检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

355 篇 期刊文献
326 篇 会议
2 册 图书

馆藏范围

683 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

524 篇 工学
- 187 篇 机械工程
- 106 篇 冶金工程
- 104 篇 化学工程与技术
- 97 篇 计算机科学与技术...
- 93 篇 材料科学与工程（可...
- 68 篇 软件工程
- 58 篇 力学（可授工学、理...
- 54 篇 动力工程及工程热...
- 48 篇 控制科学与工程
- 44 篇 电气工程
- 34 篇 电子科学与技术（可...
- 32 篇 土木工程
- 25 篇 光学工程
- 22 篇 仪器科学与技术
- 18 篇 生物医学工程（可授...
- 16 篇 轻工技术与工程
- 16 篇 生物工程
- 12 篇 信息与通信工程
- 10 篇 建筑学
- 10 篇 航空宇航科学与技...
264 篇 管理学
- 260 篇 管理科学与工程(可...
- 23 篇 工商管理
214 篇 理学
- 144 篇 物理学
- 55 篇 数学
- 55 篇 化学
- 24 篇 生物学
19 篇 医学
- 14 篇 基础医学(可授医学...
- 10 篇 临床医学
14 篇 经济学
- 14 篇 应用经济学
4 篇 法学
3 篇 教育学
1 篇 军事学

主题

23 篇 machine tools
23 篇 energy efficienc...
18 篇 simulation
14 篇 machine tool
13 篇 production
11 篇 machining
11 篇 sustainable deve...
10 篇 manufacturing
10 篇 tribology
9 篇 condition monito...
9 篇 machine learning
9 篇 finite element m...
9 篇 virtual reality
8 篇 process monitori...
8 篇 finite element m...
8 篇 decision making
8 篇 turning
8 篇 milling
7 篇 optimization
7 篇 process control

机构

71 篇 fraunhofer insti...
35 篇 fraunhofer insti...
32 篇 fraunhofer insti...
29 篇 fraunhofer insti...
24 篇 fraunhofer insti...
23 篇 fraunhofer insti...
18 篇 fraunhofer insti...
17 篇 fraunhofer insti...
16 篇 fraunhofer insti...
16 篇 fraunhofer insti...
15 篇 fraunhofer insti...
14 篇 fraunhofer insti...
14 篇 fraunhofer insti...
13 篇 fraunhofer insti...
13 篇 fraunhofer insti...
12 篇 institute of mec...
12 篇 fraunhofer insti...
11 篇 fraunhofer insti...
11 篇 fraunhofer insti...
10 篇 fraunhofer insti...

作者

56 篇 matthias putz
48 篇 ihlenfeldt steff...
45 篇 steffen ihlenfel...
36 篇 drossel welf-gun...
30 篇 schubert andreas
27 篇 welf-guntram dro...
24 篇 putz matthias
23 篇 schubert a.
20 篇 andreas schubert
19 篇 philipp klimant
17 篇 dix martin
17 篇 martin dix
15 篇 m. putz
14 篇 martin andré
14 篇 edelmann jan
14 篇 dirk landgrebe
14 篇 neugebauer reimu...
12 篇 d. landgrebe
11 篇 matthias hackert...
11 篇 teicher uwe

语言

678 篇 英文
3 篇 其他
2 篇 中文

检索条件"机构=Fraunhofer-Institute for Machine Tools and Forming Technology IWU"

共 683 条记录，以下是21-30 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Modeling the Impact of Laser Powder Bed Fusion on Nd-Fe-B Permanent Magnets

Modeling the Impact of Laser Powder Bed Fusion on Nd-Fe-B Pe...

引用

2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023

作者： Thielsch, Juliane Bittner, Florian Drossel, Welf-Guntram Fraunhofer Institute for Machine Tools and Forming Technology Iwu Dresden01187 Germany Chemnitz University of Technology Institute for Machine Tools and Production Processes Chemnitz09126 Germany

ISBN: (纸本)9798350338362

Statistical modelling was successfully applied to Laser Powder Bed Fusion (LPBF) of Nd-Fe-B permanent magnets to identify the potential impact of different process parameters and their interactions on resulting magnetic properties. Process models for the magnetic properties coercivity Hc, remanence Jr as well as for the shape of the demagnetization curve are obtained. The model quality for Hc is excellent (R2 = 0.99). The model for Jr only allows a rough statement on the impact of the LPBF process due to a weaker quality of the model (R2 = 0.77). It will not be possible to maximize Hc and Jr of LPBF manufactured Nd-Fe-B magnets at the same time due to their contrary dependencies on different LPBF parameters. We have predicted an optimized parameter set with a resulting high Hc of 816 kA/m and a maximized Jr of 0.65 T. From these properties and the calculated shape of the demagnetization curve we predict a (BH)max of 60.77 kJ/m3 for a magnet processed on a LPBF machine AconityMINI using MQP™-S powder. © 2023 IEEE.

关键词： Permanent magnets

来源：评论

学校读者我要写书评

暂无评论

Energy self-sufficient, multi-sensory tool holder for sensitive monitoring of milling processes 19

Energy self-sufficient, multi-sensory tool holder for sensit...

引用

19th CIRP Conference on Modeling of Machining Operations, CMMO 2023

作者： Schuster, Alexander Rentzsch, Hendrik Ihlenfeldt, Steffen Fraunhofer Institute for Machine Tools and Forming Technology IWU Reichenhainer Str. 88 Chemnitz09126 Germany

Machining processes, especially milling, place several requirements on monitoring systems. Two prevalent ones are minimal implications towards the machine tool system and direct proximity to the machining zone to acquire high signal quality. Thereby, sensitive detection of even minor process alterations is enabled. This paper presents a suitable monitoring approach based on a sensory tool holder. An innovative wireless energy harvesting technology using spindle rotation is implemented. Obtained signal data for exemplary milling processes as well as corresponding signal analysis strategies are presented. © 2023 Elsevier B.V.. All rights reserved.

关键词： Cutting tools

来源：评论

学校读者我要写书评

暂无评论

Tool wear monitoring in milling processes using a sensory tool holder 23

Tool wear monitoring in milling processes using a sensory to...

引用

23rd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2023

作者： Schuster, Alexander Otto, Andreas Rentzsch, Hendrik Ihlenfeldt, Steffen Fraunhofer Institute for Machine Tools and Forming Technology IWU Reichenhainer Str. 88 Chemnitz09126 Germany

ISBN: (纸本)9781998999132

In-process monitoring in milling, specifically tool condition monitoring (TCM), is an important technology for improving productivity and workpiece quality. However, industrial implementation of in-process TCMs remains a difficult task, since progressing tool wear is indicated by small changes of various physical parameters. Therefore, a sensitive monitoring system is needed to provide a reliable base of information while having minimal impact on the machine tool system and processes. Recent advancements in deep learning (DL) techniques are frequently applied on monitoring data for tool wear prediction as they can process and analyse raw data without prior feature engineering. This paper presents a suitable monitoring approach based on a recently developed sensory tool holder, which measures cutting forces and vibrations in direct proximity to the process zone. The system is equipped with wireless data transmission and a novel energy harvesting technology for energy supply. Two milling experiments with focus on increasing tool wear were conducted and the collected data processed. A DL based model, comprising three convolutional neural network (CNN) layers, one long short-term memory (LSTM) layer, and a multi-layer perceptron (MLP), was trained on the raw sensor signals to make predictions on the tool wear state. The model was evaluated using previously unseen test data and achieved a high prediction accuracy of at least 97,3% for all sensor signals, with the highest accuracy of 99,9% achieved when using bending moment signals. © 2023 Euspen Headquarters.

关键词： Milling (machining)

来源：评论

学校读者我要写书评

暂无评论

Integrating Hybrid Physics-Data Approaches for Enhanced Cutting Force Modeling in Digital Twins of Helical End Mills 20

Integrating Hybrid Physics-Data Approaches for Enhanced Cutt...

引用

20th CIRP Conference on Modeling of Machining Operations in Mons, CIRP CMMO 2025

作者： Jing, Yuan Gong, Guanchen Hänel, Albrecht Ihlenfeldt, Steffen Fraunhofer Insitute for Machine Tools and Forming Technology IWU Chemnitz Germany Chair of Machine Tools Development and Adaptive Controls Institute Fo Mechatronic Engineering Technische Universität Dresden Dresden Germany

Industry 4.0 has significantly improved data efficiency by leveraging key technologies such as the Internet of Things and machine Learning. Among these key technologies, digital twins stand out by offering a promising approach to intelligently utilize this data. In the virtual representation of a physical asset, data reflects the conditions of the physical entity, while models simulate and predict its behavior. In this paper, a hybrid cutting force model is proposed for digital twins of helical end mills, focusing on cutting force analysis during the utilization phase of the machining process. This model combines a fairly mature physical process modelling approach with a data-driven method, specifically a neural network trained on real process data, to address the limitations inherent in their respective applications. The physics-based model provides meaningful constraints on the neural network's training, ensuring reliable cutting force prediction, particularly in scenarios with limited process data availability. The cutter's profile, generated by the geometric model, and the cutter-workpiece engagement maps, derived from the virtual machining model, together serve as inputs for the hybrid cutting force model. © 2025 The Author(s).

关键词： Machining centers

来源：评论

学校读者我要写书评

暂无评论

Pattern matching for mathematical expressions with OpenMath 14

Pattern matching for mathematical expressions with OpenMath

引用

Joint of the 5th Workshop on Formal Mathematics for Mathematicians, FMM 2019, 2nd Workshop on Formal Verification of Physical Systems, FVPS 2021, 13th Workshop on Mathematical User Interaction, MathUI 2021, 2021 Workshop on Natural Formal Mathematics, NatFoM 2021, and 31st OpenMath Workshops, OM 2021 Doctoral Program and Work in Progress at the 14th Conference on Intelligent Computer Mathematics, CICM-WS 2021

作者： Wenzel, Ken Fraunhofer-Institute for Machine Tools and Forming Technology IWU Chemnitz Germany

An OpenMath Content Dictionary with symbols for pattern matching of tree-like structures is presented. Furthermore, a mapping to RDF and SPARQL is introduced that allows to execute search queries against an OpenMath R... 详细信息

关键词： Pattern matching

来源：评论

学校读者我要写书评

暂无评论

Reducing noise and vibrations in wind power plants with DFIG and planetary gearbox through improved rotor current control 56

Reducing noise and vibrations in wind power plants with DFIG...

引用

56th International Conference on Vibroengineering

作者： Windisch, Thomas Hensel, Eric Drossel, Welf-Guntram Fraunhofer-Institute for Machine Tools and Forming Technology IWU Chemnitz Germany

Planetary gears in wind power plants transmit force excitations to the mechanical structure due to alternating tooth meshes. Structure-borne sound is generated and proceeds to tower and nacelle where it is radiated to the environment and may be a noise pollution to residents. In addition, unwanted vibrations can decrease the durability of the gearbox. So far, structural vibrations are being avoided by constructive measures or active absorbers. In contrast to this, our approach is to reduce gear mesh excitations only with the existing electric generator. Therefore, the rotor current control of the machine is enhanced to inject high frequency oscillations so that the wind power generator produces a specific oscillating torque. This anti-noise torque ripple is transmitted via the shaft to the gear stage and minimizes the gear mesh orders so that less force excitations are exposed to the mechanical structure at the bearings. In our knowledge this anti-noise torque approach using the electric generator and its current control is completely new in the field of wind power plants. Simulation is performed using a multi-body-model of the drivetrain to identify an optimal torque oscillation. Afterwards a control circuit model of the generator and the power converter for the rotor circuit is shown. Hence, it is possible to calculate the behavior of the system in high level of detail on the mechanical and the electrical side. Resulting bearing forces are analyzed to prove that excitation can be reduced significantly. No additional hardware, especially no additional actor is needed. Copyright © 2022 Thomas Windisch, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

关键词： Acoustic noise

来源：评论

学校读者我要写书评

暂无评论

Simulation concept for surface designs increasing the coefficient of static friction 22

Simulation concept for surface designs increasing the coeffi...

引用

22nd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2022

作者： Walther, Franz Wieland, Sebastian Schneider, Jörg Edelmann, Jan Fraunhofer Institute for Machine Tools and Forming Technology IWU Chemnitz Germany

ISBN: (纸本)9781998999118

The objective of the simulation concept for the design of surfaces is the prediction of trends relating to the coefficient of static fric-tion of two friction partners. For the overall consideration, further influencing variables have to be considered, since an exclusive focus on the coefficient of static friction can only inadequately describe the complex tribological behaviour when two surfaces come into contact. To calculate these characteristic values, a multi-stage simulation and calculation approach was developed in which, starting from the generation of experimentally measured or artificially generated surface topography data (stage 1), the true contact area as well as the stress and deformation behaviour when two surfaces come into contact are simulated in contact simula-tions (stage 2). Finally, the coefficient of static friction is calculated based on a micro-roughness model taken from the literature and statistical homogenization (stage 3). The accuracy and validity of the workflow was demonstrated in the experimental valida-tion using ground sample surfaces. Trends with regard to the coefficients of static friction were reliably represented. In addition a method for generating synthetic stochastic surfaces as simulation input was developed. Due to the given comparability with experi-mental surfaces in terms of the geometric properties and the resulting friction behaviour, virtual surfaces can also be used in the future as input of the multistage calculation workflow and applied in simulative parameter studies. © European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 22nd International Conference and Exhibition, EUSPEN 2022. All rights reserved.

关键词： Surface roughness

来源：评论

学校读者我要写书评

暂无评论

OpenMath-RDF: RDF encodings for OpenMath objects and Content Dictionaries 14

OpenMath-RDF: RDF encodings for OpenMath objects and Content...

引用

作者： Wenzel, Ken Fraunhofer-Institute for Machine Tools and Forming Technology IWU Chemnitz Germany

This paper presents RDF encodings for OpenMath objects and Content Dictionaries that allow mathematical objects and symbol definitions to be first-class citizens on the Web of Data. © 2022 Copyright for this pape... 详细信息

关键词： Encoding (symbols)

来源：评论

学校读者我要写书评

暂无评论

Experimental setup for long term high-precision static friction tests for clamping systems of rotary tables in cutting machine tools 23

Experimental setup for long term high-precision static frict...

引用

23rd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2023

作者： Wieland, Sebastian Zschech, Richard Schneider, Jörg Müller, Jens Edelmann, Jan Fraunhofer Institute for Machine Tools and Forming Technology IWU Chemnitz Germany Dresden University of Technology Institute Of Mechatronic Engineering Dresden Germany

ISBN: (纸本)9781998999132

The objective of the scientific investigation is the determination of the coefficient of static friction for clamping systems of rotary tables in cutting machine tools. New developments in this field of research are able to lead to an enhancement in tolerable cutting forces and machine accuracy or to the minimization of the required clamping forces and the constructed space too. In this context the requirement profile of the investigated clamping systems is more than complex. Since they have an immediate influence on the machine accuracy only smallest movements between the friction partners in the range of a few micrometres are tolerable. Furthermore a clamping system needs to withstand more than 100,000 clamping cycles and also braking applications in case of emergency. Against this background an experimental setup consisting of two testing benches was developed. The first testing bench offers the possibility of quick measurements of the coefficient of static friction by a linear movement to investigate a high number of different samples for a selection process. The second test bench in addition offers the possibility of testing the relevant samples by a torsional load for more than 100,000 clamping cycles and in braking applications. In a study the two test benches are validated and compared against each other based on a state of the art clamping system of a tempered steel on the basis of the determined coefficients of static friction. In addition the results of the long term friction experiments and the observed wear are discussed. © 2023 Euspen Headquarters.

关键词： Wear of materials

来源：评论

学校读者我要写书评

暂无评论

Intelligent dressing for continuous generating grinding with convolutional neural networks and knowledge distillation 17

Intelligent dressing for continuous generating grinding with...

引用

17th CIRP Conference on Intelligent Computation in Manufacturing Engineering, CIRP ICME 2023

作者： Boesler, Martin Schumann, Marco Klimant, Philipp Dix, Martin Fraunhofer Institute for Machine Tools and Forming Technology IWU Reichenhainer Straße 88 Chemnitz09126 Germany Institute for Machine Tools and Production Processes Chemnitz University of Technology Reichenhainer Str. 70 Chemnitz09126 Germany

Continuous generating grinding is a highly productive and precise way to finish hardened gears. However, the dressing of the tool has a huge potential for optimization. Detecting the optimal point to stop the dressing process would save cost and reduce machine downtime. This paper provides a proof of concept of how machine learning models can achieve these goals based on acoustic emission data. Therefore, different ML-Classifiers were trained and compared. Particular emphasis was placed on the robustness of the models. In addition, the trade-off between fast and robust models was examined. © 2024 Elsevier B.V.. All rights reserved.

关键词： Convolutional neural networks

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共69页 << < 1 2 3 4 5 6 7 8 9 10 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：