Damage Assessment of Hydrokinetic Composite Turbine Blades

被引：0
|
作者：
Watkins, Steve E. [1 ]
Robison, Kevin E. [1 ]
Nicholas, James R. [2 ]
Taylor, Greg A. [2 ]
Chandrashekhara, K. [2 ]
Rovey, Joshua L. [2 ]
机构：
[1] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, 121 EECH,301 W 16th St, Rolla, MO 65409 USA
[2] Missouri Univ Sci & Technol, Dept Mech & Aerosp Engn, Rolla, MO 65409 USA
来源：
NONDESTRUCTIVE CHARACTERIZATION FOR COMPOSITE MATERIALS, AEROSPACE ENGINEERING, CIVIL INFRASTRUCTURE, AND HOMELAND SECURITY 2013 | 2013年 / 8694卷
关键词：
health monitoring; composite blades; strain analysis; smart structures; NEURAL-NETWORKS; SMART STRUCTURES; MODAL-ANALYSIS; PREDICTION;
D O I：
10.1117/12.2009840
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Damage assessment of composite blades is investigated for hydrokinetic turbine applications in which low-velocity impact damage is possible. The blades are carbon/epoxy laminates that are made using an out-of-autoclave process and the blade design is a hydrofoil with constant cross-section. Both undamaged and damaged blades are manufactured and instrumented with strain sensors. Water tunnel testing is conducted with varying flow velocities and for different blade angles. A theoretical simulation is included that is based on finite-element method. The influence of damage on the response characteristics is discussed as an indicator of structural health.
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页数：12
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