Thedeterminationofthefunctionu0(0,τ)ispossiblewhentheequationofstreamcontinuity,representsthestrippassingthroughtheroll-gap,andthevariabilityofthedistancebetweentheworkingrolls,resultsfromthestandlongitudinalvibration,approximatelyofharmoniccharacter,aretakenintoaccount[1].Thesimplecalculationsyieldtotheformulas: