Table 2.

Summary of vertical, wind-up, and roll stiffness and stress for Baseline, Iteration 1, and 2.

	Vertical stiffness (N/mm)	Wind-up stiffness (kN·m/degree)	Roll stiffness (kN·m/degree)	Maximum vertical stress (MPa)	Maximum wind-up stress (MPa)	Maximum roll stress (MPa)
Baseline	295	1.82	4.46	800	1198	1450
Iteration 1	281	2.04	4.60	750	1083	1400
Iteration 2	338	2.42	4.73	700	1198	1300