non-dimensionalizing a non differential equation

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I am familiar with non-dimensionalizing a differential equation; however I am not familiar with a method to non-dimensionalize a non-differential equation. I just need to arrive to a non-dimensionalized formula. I have attempted it as shown here.

The equation i am trying to non-dimensionalize is as follows.

$$U_{orb} = \frac{\pi H_{rms}}{T_{p}sinh(2kh))}$$

Thank you for the response.

What I am looking for is U_{orb} to be completely dimensionless. so initially what I did to non dimensionalize it was the following:

$$U_{orb} \times\dfrac{T_p}{H_{mo}}$$

the unit of Uorb is $$\dfrac{m}{s }$$

the unit of T_p is $$s$$

the unit of H_rms is $$m$$

the unit of h is $$m$$

the unit of L is $$m$$

$$ U_{orb} = \frac{\pi H_{rms}}{T_{p}sinh(2(\frac{2\pi}{L}))h))}\\$$

$$ H_{rms} = m \;\;[meters]\\$$ $$ T_{p} = s \;\; [seconds]\\$$ $$ h = m \;\;[meters]\\$$ $$ L = m \;\;[meters]\\$$

$$ U_{orb} = \frac{\pi [m]}{[s]sinh(2(\frac{2\pi}{\cancel{[m]}}))\cancel{[m]}))}\\$$ $$ U_{orb} = \frac{\pi [m]}{[s]sinh(4\pi)}\\$$

$$ U_{orb} \times \frac{T_{p}}{H}= \frac{\pi H_{rms}}{T_{p}sinh(4\pi)}\times \frac{T_{p}}{H}\\$$

$$ U_{orb} \times \frac{T_{p}}{H}= \frac{\pi \cancel{[m]}}{\cancel{[s]}sinh(4\pi)}\times \frac{\cancel{[s]}}{\cancel{[m]}}\\$$

$$ U_{orb} \times \frac{T_{p}}{H}= \frac{\pi}{sinh(4\pi)}\\ $$

This is how I was thinking of doing it.