He single variable of peak and valley worth, it can not accurately
He single variable of peak and valley value, it cannot accurately describe the characteristics from the load cycle. As a counting technique according to the twoparameter method, the rain flow counting LY294002 supplier process has GSK2646264 manufacturer become a extensively accepted methodAppl. Sci. 2021, 11, x FOR PEER REVIEW3 ofAppl. Sci. 2021, 11,process only considers the single variable of peak and valley worth, it cannot accurately 3 of 13 describe the characteristics of the load cycle. As a counting strategy determined by the twoparameter system, the rain flow counting approach has become a widely accepted strategy for processing random signals and performing fatigue analysis. The rain flow counting for processing random signals and performing fatigue analysis. The rain flow counting approach was proposed by Endo [20] in 1968, after which Rychlik [21] gave the mathematical method was proposed by Endo [20] in 1968, and after that Rychlik [21] gave the mathematical definition of rain flow counting method. The rain flow counting system can directly exdefinition of rain flow counting system. The rain flow counting system can directly tract the load cycles inside the load sequence, and acquire the two parameters of load imply extract the load cycles in the load sequence, and get the two parameters of load mean and amplitude. The load mean and amplitude represent the static strength and dynamic and amplitude. The load mean and amplitude represent the static strength and dynamic strength on the mechanical structure respectively. The rain flow counting approach can obstrength of your mechanical structure respectively. The rain flow counting technique can tain additional full load data that impacts the strength of the mechanical structure, acquire additional full load facts that affects the strength of the mechanical structure, which lays the foundation for the load spectrum design and style and fatigue life prediction with the which lays the foundation for the load spectrum style and fatigue life prediction with the mechanical structure. Also, this process can not simply count the trend of load mechanical structure. Additionally, this strategy can not merely count the trend of load adjustments adjustments but also relate the fatigue characteristics of supplies, so it is actually widely utilized within the but additionally relate the fatigue traits of supplies, so it is actually widely used inside the field of field of fatigue life prediction. fatigue life prediction. Figure 1a may be the strain-time history generated below the action of of alternating load, Figure 1a is definitely the strain-time history generated below the action alternating load, and as well as the corresponding pressure train response of mechanical structure is shown in Figure 1b. the corresponding pressure train response in the the mechanical structure is shown in Figure 1b. Figure 1c shows that the loadobtained by counting rain flow is constant with this. Figure 1c shows that the load cycles cycles obtained by counting rain flow is consistent with this. Therefore, the load cycles extracted by flow counting strategy system can repTherefore, the load cycles extracted by the rain the rain flow counting can represent the resent the stress train response on the mechanical structure. strain train response on the mechanical structure.Figure Principle of rain flow counting method ((a) strain-time history, (b) stress-strain response, Figure 1.1. Principle of rain flow counting approach ((a) strain-time history, (b) stress-strain response, (c) cyclic extraction). (c) cyclic extraction).Spot the obtained load time history as show.
