一种新型斜爬轨道式擦窗机轮压值仿真优化

The simulation and optimization of wheel pressure about a new building maintenance unit

斜爬轨道式擦窗机是针对连续倾斜屋面设计的一种新型擦窗设备,其行走底盘设计新颖、结构复杂,是整机核心部件.擦窗机工作在倾斜屋面,须保证任何工况下4个轮组同时压向轨道,防止轮压值为负,出现上拔力导致擦窗机出现倾覆,因此,轮压值的设计优化成为了屋面擦窗机的设计重点.针对斜爬擦窗机典型工作状态,对擦窗机底盘进行机构简化并建立力学模型,将模型导入ANSYS Workbench进行有限元分析,结合分析结果进行响应曲面优化.通过轮压值计算和优化分析,给出一种用于斜爬轨道式擦窗机底盘设计的有效方法,满足擦窗机轮压值设计要求,提高整机安全性,为同类产品的设计提供参考.

The oblique climbing track machine is a new type of building maintenance unit which is designed for continuous sloping roof. The design of running chassis which is the core part of the whole machine is fresh and complex. In any case, in order to avoid the wheel pressure value is negative, the window cleaning machine need to press its four wheel group into the rail on the sloping roof, or the equipment will topple over. So the design optimization of wheel pressure has become the focus of the design of the window cleaning machine. For the typical working state of the oblique climbing window clean machine, the mechanism is simplified and the mechanical model is established. The model is imported into ANSYS Workbench for finite element analysis, and the response surface is optimized by the analysis result. Based on the calculation of wheel pressure value and strength analysis,an effective method for the design of a building maintenance unit＇s chassis is presented, which is a reference for the design of the similar products.