基于振动传递符号有向图的齿轮箱嵌入式传感器优化配置模型与算法

针对嵌入式条件下振动信号的采集方式、传递路径与传统方式不同的特点,采用有限元仿真方法,分析了嵌入式传感下齿轮箱故障振动的传递特性,在此基础上建立了基于故障振动传递符号有向图的优化配置模型,并研究了基于粒子群优化的求解算法.案例仿真结果验证了上述方法的有效性,为在齿轮箱内部合理嵌入传感器提供了一种可行途径.

Model and algorithm of optimal embedded sensors placement for gearboxes based on signed directed graph of vibration propagation

Due to that sampling ways and propagation paths of vibration signals under embedded conditions are much different from those under traditional methods, so in this paper fault vibration propagation characteristics in a gearbox under the condition of embedded sensing are studied based on finite element simulations. Then an optimal placement model is built based on signed directed graph (SDG) of faults vibration propagation of a gearbox and a solution algorithm is proposed based on Particle Swarm Optimization (PSO). In the end an example is presented and simulation results demonstrate that the proposed methods are feasible, which will provide an effective way to embed sensors into a gearbox.