Variable cross-sectional effect on bi-directional blades–tower–soil–structure dynamic interaction on offshore wind turbine subject to wind–wave loads

Beni-Suef University Journal of Basic and Applied Sciences

Table 5 Worthiness of variable cross-sectional consideration

Location	Variable CS (m)	Constant CS (m)	Error %
Blade tip in FA direction	1.4758	1.4759	̴0
Blade tip in SS direction	0.0942	0.0944	0.21
Nacelle in FA direction	0.2533	0.2140	15.5
Nacelle in SS direction (Max.)	0.8544	0.7792	8.8
q₇	0.2227	0.1834	17.6
q₈ (Max.)	0.7100	0.6321	12.32