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.

引用

页数：12

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