本文以正常工况信号振动信号为例，通过PSO-VMD对正常工况的振动信号

This article takes the vibration signal of normal working condition as an example, analyzes the vibration signal of normal working condition through PSO-VMD, and obtains the value of Zp, and the change value of Zp is shown in Figure 3. It can be seen from Figure 3 that during the 7th iteration, the value to Zp begins to converge. The PSO algorithm optimizes the value of the double parameter of the VMD to X

In this paper, taking the normal operating signal vibration signal as an example, the vibration signal of normal operating condition is analyzed by PSO-VMD, and the value of Zp is obtained, and the change value of Zp is shown in Figure 3. As can be seen from Figure 3, during the 7th iteration, the value to Zp began to converge. The two-parameter value of VMD is optimized by the PSO algorithm x

Taking the vibration signal of normal working condition as an example, this paper analyzes the vibration signal of normal working condition through pso-vmd to get the value of ZP, and the change value of ZP is shown in Figure 3. As can be seen from Figure 3, during the 7th iteration, the value to ZP begins to converge. The double parameter value of VMD optimized by PSO algorithm is X