Assign restraints (U1, U2, U3, R1, R2, and R3) to joint G, then assign displacements obtained from the global model to joint G through Assign > Joint Loads > Displacements. Analyze the local model for the applied displacement loads. So if you define a cylindrical coordinate system, at a particular point U2 = tangential displacement, UR3 = rotation about local "z" axis (axis that runs throught the point of interest and is parallel to the cylindrical coordinate system axis). ABAQUS Scripting Reference Manual u1. A Float, a Complex, or a SymbolicConstant specifying the displacement component in the 1-direction. Note: Although u1, u2, u3, ur1, ur2, and ur3 are optional arguments, at least one of them must be specified. u2. A Float, a Complex, or a SymbolicConstant specifying the displacement component in the Hi Sadeq, In the boundary conditions dialog box, there is an option of choosing coordinate system. If you have chosen (the default) global coordinate system, then U1=Global X, U2=Global Y and U3=Gloabl Z. But you have the choice of selecting any of your own coordinate system, in which case U1,U2,U3 will take on those directions. Regards, NSK A list of the boundary conditions used in ABAQUS. U1, U2 and U3 specify movements along Table 1. UR2 and UR3 specify rotation about the x, y and z axes, respectively. The fundamental units in the SI system are length in meters (m), mass in kilograms (kg), time in seconds (s), temperature in degrees kelvin (K), and electric current in amperes (A). The units of secondary or derived quantities are based on these fundamental units. An example of a derived unit is the unit of force. Toggle on the buttons labeled U1, U2, and U3 to constrain the end of the hinge in the 1-, 2-, and 3-directions. You do not need to constrain the rotational degrees of freedom of the hinge because solid elements (which have only translational degrees of freedom) will be used to mesh the hinge. Abaqus ignores them. If your model is anything similar to figure 3.10 (your attachments), then the boundary conditions at the bottom edge are U1=0, U2=0 and U3=0 ( your Y axis is vertical). All Antisymmetry about a plane with X = constant (U 2 = U 3 = UR 1 = 0; Abaqus/Standard only). YASYMM. Antisymmetry about a plane with Y = constant (U 1 = U 3 = UR 2 = 0; Abaqus/Standard only). ZASYMM. Antisymmetry about a plane with Z = constant (U 1 = U 2 = UR 3 = 0; Abaqus/Standard only). PINNED. Pinned (U 1 = U 2 = U 3 = 0). ENCASTRE YASYMM: Antisymmetry about a plane with Y = constant (U1 = U3 = UR2 = 0;ABAQUS/Standard only). ZASYMM: Antisymmetry about a plane with Z = constant (U1 = U2 = UR3 = 0;ABAQUS/Standard only). PINNED: Pinned (U1 = U2 = U3 = 0). ENCASTRE: Fully built-in (U1 = U2 = U3 = UR1 = UR2 = UR3 = 0). 0PEz5T.