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Method and system for calibrating surface strengthening coefficient of engine crankshaft fillet

A surface strengthening and engine technology, applied in the field of data processing, can solve problems such as poor precision and long cycle time

Inactive Publication Date: 2022-03-29
JIANGLING MOTORS
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Problems solved by technology

[0005] Based on this, the object of the present invention is to provide a method and system for calibrating the surface enhancement coefficient of the engine crankshaft fillet to solve the problems of the prior art that the period of obtaining the surface enhancement coefficient of the engine crankshaft fillet is long and the accuracy is poor

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  • Method and system for calibrating surface strengthening coefficient of engine crankshaft fillet

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Embodiment Construction

[0047]In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0048] It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

[0049] Unless otherwise defi...

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Abstract

The invention provides a method and system for calibrating a fillet surface strengthening coefficient of an engine crankshaft, and the method comprises the steps: selecting a plurality of engine crankshafts, and carrying out the crank fatigue limit test of the plurality of engine crankshafts in sequence according to a lifting method; first fatigue ultimate bending moments corresponding to the engine crankshafts are obtained, and the average value of the first fatigue ultimate bending moments is calculated; the average value is converted into a second fatigue ultimate bending moment according to a preset algorithm, and a finite element stress analysis model is constructed based on the fatigue testing machine clamping block grid model, the crank throw grid model and the second fatigue ultimate bending moment; and crank throw stress distribution of the second fatigue limit bending moment is calculated according to the finite element stress analysis model, and the surface strengthening coefficient of the engine crankshaft is calibrated based on the crank throw stress distribution and a preset program. According to the method, the strengthening coefficient of the engine crankshaft fillet surface can be accurately obtained, so that the analysis precision of the fatigue strength of the engine crankshaft is improved.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a method and a system for calibrating the surface strengthening coefficient of an engine crankshaft fillet. Background technique [0002] With the development of the times and the advancement of science and technology, cars have become popular in people's lives and become one of the indispensable means of transportation for people to travel, which greatly improves people's travel efficiency and facilitates people's lives. [0003] Among them, in the field of automobile engine technology, the engine crankshaft is one of the important components of the engine, and in the actual driving process of the automobile, the rounded part of the engine crankshaft is the key position most prone to fatigue failure due to stress concentration Therefore, in the manufacturing process, the surface of the crankshaft fillet is strengthened, such as nitriding, rolling, etc., and the degree of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/23G06F111/10G06F119/14G06F119/02
CPCG06F30/17G06F30/23G06F2111/10G06F2119/14G06F2119/02
Inventor 王功成袁晓军曾小春骆旭薇徐颖韬左跃
Owner JIANGLING MOTORS
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