Prob­lem: Dis­rup­tions in pro­duc­tion

Goal: Reli­able gear­box design

Vibra­tions in paper machine gear­box­es can impair paper qual­i­ty and lead to fre­quent tears in paper feed. These rota­tion­al ener­gies occur in the rolling ele­ment gear unit, in which rollers and cylin­ders (rolling ele­ments) are com­bined. The trans­mis­sion of torque and motion is based on the prin­ci­ple of fric­tion­al lock­ing. When rolling ele­ments are used to guide mate­r­i­al, they must trans­mit a rota­tion­al motion that is as uni­form as pos­si­ble to ensure pre­cise posi­tion­ing of the mate­r­i­al to be guid­ed as well as roll par­al­lelism. This is also the case with print­ing machines, where ink is applied to a mate­r­i­al in sev­er­al lay­ers.

Tor­sion­al vibra­tions can also cor­re­late with the torque sig­nal. To ana­lyze this, the rota­tion­al speed is record­ed with a rotary encoder at the input and out­put shaft. The struc­ture-borne sound sig­nals are record­ed with an accelerom­e­ter on the roll hous­ing. Final­ly, the record­ed mea­sured val­ues are eval­u­at­ed in the time and spec­tral range and the acoustic behav­ior is ana­lyzed.

The record­ed mea­sured val­ues are eval­u­at­ed in the time and spec­tral domain. The acoustic behav­iour is also ana­lyzed.

Fur­ther­more ROTEC ENGI­NEER­ING pro­vides you with sup­port and tech­ni­cal engi­neer­ing know-how for prob­lems relat­ed to vibra­tion analy­sis of engines, trans­mis­sions and dri­ve trains. With our know-how, we make a valu­able con­tri­bu­tion to your prod­uct in the areas of tim­ing gear val­i­da­tion, valve train opti­miza­tion, clutch design, trans­mis­sion errors (TE), trans­mis­sion opti­miza­tion, oil sup­ply opti­miza­tion, pow­er­train mea­sure­ment and opti­miza­tion, cur­rent and volt­age analy­sis, and the appli­ca­tion of mea­sure­ment tech­nol­o­gy.