Mea­sure­ments on the clutch, COU­PLING, crank­shaft, dual mass fly­wheel and damper

Prob­lem: crank­shaft tor­sion, clutch slip

Goal: Sup­port for the opti­mal design of clutch, cou­pling, dual mass fly­wheel and damper

Mod­ern engines are becom­ing increas­ing­ly com­pact, pow­er­ful and eco­nom­i­cal. This effect — also known as down­siz­ing — leads to an increase in com­bus­tion pres­sures and a reduc­tion in the mass iner­tia of the crank­shaft in inter­nal com­bus­tion engines. Because this sig­nif­i­cant­ly increas­es rota­tion­al irreg­u­lar­i­ties, clutch and vibra­tion damper man­u­fac­tur­ers are faced with a new chal­lenge.
For this rea­son, it is essen­tial to mea­sure and eval­u­ate crank­shaft tor­sion, clutch slip and the behav­ior of a vibra­tion damper to ensure func­tion­al reli­a­bil­i­ty and ser­vice life of the indi­vid­ual com­po­nents.

In the cou­pling mea­sure­ment speed mea­sure­ment takes place by means of a mag­net­ic sen­sor on the starter ring gear and on the trans­mis­sion input shaft. Main analy­ses are the tor­sion angle between engine (input) and gear­box side, slip, order analy­sis, espe­cial­ly angu­lar accel­er­a­tion in the gear­box (gear­box rat­tling).
In the ROTEC prod­uct port­fo­lio you will find a vari­ety of dif­fer­ent speed sen­sors (laser and mag­ne­tore­sis­tive) suit­able for the instal­la­tion sit­u­a­tion, envi­ron­men­tal con­di­tions and opti­mal sig­nal res­o­lu­tion. In order to be able to mea­sure the tor­sion angle between two speed sig­nals with high res­o­lu­tion, ROTEC offers speed mea­sure­ment boards with 12.3 GHz. At the same time, oth­er ana­log sig­nals with (max. 24 bit and 3.2 MHz) can be record­ed and thus a cor­re­la­tion between tor­sion­al vibra­tions and e.g. noise can be ana­lyzed. The record­ed mea­sured val­ues are eval­u­at­ed in the time and spec­tral domain.

The record­ed mea­sured val­ues are eval­u­at­ed in the time and spec­tral domain.

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.