Due to the need for a significant reduction in the weight of parts in automotive manufacturing, the use of lightweight materials such as magnesium and aluminium is becoming increasingly important. Unfortunately, these...
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Glass is a commonly used material in the MEMS technology. Applications range from usage in the optical data transmission, MOEMS, applications in the micro-fluid analysis and bioengineering, packaging for housing and a...
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ISBN:
(纸本)0955308208
Glass is a commonly used material in the MEMS technology. Applications range from usage in the optical data transmission, MOEMS, applications in the micro-fluid analysis and bioengineering, packaging for housing and as insulating substrate for bonding. Functional structures are mostly applied in array arrangements on the glass wafer following other wafer level processes of the micro system technology. Among the numerous possibilities to structure glass at the surface, high temperature micro forming is one of the economically most favourable processes [1] [2], in particular for the manufacturing of higher quantities with high surface quality. With this technology it is possible to mould functional structures directly into bondable borosilicate glass. Former research results from within this research group on structuring of fluoride glasses [3] had shown the possibility of micro-structuring the material glass by moulding. After improving the equipment technology with respect to achievable forming temperatures up to 800°C, isothermal tempering and accurate controlling of the load transmission, the possibility to microstructure glass wafers of Pyrex®7740 and other borosilicate glasses is proven within a suitable process window.
Complex dynamic systems can be simulated using ANSYS®(ANSYS, Inc., Canonsburg, PA, USA) but for controller design Simulink®(MathWorks, Inc., Natick, MA, USA) is the appropriate software tool. The MATLAB®...
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ISBN:
(纸本)9783902661173
Complex dynamic systems can be simulated using ANSYS®(ANSYS, Inc., Canonsburg, PA, USA) but for controller design Simulink®(MathWorks, Inc., Natick, MA, USA) is the appropriate software tool. The MATLAB®(MathWorks, Inc., Natick, MA, USA) program makeStateSpace, which is introduced in this paper, transfers the results of ANSYS modal analysis into a modal state space formulation that can then be included in Simulink. A model order reduction to diminish the system size is also possible. Hence, with the help of makeStateSpace the advantages of both powerful software tools ANSYS and Simulink can be used for controller design.
This article describes the successful implementation of a modular system concept for ultra precision assembly tasks by means of the accurate alignment of light emitting and receiving modules in front of buried wavegui...
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ISBN:
(纸本)0955308208
This article describes the successful implementation of a modular system concept for ultra precision assembly tasks by means of the accurate alignment of light emitting and receiving modules in front of buried waveguides in optical circuit boards. The constitutive result of a Saxon research project FGM [1] is a modular designed assembling system, that enables vertical fine positioning and gripper integrated angle adjustment in opposition to conventional Surface Mount technology. Today these sensitive components are mounted and adjusted predominantly manually under special laboratory conditions. The technical challenge is to develop new methods and assembling components for high-precision and reproducible packaging in an automated assembling process. This is an important step to reduce the fabrication costs drastically and to smooth the way from a pure laboratory method to an industrial solution concept.
Quality monitoring is necessary for a stable manufacturing, especially in the case of laser welding processes. During the project a system was developed which allows the analysis of in process data by fuzzy pattern re...
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Quality monitoring is necessary for a stable manufacturing, especially in the case of laser welding processes. During the project a system was developed which allows the analysis of in process data by fuzzy pattern recognition methods. This resulted in improved prediction of seam irregularities as compared with conventional methods. The work was carried out in the framework of the MAINE cooperative project funded by the Free State of Saxony.
Requiring many financial institutions to hold a risk-adjusted amount of capital when granting funds, the Basel II framework implies a risk dependent cost of capital for borrowing firms from year-end 2006 onwards. This...
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The attempt to improve mechatronic design processes is hindered by their complexity. The process complexity is mainly caused by an extensive process modularity and by the interdependencies of heterogeneous distributed...
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Complex dynamic systems can be simulated using ANSYS®(ANSYS, Inc., Canonsburg, PA, USA) but for controller design Simulink®(MathWorks, Inc., Natick, MA, USA) is the appropriate software tool. The MATLAB®...
详细信息
Complex dynamic systems can be simulated using ANSYS®(ANSYS, Inc., Canonsburg, PA, USA) but for controller design Simulink®(MathWorks, Inc., Natick, MA, USA) is the appropriate software tool. The MATLAB®(MathWorks, Inc., Natick, MA, USA) program makeStateSpace , which is introduced in this paper, transfers the results of ANSYS modal analysis into a modal state space formulation that can then be included in Simulink. A model order reduction to diminish the system size is also possible. Hence, with the help of makeStateSpace the advantages of both powerful software tools ANSYS and Simulink can be used for controller design.
For the assembly of an inclination sensor, which uses a sensor principle based on micro electrical mechanical system (MEMS) elements, an active assembly strategy was developed. Its aim is the precise orientation of th...
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For the assembly of an inclination sensor, which uses a sensor principle based on micro electrical mechanical system (MEMS) elements, an active assembly strategy was developed. Its aim is the precise orientation of the MEMS relatively to gravity direction, so that no further calibration of the sensor has to be done. Main features are the continuous control of angle signal from the incomplete sensor and a new gripper with tilt function and force limiting kinematics. The assembly strategy as well as the gripper design are described in this paper.
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