Đang chuẩn bị liên kết để tải về tài liệu:
Free-body model for tolerance analysis of rigid parts with manufacturing signature and operating conditions

This work shows a free-body model for tolerance analysis, that uses the force free-body diagrams and the functional equations’ sensitivities, by simulating the geometrical tolerances together with the dimensional ones. | Free-body model for tolerance analysis of rigid parts with manufacturing signature and operating conditions Engineering Solid Mechanics 7 2019 279-290 Contents lists available at GrowingScience Engineering Solid Mechanics homepage www.GrowingScience.com esm Free-body model for tolerance analysis of rigid parts with manufacturing signature and operating conditions Wilma Polinia and Andrea Corradoa a Università di Cassino e del Lazio Meridionale Italy A R T I C L EI N F O ABSTRACT Article history This work shows a free-body model for tolerance analysis that uses the force free-body diagrams Received 7 July 2019 and the functional equations sensitivities by simulating the geometrical tolerances together with Accepted 6 August 2019 the dimensional ones. The geometrical tolerances were related to the deviations due to the Available online manufacturing process i.e. the manufacturing signature . Moreover weight and friction forces 6 August 2019 Keywords were simulated too. A sensitivity analysis on the developed free body model aimed to evaluate the Free-body model number of points to discretize the circular bodies and how to calculate the point clouds barycentre Manufacturing signature in order to reduce the simulation time. A case study was used to exemplify the application of the Operating conditions proposed free-body method with and without considering the manufacturing signature. The results Tolerance analysis show that the free body model is able to solve assembly problems and the manufacturing signature Rigid bodies significantly influences the values of the functional requirement on the product and therefore it is impossible to neglect it. 2019 Growing Science Ltd. All rights reserved. 1. Introduction Engineering design widely uses tolerance analysis in order to verify the functionality the manufacturability and the perceived quality of a product. Tolerance analysis estimates the resultant variation of the assembly geometry due to the tolerances applied to the