Purpose

This study aims to investigate the influence of geometry of bush-pin pair from a perspective of optimal lubrication through a thermal elastohydrodynamic lubrication model for finite line contact.

Design/methodology/approach

A constitutive equation: Ree-Eyring fluid is used in the calculations. The real chain sizes, i.e. equivalent radius of curvature, bush length, length of the rounded corner area and rounded corner radius, are jointed investigated. Moreover, the effects of the length of the rounded corner area and the radius of rounded corner are investigated.

Findings

It is found that the current standard of the chain might not consider the importance of lubrication, and the lubrication state can be improved effectively by choosing an optimal radius of rounded corner and the length of the corner area.

Originality/value

By optimally selecting sizes, the occurrence of high pressure, high temperature rise and near zero film thickness at the ends of bush, especially under heavier load, can be effectively avoided.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-01-2020-0031/

中文翻译：

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通过对工业链的研究来选择衬套销的几何形状来改善热EHL

目的

这项研究旨在通过有限的线接触热弹性流体动力润滑模型，从最佳润滑的角度研究衬套销对的几何形状的影响。

设计/方法/方法

本构方程：Ree-Eyring流体用于计算。联合研究了实际链的大小，即等效曲率半径，衬套长度，圆角区域的长度和圆角半径。此外，研究了圆角区域的长度和圆角半径的影响。

发现

发现链条的现行标准可能没有考虑润滑的重要性，并且通过选择最佳的圆角半径和拐角区域的长度可以有效地改善润滑状态。

创意/价值

通过最佳选择尺寸，可以有效避免衬套端部出现高压，高温升高和接近零膜厚的情况，尤其是在较重的负载下。

同行评审

本文的同行评审历史记录可在以下网址获得：https://publons.com/publon/10.1108/ILT-01-2020-0031/