基于接触理论的起重机轴系参数化计算平台

Parametric calculation platform of crane shaft based on contact theory

针对传统起重机轴系计算方法不能准确预测考虑弯曲、剪切及挤压接触等因素轴系综合应力的问题,提出一种新的基于接触理论起重机轴系强度计算方法,该方法综合采用结构参数化设计和有限元接触计算法,建立了不同跨度和支撑状态的轴系强度和刚度力学计算模型,并借助有限元软件Ansys等软件开发了一套针对起重机轴系强、刚度和接触应力的参数化计算平台,解决了不同轴系应力计算重复繁琐、设计人员工作量大、效率低等问题,为实际工程设计提供计算方法和设计手段。

Aiming at the problem that traditional crane shaft calculation method is unable to accurately predict and consider the comprehensive shaft stress such as bending, shear, and squeezing contact, etc. , the paper puts forward a new calculation method for crane shaft strength based on the contact theory. With the method, the mechanical calculation model of shaft strength and rigidity in different spans and support states is built by adopting the structural parametric design and fi- nite element contact calculation method. The finite element software such as Ansys is employed to develop a parametric cal- culation platform for crane shaft strength, rigidity, and contact stress, in order to solve those problems including complicat- ed different shaft stress calculations, large workload for designers, and low efficiency, etc. , which provides calculation method and design means for the actual engineering design.