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.

动态行为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（例如调谐质量阻尼器）（通过抑制特定的振动模式）来提高动态符合性。被动系统比主动系统的优点是由于简单的设计和后续成本较低而进行低成本改造的可能性。缺点包括大量的本地安装空间要求，迭代和耗时的调试以及基本系统结构动态变化的脆弱性。在一种合并的拓扑优化方法中，为该知识转移项目奠定了基础，开发了一种自动化的最佳定位和新的多质量阻尼器分析调谐方法，并通过实验验证了。通过将辅助质量划分为许多单独和相互调整的质量，并在空间上分布在结构上，应缓解上述调谐质量阻尼器的缺点。多质量阻尼器的有效性和好处在实验室环境中已成功验证。该转移项目的目的是将在学术测试条件下创建的获得的见解和概念综合为适合工业用途的产品，并且可以在操作条件下进行测试。因此，可以将最佳调整和定位的进一步发展（尤其是关于过程稳定性）进一步发展的宝贵知识和见解可以重新融入未来的研究中。