基于FMEA和FTA的三自由度直角坐标机器人系统可靠性仿真分析

Simulative Research on the System Reliability of a 3-DOF Cartesian-coordinate Robot Based on FMEA and FTA

建立三自由度直角坐标机器人系统的故障模式影响分析(FMEA),定性分析系统潜在的各种故障模式,原因和影响因素,并建立系统的故障树(FTA),运用蒙特卡罗原理定量计算系统可靠性指标,仿真分析系统的可靠性。

The paper establishes the failure mode effect analysis（FMEA） of a 3-DOF Cartesian-coordinate robot system to qualitatively analyse various kinds of potential failure modes, causes and influences, builds the fault tree of the system to calculate the system reliability indexes by using Monte-Carlo theroy, and simulates the system＇s reliability.