Latest Issue
Effect of Different Irrigation Methods on Water Use Efficiency in Rice Soil Column Test
Published: April 30,2025Optimization of Extraction Condition for Oleoresin from Red Pepper Residues
Published: April 30,2025Effect of microwave pretreatment method on essential oil extraction on key lime peel (Citrus × aurantiifolia)
Published: April 30,2025Reducing traffic congestion during flyover construction: A case study of flyover construction at the intersection 2004, Phnom Penh, Cambodia
Published: April 30,2025Effects of Different Bleaching Conditions on Bleaching Efficiency and Physicochemical Characteristics of Cambodian Soybean Oil
Published: April 30,2025Bus Arrival Time Prediction Using Machine Learning Approaches
Published: April 30,2025A Deep Learning Approach for Identifying Individuals Based on Their Handwriting
Published: April 30,2025Utilizing Data Mining And AI To Enhance Cambodian High School Student Performance And Stakeholder Success
Published: April 30,2025Khmer Question-Answering Model by Fine-tuning Pre-trained Model
Published: April 30,2025CNN-based Reinforcement Learning with Policy Gradient for Khmer Chess
Published: April 30,2025The Effect of Vibration Amplitude and Frequency on the Fatigue Life
-
1. Mechanical Engineering Department, Institut de Technologie du Cambodge
Academic Editor:
Received: January 20,2024 / Revised: / Accepted: January 20,2024 / Available online: June 01,2013
In this paper, the relationship between vibration and fatigue life of metal has been investigated. To perform the research, finite element method is used to design two types of steel specimen before the experiment under bending load is conducted on an electro dynamic shaker. In the experiment, the tested frequenciesare around the first natural frequency of the specimens and they are carried out at the frequency ratios r = f/fn (f = excitation frequency, fn = natural frequency) = 0.9010, 0.9792, 1.0000, 1.0200, 1.0900. The frequency ratio is used instead of frequency in order to get rid of the error occurs because the first natural frequencies of the specimens are not exactly the same. The amplitude of the vibration is conducted at the constant acceleration of 10g (g = 9.81m/s2). The results from both finite element method and experiment show that at the constant acceleration with respect to the variation of frequency ratio, the fatigue life increases as the frequency ratio increases.