I have been doing calculations on tubesheets using UHX-13. I am using a excel spreadsheet and am looking for excel formulae for the Bessel functions (actually Kelvin functions) [b]ber(x)[b] and [b]bei(x)[b]and their derivatives. Can anyone help - I can only find the BesselY(x,n) and BesselJ(x,n) functions. What is the relationship between ber(x)/bei(x) and BesselY/BesselJ??

Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Congratulations KootK on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

ASME VIII 2004 Part UHX Tubesheet

Thread starter Bartholomew69
Start date Apr 24, 2005

Status: Not open for further replies.

Apr 24, 2005

Bartholomew69

Mechanical

I have been doing calculations on tubesheets using UHX-13. I am using a excel spreadsheet and am looking for excel formulae for the Bessel functions (actually Kelvin functions) ber(x) and bei(x)and their derivatives. Can anyone help - I can only find the BesselY(x,n) and BesselJ(x,n) functions. What is the relationship between ber(x)/bei(x) and BesselY/BesselJ??