Several models of cylindricity error evaluation,such as MZC,LSC,MCC and MIC,were given,a constriction factor model of the Particle Swarm Optimization(PSO) was introduced.

• 建立了圆柱度误差评价的最小区域法、最小二乘法、最小外接圆柱法和最大内接圆柱法的数学模型,将一种含收敛因子的粒子群优化算法应用于圆柱度误差的目标函数的优化问题。