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Found 4 results

  1. Good morning, I'm running a transient analysis of 2 gears (one of them with a preload and the other one with an imposed rotation). When I run it with Optistruct I get 2 problems: *** ERROR # 4965 *** Maximum number of time increment cutbacks reached, analysis aborted. The biggest problem comes here, if I analysis the results, the contact status is 0 everytime. The gears rotate but they don't seem to have a good contact. Moreover, I get high normal contact forces at points where there should be any contact (see image attached). I also attach the .fem to make it quicker and the .out from the previous simulation Thanks!! 1107rem.out 1207manana.fem
  2. Good morning, I'm running a transient analysis of 2 gears (one of them with a preload and the other one with an imposed rotation). When I run it with Optistruct I get 2 problems: *** ERROR # 4965 *** Maximum number of time increment cutbacks reached, analysis aborted. The biggest problem comes here, if I analysis the results, the contact status is 0 everytime. The gears rotate but they don't seem to have a good contact. Moreover, I get high normal contact forces at points where there should be any contact (see image attached). I also attach the .fem to make it quicker and the .out from the previous simulation Thanks!! 1107rem.out 1207manana.fem
  3. I want to do static analyses on spiral bevel gears to optimize housings for those gears, but I can't seem to get the statics analysis to work. I have been able to do transient motion analyses on the gears (as you can see in the files attached), and I have successfully done statics analyses on regular spur gears. However, when I run a statics motion analysis on spiral bevel gears, I get the error "The static solver was unable to find a static equilibrium position during analysis of this model." I'm guessing that this means I have gear geometries that don't properly mesh. However, I've tried this with several different models that seem to mesh well, so I'm running out of ideas. Attached is one of the models I've tried to analyze. When you do a transient analysis, it runs. When you switch to statics, it fails. Bevel Gears 1.1.stmod
  4. Hello, can you tell me? I am not getting the complete result of my topology optimization. I wanna do topology optimization of the differential case of differential gear box. My FEA analysis is fine but optimization results are showing only in blue and red region form in element density. and how to compare of our final result from our original model that how much material we can or did remove from the model?
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