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002237
2026-02-23

Calculation of Equivalent Mass per Unit Length for Finite Element Representation, Mode 1

Equivalent Mass per Unit Length calculation for the Finite Element representation

∆sj=1.503.003.00m
∆sj·m(sj,m)=1019.371019.371019.37kg
ϕ1(sj,m)=1.00000.53200.1568x+0.00.00.0y+0.00.00.0z=1.00000.53200.1568
ϕ12(sj,m)=1.00000.53200.15682=1.00000.28300.0246
μeZ,1=∑j=13∆sj·ϕ12(sj,m)·m(sj,m)∑j=13∆sj·ϕ12(sj,m)= ∑1019.371019.371019.37kg·1.00000.28300.0246∑1.503.003.00m·1.00000.28300.0246=1332.95 kg2.42288 m
μeZ,1=550.15 kgm

μeZ,1

Equivalent mass per unit length for Mode 1 in Z-direction
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