Ta yaya ake ƙididdige ƙimar yanayin bazara ($ k$) don bazara mai juyi-juyawa Crest-to-Crest, kuma waɗanne abubuwan gyara ne aka yi amfani da su don halayen da ba na layi ba kusa da ƙasa maras kyau?

Adadin bazara $k$ don bazarar raƙuman ruwa na Crest-to-Crest an samo su ne daga ma'auni na katako wanda aka daidaita don lissafi na madauwari. Tsarin farko shine $k = \ frac {E \cdot b \cdot t^3 \cdot N^4}{I_D^3 \cdot ID \cdot n}$ inda $E$ shine Modulus na Matasa, $ b$ shine bangon radial, $t$ shine kauri na kayan, $ N$ shine adadin raƙuman ruwa a kowane juzu'i, kuma adadin $ n. Koyaya, yayin da bazarar ke gabatowa da tsayinsa mai ƙarfi, ƙimar ta zama marar mizani saboda tasirin 'ƙasa' inda kololuwar igiyoyin suka fara karkata da juna, yadda ya kamata yana rage tsayin katako. Don yin lissafin wannan, injiniyoyi suna amfani da ma'aunin gyara $K$ dangane da rabon $f/h$ (juyawa zuwa tsayin igiyar ruwa). Don ingantattun aikace-aikace a cikin sararin samaniya, ana yin nazarin ƙayyadaddun ƙayyadaddun ƙayyadaddun abubuwan da ba na layi ba (FEA) yawanci don taswirar canjin ƙimar da zarar jujjuyawar ta wuce 80% na tafiye-tafiyen da ake samu.