Analytical Expressions of the Efficiency of Standard and High Contact Ratio Involute Spur Gears

Figure 9

Relative error of parabolic approximation of function 𝐼_𝑅𝜂(𝜀_𝛼,𝜆): (a) in estimation of the function 𝐼_𝑅𝜂(𝜀_𝛼,𝜆); (b) in estimation of the efficiency.

(a) 𝐼_{𝑅𝜂approx2}: relative error (𝜆,𝜀_𝛼)

(b) 𝜂_approx2: relative error (𝜆,𝜀_𝛼)