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Error when Maxwell stress is used as boudary condition for Structural Mechanics.
Posted Feb 12, 2013, 4:23 a.m. EST Low-Frequency Electromagnetics, Studies & Solvers, Structural Mechanics Version 4.3 0 Replies
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I am simulating a Synchronous reluctant machine in 2D. I want to solve for the effect of the magnetic force on the iron core of the machine. First, I made a rmm physics where I define the force calculation as R_Max_F to obtain the Maxwell stress tensor. I then set the Maxwell stress as a body surface boundary condition in a structural mechanics physics in order to study the stress distribution. I used a stationary solver but I obtain this error:
Failed to evaluate variable.
- Variable: mod1.rmm.nTX_R_Max_F
- Geometry: 1
- Domain: 101
Failed to evaluate expression.
- Expression: d(((mod1.spatial.F11*mod1.rmm.nTX_R_Max_F+mod1.spatial.F21*mod1.rmm.nTY_R_Max_F)*test(mod1.u)+(mod1.spatial.F12*mod1.rmm.nTX_R_Max_F+mod1.spatial.F22*mod1.rmm.nTY_R_Max_F)*test(mod1.v) *(dvol),{test@5})
-Feature: Stationary Solver 1 (sol2/s1)
-Error: Failed to evaluate expression.
Please, does anyone know what this means or what I am doing wrong both in the rmm or structural mechanic. Any comment is greatly appreciated. Thanks in advance.
Daniel.
Hello Iruikwu D. O.
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