two measures including the"Williams Creative Scale"and"Current Status Questionnaire of Nursing Students'Learning"were adopted for investigation,and corresponding statistical methods were used for analysis.The degree of satisfaction with this training program was investigated after the experiment.Results:The average scores of creativity,learning interest,cooperative learning skill,scientific research ability,and information attainment of the nursing students after the implementation of maker education all improved.The differences in the above points before and after the experiment were all statistically significant(P<0.05).Most of the students expressed satisfaction with this training program(72.5%were very satisfied,15.0%were partially satisfied,and 12.5%were not satisfied).Conclusion:Implementing the training program based on maker education enhanced student creativity,learning interest,cooperative learning skill,scientific research ability,and information attainment.Comprehensive nursing talents were also cultivated.Our data suggested the importance of improving this program,adopting the method,and pursuing research in nursing education. 展开更多
关键词 EDUCATION NURSING BACCALAUREATE Maker education Creative thinking QUASI-EXPERIMENTAL
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GeoQuest Project Computer Class Role Playing Game as Innovative Teaching Methodology to Foster STEAM Education
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作者 Sabina Maraffi Francesco Maria Sacerdoti 《Journal of Environmental Science and Engineering(B)》 2016年第10期495-511,共17页
GeoQuest Project is the design of a new teaching and learning technology based on Computer Class Role Playing Games (RPG) to teach Earth Science in a STEAM educational approach. It ensures interdisciplinarity, multi... GeoQuest Project is the design of a new teaching and learning technology based on Computer Class Role Playing Games (RPG) to teach Earth Science in a STEAM educational approach. It ensures interdisciplinarity, multilinguai approach (CLIL compliance) and interactive activities in classrooms. This educational game uses students' personal tablets and smartphones to interact with the game, with a system more comprehensible and funny for young people compared to traditional methodologies. Students are bringing "in situation" by the adventure, so teachers can get a rigorous assessment of their skills. The Game includes several adventure paths, suitable for different age students. They are focused on scientific topics, humanities, hands-on activities in interdisciplinary way. If used conditions do not allow practical or laboratorial activities provided by the game, players can see some videos to understand the activities. Experimental results were outstanding: the RPG appreciation is in agreement with the experiments outcome. This work experience gets excellent feedbacks by teachers, in terms of efficacy of this new teaching methodology and of results achieving. 展开更多
关键词 Science education education game education technology teaching methodologies STEAM STEM earth science.
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Changes and Innovation of Dutch Building Regulation and Control: An Ongoing Debate
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作者 Nico P. M. Scholten Rob T.H. de Wildt 《Journal of Civil Engineering and Architecture》 2016年第3期359-364,共6页
Dutch building regulation is under construction. After the report of the commission "Fundamentele Verkenning Bouw" in 2008, several studies have been done on the principals that the commission outlined in its report... Dutch building regulation is under construction. After the report of the commission "Fundamentele Verkenning Bouw" in 2008, several studies have been done on the principals that the commission outlined in its report. Local authorities and parties in construction were invited to start experiments with a more privatized system of building control. But this faced a lack of participation, partly due to the impact of the crisis. The minister responsible for housing and construction invited in 2011 a "Bouwteam" to develop an agenda for action for construction. In 2012, 17 action teams started to focus, speed up and simplify the planning and development of construction. Recently, the two teams related to building regulation presented their plans. The first was a roadmap towards private building control, the second, a proposal for an independent body to answer questions on constructions plans that do intrinsically but not legally meet the standards of building regulation. There is considerable controversy regarding the way that this implementation team is paving its path towards private building control. While the minister for housing conformed himself to a subsidized private implementing team, the Dutch Parliament has expressed its own priorities for regulation: insured guarantee to protect users and owners, a role for local authorities regarding safety and acceptance of buildings and simplification of building regulation and control for simple construction works. The parliament held a round-table conference to get informed about private building control. Recently, a proposal by the minister for housing was discussed. Further debate will be needed to decide about the next steps in innovation building regulation, which will take place in the upcoming months. ERB/RIGO (Foundation Expert Centre Regulations in Building/Research Institute for Real Estate) have developed own proposals for the public-private relation regarding development and construction of buildings. They expect that their proposals might be of help. The proposals are laid down in several publications and partly realized in experimental development of "to be approved" technical solutions. This paper reflects on the differences between their proposals and these of the roadmap, on the possible outcome of the ongoing debate and its implications, legal and technical, on building regulation and on legal and contractual liability. This paper tries to give an inside view on the development of regulation and the pros and cons of the proposals, starting from a theoretical outline of building regulation. 展开更多
关键词 Building regulation GOVERNMENT innovation.
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An Investigation of Innovative Experimental and Numerical Techniques to Detect Boundary Layer Transition
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作者 Alessandro Cinciripini Pascal Bader +1 位作者 Giacomo Persico Wolfgang Sanz 《Journal of Mechanics Engineering and Automation》 2017年第4期221-234,共14页
Different methods to detect boundary layer transition are investigated within the scope of this paper. Laminar and turbulent boundary layers exhibit a significantly different behavior, not only regarding skin friction... Different methods to detect boundary layer transition are investigated within the scope of this paper. Laminar and turbulent boundary layers exhibit a significantly different behavior, not only regarding skin friction but also for heat-transfer which affects the blade cooling design. The present work presents a novel and non-intrusive measurement technique to detect the transition, based on acoustic concepts. The reliability of the technique was investigated by means of boundary layer measurements over a fiat plate in subsonic flow conditions. After a preliminary assessment with a conventional Preston tube, a row of microphones were installed along the plate to correlate transition pressure fluctuations. To provide a comprehensive representation of the experiment, dedicated measurements with a fast response aerodynamic pressure probe were performed to determine the turbulence intensity and the dissipation rate upstream of the flat plate. The experimental results were systematically compared with calculations performed with three different computational fluid dynamics solvers (ANSYS-Fluent, ANSYS-CFX, OpenFOAM) and using both the k-k1-ω and the γ-Reθ transition models. Results show a fair agreement between CFD (computational fluid dynamics) predictions and the acoustic technique, suggesting that this latter might represent an interesting alternative option for transition measurements. 展开更多
关键词 Boundary layer transition acoustic measurements CFD Preston tube flat plate
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Research On Construction And Optimization Of Curriculum System To Biological Engineering
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作者 Sun Rui 《International Journal of Technology Management》 2014年第4期64-66,共3页
Curriculum system construction is the core of talent training plan and the key to school operations.This article carried on a more in-depth study and discussion to biological curriculum system construction project,des... Curriculum system construction is the core of talent training plan and the key to school operations.This article carried on a more in-depth study and discussion to biological curriculum system construction project,described the four aspects characteristics of the curriculum,and discussed in the course of system integration, comprehensive and updated curriculum, bilingual education and the strengthening of the four areas to carry out comprehensive, innovative experiments. 展开更多
关键词 biological engineering curriculum system OPTIMIZATION
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Experimental Vehicles Program Aides in Innovative Hands-on Learning Experiences
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作者 Saeed Foroudastan Brigette Prater Thompson 《Journal of Mechanics Engineering and Automation》 2014年第4期253-260,共8页
The EVP (experimental vehicles program) was created in 2004 as an umbrella program for five different undergraduate experimental vehicle design teams. These projects consist of the Solar Vehicle, Moonbuggy, Baja SAE... The EVP (experimental vehicles program) was created in 2004 as an umbrella program for five different undergraduate experimental vehicle design teams. These projects consist of the Solar Vehicle, Moonbuggy, Baja SAE (sina app engine), Formula SAE and Solar Boat. The goal of the EVP is to foster undergraduate student development through hands-on construction of experimental vehicles with the guidance of faculty mentors and partnerships with both national and international industry leaders. Each EVP project performs a vital function in the professional development of students. The projects provide a forgiving environment in which students can test their classroom knowledge in a real-world setting and learn important skills such as leadership, effective communication and working as a team member. Furthermore, the students in the EVP develop highly versatile and qualified skill sets that will allow them to fill various positions within the workplace. In the past, 90% of EVP graduates have been able to obtain highly regarded national and international positions upon graduation due to their real-world experience gained throughout their involvement in the EVP. Each year the EVP sponsors up to 60 interdisciplinary students that come together in peer-led teams to combine and expand upon their classroom knowledge in building innovative vehicles. The successes of the MTSU (Middle Tennessee State University) EVP have been recognized by becoming the national model for hands-on engineering education; helping engineering students take classroom knowledge and apply it to real-world situations. Students work to design, construct, and test novel vehicle designs for participation in national and international competitions. Due to the competitive nature of each of the events, students must use cutting edge technology and design methods in order to create the best entries possible. Often times, this means creating partnerships with industry leaders who help mentor the students from the design conception, the fabrication through the manufacturing of each vehicle. 展开更多
关键词 Innovative vehicles professional development industry partnerships.
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First Exploration on The Reform of Experimental Examination of Physiology in Higher Vocational College Students
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作者 Gao Yinli Zhang Jieqiong +1 位作者 Wang Ya’ning Li Junli 《International Journal of Technology Management》 2017年第1期13-15,共3页
Objective:The purpose of this paper is to explore the application effect of diversified assessment mode in physiology experimental examination of higher vocational college students.Method:We selected 173 higher voca... Objective:The purpose of this paper is to explore the application effect of diversified assessment mode in physiology experimental examination of higher vocational college students.Method:We selected 173 higher vocational college students as the research group,in the experimental assessment,adopted diversi? ed assessment model;and selected 192 higher vocational college students as the control group,adopted the traditional assessment method.The pathological examination scores of the two groups were compared,and the research group was investigated by questionnaire.Result:The physiological end term test scores (t=1.973,p〈0.05) and experimental operation assessment scores of the research group were higher than those of the control group (t=1.624,p〈0.05).The diversified assessment model helps to improve the learning initiative,improve learning interest,foster collaboration and communication ability,reduce learning pressure and reduce anxiety before examination.Conclusion:The diversified assessment model can highlight the cultivation of professional skills and innovation ability,enable students reserve the necessary knowledge through inquiry and cooperative learning,and conducive to sustainable development of students.B 展开更多
关键词 Diversified Assessment Physiology Experiment Higher Vocational College Students
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A policy analysis based on policy network theory in yunnan province
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作者 ZHANG Chi GUO Kai FAN Yuting 《International English Education Research》 2018年第2期77-79,共3页
"Mass entrepreneurship and innovation" as become the new engine of China's economic development. In this paper, based on the policy network theory, to conduct the thorough research to the college students' innovat... "Mass entrepreneurship and innovation" as become the new engine of China's economic development. In this paper, based on the policy network theory, to conduct the thorough research to the college students' innovative undertaking policy in yunnan province, and connecting with the present situation of college students' innovative undertaking in yunnan, through to explain the framework For the college students' innovative undertaking policy change for empirical analysis. In order to further promote the innovation and entrepreneurship of yuunan university students, it also needs to solve the problems of policy overlap, reintroduction, light execution, and long management. 展开更多
关键词 innovation and entrepreneurship policy Policy networkpolicy implementation innovation drive
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How Do Physicists Create Time?
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作者 Fernanda Samaniego 《Journal of Philosophy Study》 2017年第2期93-99,共7页
In the first part of this paper, different perspectives of time proposed in Aristotle's philosophy of nature, classic mechanics, thermodynamics, and the theory of relativity, will be presented. Later on, we explore t... In the first part of this paper, different perspectives of time proposed in Aristotle's philosophy of nature, classic mechanics, thermodynamics, and the theory of relativity, will be presented. Later on, we explore the phenomenological approach of duration by Henri Bergson and Mauro Dorato's naturalistic proposal, which defines the "present" moment based on neuroscientific experiments. In the second part of the paper, the topic of scientific creativity is introduced, paying particular attention to David Bohm's ideas. Finally, the previously analysed perspectives are used to answer the following question: How do physicists create time? 展开更多
关键词 naturalized time CREATIVITY Bohrn Dorato
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Focus on Creating Teaching in Classroom, Cultivate Innovation Ability
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作者 Xiaoping Hu Hong Xie 《Sociology Study》 2015年第9期685-688,共4页
Generative resources are mainly derived from the students (sometimes from the teachers), which is dynamically generated in the students' practice, self-inquiry, and cooperative communication. Gifted children refer ... Generative resources are mainly derived from the students (sometimes from the teachers), which is dynamically generated in the students' practice, self-inquiry, and cooperative communication. Gifted children refer to a group of children who have such characteristics as high IQ (intelligence quotient), strong creativity, and good personality. Their intelligence and capability have great potential for further development. As cognitive ability is one of the prominent characteristics of supernormal children, the lecturers can not only pay attention to teaching knowledge (facts teaching), but also need provide proper opportunities for them to develop their aggressiveness, creativities, and challenges when teaching these children. Because students are active in thinking, in the classroom, students often have some unexpected ideas, that is, the generation of the classroom, in the face of this situation, teachers should be how to do? A joke between students in the class, sparked the interest of a classmate, and then under the teachers' guidance, they invented a chemistry experiment instrument Ω type pipe, illustrated the importance of the teachers focus on creating teaching. 展开更多
关键词 Creating teaching gifted children Ω tube
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Explore innovative development of aero engine experimental platform and equipment
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作者 Liu Ya Liu Jun 《International Journal of Technology Management》 2015年第6期12-14,共3页
The experiment platform of the aeroengine badly needs to develope in the direction of the overall supporting, the database system management and the engineering practice. Experimental means such as the water, electric... The experiment platform of the aeroengine badly needs to develope in the direction of the overall supporting, the database system management and the engineering practice. Experimental means such as the water, electricity and gas systems which support the operation of equipment, and multiple sets of engine components (the compressor, the turbine, the combustion chamber, the structural strength etc.) which support the experimental study of the engine also badly needs to improve in the direction of comprehensive monitoring and system integration to meet the needs of high efficient experiment and management. The experiment platform can make the experimental data and the experimental process be shared in different places in real time. Improving the collaborative ability of design and experiment, improving the automatic level of the experiment and so on all need the computer, the network and the professional and matching application system to support so as to guarantee the security, the stability and the reliability of the experiment, and reduce the risk of the experiment. This paper mainly discusses the main innovative exploration of experimental platform and equipment development about the current aeroengine. 展开更多
关键词 AEROENGINE Experimental Platform Informatization.
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Numerical analysis and experimental investigation of wind turbine blades with innovative features:Structural response and characteristics 被引量:10
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作者 CHEN Xiao QIN ZhiWen +2 位作者 YANG Ke ZHAO XiaoLu XU JianZhong 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2015年第1期1-8,共8页
Innovative features of wind turbine blades with flatback at inboard region,thick airfoils at inboard as well as mid-span region and transversely stepped thickness in spar caps have been proposed by Institute of Engine... Innovative features of wind turbine blades with flatback at inboard region,thick airfoils at inboard as well as mid-span region and transversely stepped thickness in spar caps have been proposed by Institute of Engineering Thermophysics,Chinese Academy of Sciences(IET-Wind)in order to improve both aerodynamic and structural efficiency of rotor blades.To verify the proposed design concepts,this study first presented numerical analysis using finite element method to clarify the effect of flatback on local buckling strength of the inboard region.Blade models with various loading cases,inboard configurations,and core materials were comparatively studied.Furthermore,a prototype blade incorporated with innovative features was manufactured and tested under static bending loads to investigate its structural response and characteristics.It was found that rotor blades with flatback exhibited favorable local buckling strength at the inboard region compared with those with conventional sharp trailing edge when low-density PVC foam was used.The prototype blade showed linear behavior under extreme loads in spar caps,aft panels,shear web and flatback near the maximum chord which is usually susceptible to buckling in the blades according to traditional designs.The inboard region of the blade showed exceptional load-carrying capacity as it survived420%extreme loads in the experiment.Through this study,potential structural advantages by applying proposed structural features to large composite blades of multi-megawatt wind turbines were addressed. 展开更多
关键词 wind energy rotor blade flatback local buckling extreme loads
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