Structure Fatigue Life Analysis of a 1.5MW Smart Yaw Slewing Bearing

As an important rolling connection of the wind turbine, yaw slewing bearing plays a critical role in the structure reliability. Therefore, effective health monitoring of a slewing bearing to execute timely maintenance or replacement have attracted significant interest. In order to monitor working conditions on line, various sensors have been used. This paper discussed the installation approaches of various sensors in a yaw slewing bearing, and analyzed the effect of local structure change on the fatigue life of a 1.5MW slewing bearing by MSC.FATIGUE, and thus providing an effective reference for structural design of a smart slewing bearing.

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The Analysis and Simulation with the Fatigue Life of Hemispherical Resonator Gyro

Journal of Sensors ◽

10.1155/2021/5564932 ◽

2021 ◽

Vol 2021 ◽

pp. 1-9

Author(s):

Lijun Song ◽

Jiayao Ni ◽

Lei Zhou ◽

Wangliang Zhao ◽

Shaoliang Li ◽

...

Keyword(s):

Residual Stress ◽

Stress Intensity Factor ◽

Fatigue Life ◽

Structural Design ◽

Fused Silica ◽

Ansys Software ◽

Hemispherical Resonator ◽

Life Analysis ◽

Fatigue Life Analysis ◽

Fused Silica Glass

The life and damage of hemispherical resonator are important factors that directly affect the service time and safety of high-precision hemispherical resonator gyro. However, the fused silica glass material used in the hemispherical resonator which was processed in China is mainly imported, and it is too expensive to use the traditional fatigue life experiment, so it is necessary to use the software of fatigue life analysis to analyze its fatigue life. In the paper, the ANSYS software is used to analyze the fatigue life of fused silica hemispherical resonator, to determine the dangerous parts caused by the residual stress to analyze the crack propagation in the fatigue parts, and to obtain the sum stress intensity factor, so as to effectively monitor and prevent the fatigue-prone parts in the process of structural design and use of the hemispherical resonator.

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Fatigue Life Analysis of the Basketball Wheelchair Based on Virtual Prototype Technology

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.538-541.2807 ◽

2012 ◽

Vol 538-541 ◽

pp. 2807-2812 ◽

Cited By ~ 2

Author(s):

Lei Lei ◽

Xiao Chun Shi ◽

Tian Min Guan

Keyword(s):

Fatigue Life ◽

Structural Design ◽

Design Research ◽

Virtual Prototype ◽

Analysis Software ◽

Research Results ◽

Development Level ◽

Life Analysis ◽

Virtual Prototype Technology ◽

Fatigue Life Analysis

In this paper, we use the virtual prototype technology in combination with fatigue life analysis software to analyze the fatigue life of the basketball wheelchair. Through the analysis, we judged the weakest links which influences the fatigue life in the wheelchair structural design. Research results have the vital significance for improving the performance of the basketball wheelchair and the development level of sports.

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Bearing Check Analysis for Automobile Transmission Based on the Software MASTA

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.620.528 ◽

2014 ◽

Vol 620 ◽

pp. 528-533

Author(s):

Yong Xiang Li ◽

Li Hong Jin ◽

Jia Liang Sheng ◽

Fu Jin Yu

Keyword(s):

Fatigue Life ◽

Structural Design ◽

Simulation Modeling ◽

Transmission Performance ◽

Existing Problems ◽

Actual Load ◽

Check Method ◽

Life Analysis ◽

Fatigue Life Analysis ◽

Load Conditions

As the main supporting drive components of the automobile transmission, the transmission bearings are mainly used to support the moving parts installed on the gear shaft, and to ensure the rotary precision of the gear shaft and the rotating parts, which plays an important role on transmission performance. Aiming at the existing problems of the traditional check method of bearing, the objective of this study is to take a five-speed transmission as an example, to accomplish the fatigue life analysis of the bearings of the automobile transmission based on the MASTA software. The simulation modeling of the transmission is built completely to simulate the actual load conditions and complete the process of analysis for the bearings. Analytical results show that using MASTA software can effectively perform the fatigue life analysis of the transmission bearings instead of the general conventional theoretical calculation method in the actual manufacturing process, moreover, the analysis results will provide theoretical basis for the overall optimization structural design of the automobile transmission.

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