教学中注重培养学生的创新思维

高等学校应当营造良好的创新环境,坚持不懈地探索和实践高素质创新人才培养方法.通过对当前机械类专业教育面临形势的分析,从教材、教师、教学、学校创新氛围等几方面提出培养学生创新思维的方法.     

Validation of vessel seakeeping model tuning algorithm based on measurements at model scale

Wave-induced vessel motion prediction plays a critical role in ensuring safe marine operations. The operational limiting criteria can usually be calculated by applying presumed linearized vessel motion transfer functions based on the specified vessel loading condition, which may deviate from the real vessel condition when the operation is executed. Reducing the uncertainties of the onboard vessel loading condition can therefore improve the accuracy of vessel motion prediction and hence improve the safety and cost-efficiency for marine operations. However, parameters related to the onboard vessel loading condition can be difficult to measure directly, such as the center of gravity and moments of inertia. In addition, the hydrodynamic viscous damping terms are always subject to significant uncertainties and sometimes become critical for accurate vessel motion predictions. A very promising algorithm for the tuning of these important uncertain vessel parameters based on the unscented Kalman filter (UKF) that uses onboard vessel motion measurements and synchronous wave information was proposed and demonstrated previously by application to synthetic data. The present paper validates the UKF-based vessel seakeeping model tuning algorithm by considering measurements from model-scale seakeeping tests. Validation analyses demonstrate rational tuning results. The observed random errors and bias in relation to the measurement functions due to the applied simplification and linearization in the seakeeping simulations can lead to biased tuning. The importance of designing the state space and the measurement space is demonstrated by case studies. Due to the nonlinear relationship between the uncertain vessel parameters and the vessel motions, the tuning is shown to be sensitive to the mean state vector and selection of the surrounding sigma points.     

试论《工程制图》教学中的素质教育与培养

论述了通过《工程制图》课程培养学生的思维方式、表达能力、工作作风以及审美能力的方法。     

关于澳大利亚铁路货车的介绍与思考

简要介绍了考察澳大利亚铁路货车的概况,重点对澳大利亚货车的运输组织、车辆结构、车辆检修、人员培训等方面的内容进行了介绍,并就铁路车辆的基本构造和车辆检修的基本模式提出了一些建议。     

在重新理解马克思哲学的途中——卢卡奇、德拉-沃尔佩、科莱蒂和阿尔都塞的理论贡献

在重新理解马克思哲学的途中,西方马克思主义者卢卡奇、德拉-沃尔佩、科莱蒂和阿尔都塞做出了重要的贡献。卢卡奇开辟了社会存在本体论的研究方向;德拉-沃尔佩和科莱蒂提出了"思维与存在的异质性"问题,阐述了"社会生产关系"理论;阿尔都塞开辟了重新阅读《资本论》的新思路。所有这些新观念都为我们重新理解马克思哲学的实质提供了重要的思想资源。     

崇明越江工程浦东接线立交选型构思

本文着重分析上海崇明越江工程浦东接线段立交选型 ,旨在对大运量道路交通设施如何利用路网分流交通作初步探讨。     

生态建筑形态软化趋向--解读生态建筑形态特征

在生态建筑发展过程中,形态软化趋向日显突出。通过对近年各具代表性的生态建筑形态特征的表述和分析,指出其形态创作的内涵有着理性的思考和科学的依据。     

对高级船员高综合素质要求的几点看法

根据航海技术、知识发展的状况和趋势，高综合素质的高级船员就应该是发现型或创造型的人才，且他们的能力构成中，自学能力、研究能力、思维能力和组织管理能力应占有相当大的比重．     

对浙江省建设大宗战略物资中转与储备基地的思考

论述浙江省建设大宗战略物资中转基地的必要性、可能性、可行性,并提出相关措施及建议。     

关于汽车运用与维修专业试点1+X证书考核的思考

1+X证书制度的确立,有助于产业结构升级,提高学生的职业技能,推动学生职业生涯发展,满足可持续发展的教育要求,想要在1+X证书考核中取得良好的成绩,就需要做好职业教育资源整合,创新传统教学课堂,1+X证书考核需要制定试点目标、选择考核区域,研究1+X证书开发技术方案,通过专业化组织机构进行专业证书的发放,构建信息化考核平台,完善1+X证书审核机制。本文主要探究了汽车运用与维修专业试点1+X证书考核,通过对考核过程的分析,结合专业教学体系和教学模式,助力教学改革。