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Use of spatially distributed damper systems in a machine tool

在机床中使用空间分布式阻尼系统

基本信息

批准号：
390684552
负责人：
Professor Dr.-Ing. Christian Brecher
金额：
--
依托单位：
Forschungsbereich Werkzeugmaschinen
依托单位国家：
德国
项目类别：
Research Grants (Transfer Project)
财政年份：
2018
资助国家：
德国
起止时间：
2017-12-31 至 2021-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/390684552?language=en
关键词：
Use spatially distributed damper systems

项目摘要

The dynamic behavior is a deciding factor in modern high-performance machine tools. Mainly for existing machines, passive dynamic auxiliary systems like tuned mass dampers can be used to improve the dynamic compliance by damping specific vibration modes. The advantage of passive systems over active ones is the possibility of a low-cost retrofit due to simple designs and low subsequent costs. Disadvantages include the substantial local mounting space requirements, the iterative and time-consuming commissioning and the vulnerability towards changes in the structural dynamics of the base system.During the first funding period of the preceding research project "Optimal positioning and tuning of multi-mass dampers within a combined topology optimization method", which generated the foundation for this knowledge transfer project, an automated optimal positioning and new analytic tuning method for multi-mass dampers was developed and experimentally verified. By dividing the auxiliary mass over many individually and mutually tuned masses and by spatially distributing them over the structure, the above-mentioned drawbacks of tuned mass dampers shall be alleviated. The effectivity and benefits of multi-mass dampers were successfully verified in a laboratory environment.The goal of this transfer project is to synthesize the gained insights and concepts that were created under academic testing conditions into a product that is suitable for industrial use and which can be tested under operating conditions. Thus, valuable knowledge and insights for further development of the optimal tuning and positioning, especially regarding the process stability, can be fed back into future research.

动态性能是现代高性能机床的决定因素。主要针对现有机器，可以使用调谐质量阻尼器等被动动态辅助系统通过阻尼特定振动模式来改善动态顺应性。被动系统相对于主动系统的优势在于，由于设计简单，后续成本低，可以进行低成本的改造。缺点包括大量的本地安装空间需求，反复和耗时的调试以及对基础系统结构动力学变化的脆弱性。在之前的研究项目“组合拓扑优化方法中多质量阻尼器的优化定位与调谐”的第一个资助期内，开发了一种多质量阻尼器的自动优化定位和新的解析调谐方法，并进行了实验验证。通过将辅助质量划分为许多单独和相互调谐的质量，并将它们在空间上分布在结构上，可以减轻调谐质量阻尼器的上述缺点。在实验室环境中成功验证了多质量阻尼器的有效性和优越性。该转移项目的目标是将在学术测试条件下获得的见解和概念合成为适合工业使用的产品，并可以在操作条件下进行测试。因此，对于优化调谐和定位的进一步发展，特别是关于过程稳定性的宝贵知识和见解，可以反馈到未来的研究中。