🍺 Abaqus U1 U2 U3 Meaning

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
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What is the unit of U3 in Abaqus in the result. degree or radian? I performed quasi-static analysis on gears in ABAQUS. After analysis, I extracted the U3 parameter to measure the gear
Abaqus/CAE Usage Load module: Create Boundary Condition: Step: Initial Using the direct format You can choose to enter the degrees of freedom to be constrained directly. Input File Usage Either a single degree of freedom or the first and last of a range of degrees of freedom can be specified.
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).
If you model the part with generalized plane strain elements, you must use the Keywords Editor to apply boundary conditions on the active degrees of freedom (U3, UR1, and UR2) at the reference node of these elements (see Adding unsupported keywords to your Abaqus/CAE model). 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. XASYMM Antisymmetry about a plane with X = constant (U2 = U3 = UR1 = 0;ABAQUS/Standard only). 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).
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
• In the boundary condition module constrain U1, U2, U3 at the entire bottom of the part to zero. Apply a displacement of U1= -0.00254 on the other end of the part. • Create a job and submit and run it (it will take some time to complete, as the mesh has 30000 quadratic elements).

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).

U1, U2, U3 *NODE OUTPUT, NSET=FNDNbase Output to .obd file RF1, RF2, RF3, RM1, RM2, RM3 *ELEMENT OUTPUT, ELSET=ELopt1 SF1, SF2, SF3, SM1, SM2, SM3 ÎCan be post-processed in CAE. Applying Gravity Load 30 28 Change to ABAQUS working directory firstChange to ABAQUS working directory first.
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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.
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
course, and in principle ABAQUS should be able to find them, but it is not coded to do so. To demonstrate that this is the cause of the problem, in the Load module create a new BC that will constrain the displacements on the inner surface of the lowest hole in the wheel (see the figure). Prescribe a displacement U1=U3=0, U2= - 0.005. Then return to
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