1.3.14 柔性约束
单击Build > Attachments > Bushing > New命令,弹出创衬套件对话框,如图1-29所示。
(1)部件uca与suspension_to_chassis之间bushing约束。
•Bushing Name(约束副名称):uca_front;
•I Part:._fsae_suspension_rear_axle.gel_uca;
•J Part:._fsae_suspension_rear_axle.mts_suspension_to_chassis;
•Inactive(抑制):kinematic mode(运动学模式);
•Preload:0,0,0;
•Tpreload:0,0,0;
•Offset:0,0,0;
•Roffset:0,0,0;
•Geometry Length:25.4;
•Geometry Radius:12.7;

图1-29 衬套约束对话框-bushing
•Property File:mdids://FASE/bushings.tbl/fsae_control_arm_bushing.bus;用记事本文件打开衬套属性文件,用MATLAB软件绘制在X、Y、Z方向的垂向刚度及扭转刚度,如图1-30、图1-31所示;
•Location Dependency:Delta location from coordinate;
•Coordinate Reference(参考坐标):._fsae_suspension_rear_axle.ground.hpl_uca_front;
•Location:0,0,0;
•Location in:local;
•Orientation Dependency:Orient axis along line;
•Coordinate Reference #1(参考坐标):._fsae_suspension_rear_axle.ground.hpl_uca_front;
•Coordinate Reference #2(参考坐标):._fsae_suspension_rear_axle.ground.hpl_uca_rear;
•Axis:Z;
•单击Apply,完成轴套._fsae_suspension_rear_axle.bkl_uca_front的创建;
•Bushing Name(约束副名称):uca_rear;
•I Part:._fsae_suspension_rear_axle.gel_uca;
•J Part:._fsae_suspension_rear_axle.mts_suspension_to_chassis;
•Inactive(抑制):kinematic mode(运动学模式);
•Preload:0,0,0;
•Tpreload:0,0,0;
•Offset:0,0,0;
•Roffset:0,0,0;
•Geometry Length:25.4;
•Geometry Radius:12.7;
•Property File:mdids://FASE/bushings.tbl/fsae_control_arm_bushing.bus;
•Location Dependency:Delta location from coordinate;
•Coordinate Reference(参考坐标):._fsae_suspension_rear_axle.ground.hpl_uca_rear;
•Location:0,0,0;
•Location in:local;
•Orientation Dependency:Orient axis along line;
•Coordinate Reference #1(参考坐标):._fsae_suspension_rear_axle.ground.hpl_uca_front;
•Coordinate Reference #2(参考坐标):._fsae_suspension_rear_axle.ground.hpl_uca_rear;
•Axis:Z;
•单击Apply,完成轴套._fsae_suspension_rear_axle.bkl_uca_rear的创建;
•Bushing Name(约束副名称):uca_rear;
•I Part:._fsae_suspension_rear_axle.gel_uca;
•J Part:._fsae_suspension_rear_axle.mts_suspension_to_chassis;
•Inactive(抑制):kinematic mode(运动学模式);
•Preload:0,0,0;
•Tpreload:0,0,0;
•Offset:0,0,0;
•Roffset:0,0,0;
•Geometry Length:25.4;
•Geometry Radius:12.7;
•Property File:mdids://FASE/bushings.tbl/fsae_control_arm_bushing.bus;
•Location Dependency:Delta location from coordinate;
•Coordinate Reference(参考坐标):._fsae_suspension_rear_axle.ground.hpl_uca_rear;
•Location:0,0,0;
•Location in:local;
•Orientation Dependency:Orient axis along line;
•Coordinate Reference #1(参考坐标):._fsae_suspension_rear_axle.ground.hpl_uca_front;
•Coordinate Reference #2(参考坐标):._fsae_suspension_rear_axle.ground.hpl_uca_rear;
•Axis:Z;
•单击Apply,完成轴套._fsae_suspension_rear_axle.bkl_uca_rear的创建。

图1-30 衬套垂向刚度

图1-31 衬套扭转刚度
(2)部件lca与suspension_to_chassis之间bushing约束。
•Bushing Name(约束副名称):lca_front;
•I Part:._fsae_suspension_rear_axle.gel_lca;
•J Part:._fsae_suspension_rear_axle.mts_suspension_to_chassis;
•Inactive(抑制):kinematic mode(运动学模式);
•Preload:0,0,0;(https://www.daowen.com)
•Tpreload:0,0,0;
•Offset:0,0,0;
•Roffset:0,0,0;
•Geometry Length:25.4;
•Geometry Radius:12.7;
•Property File:mdids://FASE/bushings.tbl/fsae_control_arm_bushing.bus;
•Location Dependency:Delta location from coordinate;
•Coordinate Reference(参考坐标):._fsae_suspension_rear_axle.ground.hpl_lca_front;
•Location:0,0,0;
•Location in:local;
•Orientation Dependency:Orient axis along line;
•Coordinate Reference #1(参考坐标):._fsae_suspension_rear_axle.ground.hpl_lca_front;
•Coordinate Reference #2(参考坐标):._fsae_suspension_rear_axle.ground.hpl_lca_rear;
•Axis:Z;
•单击Apply,完成轴套._fsae_suspension_rear_axle.bkl_lca_front的创建;
•Bushing Name(约束副名称):lca_rear;
•I Part:._fsae_suspension_rear_axle.gel_lca;
•J Part:._fsae_suspension_rear_axle.mts_suspension_to_chassis;
•Inactive(抑制):kinematic mode(运动学模式);
•Preload:0,0,0;
•Tpreload:0,0,0;
•Offset:0,0,0;
•Roffset:0,0,0;
•Geometry Length:25.4;
•Geometry Radius:12.7;
•Property File:mdids://FASE/bushings.tbl/fsae_control_arm_bushing.bus;
•Location Dependency:Delta location from coordinate;
•Coordinate Reference(参考坐标):._fsae_suspension_rear_axle.ground.hpl_lca_rear;
•Location:0,0,0;
•Location in:local;
•Orientation Dependency:Orient axis along line;
•Coordinate Reference #1(参考坐标):._fsae_suspension_rear_axle.ground.hpl_lca_front;
•Coordinate Reference #2(参考坐标):._fsae_suspension_rear_axle.ground.hpl_lca_rear;
•Axis:Z;
•单击OK,完成轴套._fsae_suspension_rear_axle.bkl_lca_rear的创建。
(3)避震器与suspension_to_chassis之间bushing约束。
•Bushing Name(约束副名称):strut_up;
•I Part:._fsae_suspension_rear_axle.gel_strut_up;
•J Part:._fsae_suspension_rear_axle.mts_suspension_to_chassis;
•Inactive(抑制):kinematic mode(运动学模式);
•Preload:0,0,0;
•Tpreload:0,0,0;
•Offset:0,0,0;
•Roffset:0,0,0;
•Geometry Length:25.4;
•Geometry Radius:12.7;
•Property File:mdids://acar_shared/bushings.tbl/mdi_0001.bus;
•Location Dependency:Delta location from coordinate;
•Coordinate Reference(参考坐标):._fsae_suspension_rear_axle.ground.hpl_strut_up;
•Location:0,0,0;
•Location in:local;
•Orientation Dependency:Orient axis to point;
•Coordinate Reference #1(参考坐标):._fsae_suspension_rear_axle.ground.hpr_strut_up;
•Axis:Z;
•单击Apply,完成轴套._fsae_suspension_rear_axle.bkl_strut_up的创建。
•Bushing Name(约束副名称):strut_lower;
•I Part:._fsae_suspension_rear_axle.gel_strut_low;
•J Part:._fsae_suspension_rear_axle.gel_lca;
•Inactive(抑制):kinematic mode(运动学模式);
•Preload:0,0,0;
•Tpreload:0,0,0;
•Offset:0,0,0;
•Roffset:0,0,0;
•Geometry Length:25.4;
•Geometry Radius:12.7;
•Property File:mdids://acar_shared/bushings.tbl/mdi_0004.bus;
•Location Dependency:Delta location from coordinate;
•Coordinate Reference(参考坐标):._fsae_suspension_rear_axle.ground.hpl_strut_low;
•Location:0,0,0;
•Location in:local;
•Orientation Dependency:Orient axis to point;
•Coordinate Reference #1(参考坐标):._fsae_suspension_rear_axle.ground.hpr_strut_low;
•Axis:Z;
•单击OK,完成轴套._fsae_suspension_rear_axle.bkl_strut_lower的创建。