Arrangement of Signal Measuring Points of Planetary Gear Transmission Based on Dynamics Simulation

Planetary gear box has complex structure and high failure rate. How to effectively reveal the fault characteristics of the key components in the planetary gear box and find and solve the fault in time is the focus and difficulty of current research. This paper takes the planetary gear meshing system as the research object, combines multi-body dynamics and finite element analysis, considers the transmission path of vibration signals, establishes a rigid-flexible coupling model, analyzes the characteristics and causes of the vibration signals obtained by simulation, seeks the best measuring point position of the vibration acceleration sensor, and verifies the effectiveness of the simulation model through the measured signals.