电磁阀讲课课件.ppt

Getting Started:A 2D Magnetostatic Problem a solenoid 电磁阀全文共17页，当前为第1页。 Model 阀帽 铁心 軛 螺线管包括Core、Bonnet、Coil、Plugnut和Yoke，它实际是三维模型，由于模型具有旋转对称性，所以可以简化成右图所示。 电磁阀全文共17页，当前为第2页。 Steps 1. Drawing the Model 2. Defining materials 3. Defining boundary conditions and current sources 4. Requesting that the force on the core 5. computing both a magnetostatic field solution and the force on the core. 6. Viewing the results 电磁阀全文共17页，当前为第3页。 Creating the Project ? To add a project directory, do the following in the Project Manager: 1. Choose Add from the Project Directories area at the bottom-left of the window. The Add a new project directory window appears, listing the directories and subdirectories. ? Create the Solenoid Project ? Open the New Project and Run Maxwell 2D ? De?ne Model Type ? Select the Solver Type 电磁阀全文共17页，当前为第4页。 * De?ne Model Type—Drawing Plane A motor is best modeled by using the XY drawing Plane Since a Solenoid represents a device that is revolved around an axis of symmetry, the solenoid will be drawn in the RZ plane. 电磁阀全文共17页，当前为第5页。 1.Draw Model 电磁阀全文共17页，当前为第6页。 2.Setting Up the Solenoid Model Assign materials with the appropriate material attributes to each object in the geometric model. 设置材料 Define any boundary conditions and sources that need to bespecified, such as the source current of the coil. 定义边界和励磁 Request that the force acting on the core be calculated during the solution.设定求解参数 电磁阀全文共17页，当前为第7页。 3.Assign materials 设置材料 Core Neo35 (Z-direction) Plugnut SS430 Coil Bonnet "ColdRolledSteel“ yoke "ColdRolledSteel“ 电磁阀全文共17页，当前为第8页。 Assign materials Bonnet and Yoke为磁饱和非线性材料，其B-H曲线如上图所示 Add a newmaterial-ColdRolledSteel 电磁阀全文共17页，当前为第9页。 create a new nonlinear material ( SS430) whose relative permeability must be de?ned using a B-H curve. Importing a ss430.bh 可以通过导入数据文件ss430.bh生成BH曲线 电磁阀全文共17页，当前为第10页。 Assign Neo35 to the Core Assign materials 添加永磁材料 电磁阀全文共17页，当前为第11页。 * 4.Boundaries