Outline
- Abstract
- Keywords
- 1. Introduction
- 2. Fe Analysis Model for Assembling Wheel Hub Bearing Assembly
- 3. Conclusions
- References
رئوس مطالب
- چکیده
- کلیدواژه ها
- 1. مقدمه
- 2. مدل تحلیل FE برای تراکم مقاومت در مرکز چرخ
- 3.نتیجه گیری
Abstract
In this paper, a computationally efficient finite element analysis model of the rotary forging process for assembling a wheel hub bearing assembly is presented. The analysis model is composed of a part of material defined by two artificial planes of symmetry, which is to reduce computational time taken in simulating the holistic process. Three cases of 30°, 60° and 90° analysis models for simulating rotary forging processes are studied to validate the present finite element analysis model. The predictions at their planes of symmetry and mid-planes are investigated and compared with the experiments, revealing that the predictions at the mid-planes are in good agreement with the experiments for all the cases while those at the planes of symmetry are to the contrary. Thus, the 60° analysis model is recommended for both computational efficiency and solution reliability. With the present finite element analysis model, one hour of computational time with PC can be sufficient enough to obtain valuable information about such rotary forging processes as the wheel hub bearing assembly making process.
Keywords: Finite element method - Hub bearing - Partial analysis domain - Plane of symmetry - Rotary forgingConclusions
A computationally efficient finite element analysis model was proposed for analyzing a rotary forging process. The model is composed of one or two artificial planes of symmetry and a part of material defined by them. The model is based on the assumption that plastic deformation is concentrated on relatively small contact area. The model was employed for simulating a cold rotary forging process of a wheel hub bearing assembly, after local contact area was checked quite small, which is a typical application example of the proposed analysis model. The simulation was conducted using a rigid-plastic finite element method assisted by an intelligent remeshing technique.
Three cases of 30°, 60° and 90° analysis models were studied to validate the present finite element analysis model. The predictions at their planes of symmetry and mid-planes were investigated and compared with the experiments, revealing that the predictions at the mid-planes are in good agreement with the experiments for all the cases while those at the planes of symmetry are more or less different from the actual phenomena. Based on the discussion about the predictions, the 60° analysis model is recommended for both computational efficiency and solution reliability. With the present finite element analysis model, computational time could be reduced drastically.