Quantitative Evaluation on Dynamics of Fixturing System

Q2 Engineering

Journal of Machine Engineering Pub Date : 2024-03-13 DOI:10.36897/jme/185894

Raiki Numata, Kotaro Mori, Atsushi Matsubara

引用次数: 0

Abstract

When complex and thin-walled workpieces produced for the aircraft industry are machined, they are supported by fixtures to prevent them from easily deforming or vibrating. To support the workpieces effectively, the stiffness of the fixture should be sufficiently high. However, the criteria required for the fixture dynamics to effectively support a workpiece during machining have not been thoroughly investigated. To minimize trial and error, the design parameters required for the fixture should be determined theoretically. Accordingly, this study proposes a method for theoretically determining the design parameters of a fixturing system. The effect of the substructure thickness on the dynamics of the entire structure was evaluated quantitatively using a theoretical model, and the validity of the model was verified experimentally. The stiffness of the entire fixturing system was estimated using the reacceptance coupling method. In addition, the relationship between the thickness of the substructure and stiffness of the entire structure was evaluated.

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夹具系统动态定量评估

为飞机工业生产的复杂和薄壁工件在加工时需要用夹具支撑，以防止其轻易变形或振动。为了有效支撑工件，夹具的刚度必须足够高。然而，夹具在加工过程中有效支撑工件所需的动力学标准尚未得到深入研究。为了减少试验和误差，应从理论上确定夹具所需的设计参数。因此，本研究提出了一种从理论上确定夹具系统设计参数的方法。利用理论模型定量评估了下部结构厚度对整个结构动态的影响，并通过实验验证了模型的有效性。使用再接受耦合法估算了整个夹具系统的刚度。此外，还评估了下部结构厚度与整个结构刚度之间的关系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Machine Engineering Engineering-Industrial and Manufacturing Engineering

CiteScore

2.70

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： ournal of Machine Engineering is a scientific journal devoted to current issues of design and manufacturing - aided by innovative computer techniques and state-of-the-art computer systems - of products which meet the demands of the current global market. It favours solutions harmonizing with the up-to-date manufacturing strategies, the quality requirements and the needs of design, planning, scheduling and production process management. The Journal'' s subject matter also covers the design and operation of high efficient, precision, process machines. The Journal is a continuator of Machine Engineering Publisher for five years. The Journal appears quarterly, with a circulation of 100 copies, with each issue devoted entirely to a different topic. The papers are carefully selected and reviewed by distinguished world famous scientists and practitioners. The authors of the publications are eminent specialists from all over the world and Poland. Journal of Machine Engineering provides the best assistance to factories and universities. It enables factories to solve their difficult problems and manufacture good products at a low cost and fast rate. It enables educators to update their teaching and scientists to deepen their knowledge and pursue their research in the right direction.