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PhD - Improving Machining Productivity Using Inerters

博士 - 使用惰性装置提高加工生产率

基本信息

批准号：
1948992
负责人：
金额：
--
依托单位：
University of Sheffield
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2017
资助国家：
英国
起止时间：
2017 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-1948992
关键词：
PhD Improving Machining Productivity Using

项目摘要

Tuned Inerter Dampers (TIDs) are an exciting new approach to vibration control, that have not yet seen application within a machining context. Inerters are devices that generate a force proportional to the relative acceleration across the device. This is in contrast to a pure mass, where the force is proportional to absolute acceleration. Inerter-based devices such as TIDs can be more lightweight when compared to classical tuned mass dampers. This is particularly relevant to machining applications, because they could be more readily deployed on machine beds, columns, boring bars, or robots. All of these suffer from having payload and space limitations, which justifies the need for compact and lightweight methods for vibration control. Meanwhile, vibration control is a key technology that enables high productivity in machining, due to the constraints imposed by forced and self-excited vibration (e.g. chatter). Consequently this project seeks to develop a tuned inerter damper that is suitable for use in machining applications. The objectives are:1) assess the feasibility of tuning inerters using magnetorheological fluids as the operating medium, thereby proposing the concept of a semi-active inerter.2) develop device sizing and design rules for semi-active inerters 3) experimentally validate the model and design procedures4) assess the suitability for using the device for suppression of undesirable vibrations during machining, such as chatter.

调谐惯性阻尼器（TID）是一种令人兴奋的振动控制新方法，尚未在加工环境中应用。惯性器是产生与装置上的相对加速度成比例的力的装置。这与纯质量相反，纯质量中的力与绝对加速度成比例。与经典调谐质量阻尼器相比，诸如TID的基于惯性器的装置可以更轻。这与机械加工应用特别相关，因为它们可以更容易地部署在机床、立柱、镗杆或机器人上。所有这些都受到有效载荷和空间限制的影响，这证明了对用于振动控制的紧凑和轻量化方法的需求。另一方面，由于受迫振动和自激振动（颤振等）的制约，振动控制成为提高机械加工生产率的关键技术。因此，本项目旨在开发一种适用于机械加工应用的调谐惯性阻尼器。其目的是：1）评估的可行性，调整惯性使用磁流变液作为工作介质，从而提出了一个半主动惯性的概念。2）开发设备的尺寸和设计规则的半主动惯性3）实验验证模型和设计程序4）评估的适用性，使用该设备抑制不希望的振动加工过程中，如颤振。