产品几何技术规范在模型定义中的应用

Application of GPS Technology Work to Model Definition

针对基于模型的数字化定义(MBD)在产品几何定义与检测一致性评定中的问题,提出将产品几何技术规范(GPS)理论应用于模型定义中,基于GPS中的对偶性原则建立了应用的解决方案,分析了GPS在模型定义中应用的关键技术,通过面齿轮模型定义实例,来说明GPS在MBD中具体应用,结合面齿轮齿面精度评价实例,说明了GPS技术的应用对产品评定的影响,为GPS和MBD结合应用提供了一种思路。

Aiming at the problem of model based definition （MBD） in the assessment of coherence between product geometry definition and measurement, GPS （geometrical product specification and verification） is proposed to be applied to model definition. The solution scheme is established based on the duality principle of GPS, and key technologies of GPS used in model definition are analyzed. GPS used in MBD is illustrated through face-gear model definition examples. Combined with the example of the face-gear tooth surface accuracy assessment, the impact of product assessment is expatiated. Thus, an idea is provided for the combinative application of MBD and GPS.