Added mass on tidal turbine blades has the potential to alter the blade dynamic response, such as natural frequencies and vibration amplitudes, as a response to blade acceleration. Currently, most aeroelastic design tools do not consider such effects as they are complex and expensive to model, and they are not an intrinsic part of most blade-element momentum theory codes, which are commonly used in the tidal energy industry. This article outlines the addition of added-mass effects to the National Renewable Energy Laboratory's design tool FAST v8. A verification is presented for a spring-mass system with an initial displacement, and a case study is performed for the Reference Model 1 20-m-diameter tidal turbine. For the 20-m-diameter turbine, it was shown that the natural frequency of vibration is reduced by 65% when added mass is considered. Further, the thrust loads are increased by 2.5% when the blades are excited by a 5% step increase in inflow velocity when added mass is considered. This decrease can have a significant impact on the overall turbine design, as it is important to design the blades with a natural frequency so that they are not excited by the rotor speed and its harmonics, wherein aerodynamic excitation can lead to fatigue damage. However, it was shown that when turbulent inflow with an intensity of 20% was modeled, there was almost no impact on the loads and blade displacement with added-mass effects except for a small difference in the fatigue response of the blade to turbulent load fluctuations.

潮汐涡轮机叶片上的附加质量可能会改变叶片动态响应（例如固有频率和振动幅度），以响应叶片加速度。当前，大多数气动弹性设计工具都没有考虑这种影响，因为它们建模起来很复杂且昂贵，并且它们不是潮汐能行业中常用的大多数叶片要素动量理论代码的固有部分。本文概述了在国家可再生能源实验室的设计工具FAST v8中添加的附加质量效应。提出了具有初始位移的弹簧质量系统的验证，并针对参考模型1直径为20 m的潮汐涡轮机进行了案例研究。对于直径为20 m的涡轮机，研究表明，当考虑增加质量时，固有振动频率降低了65％。此外，当考虑增加质量时，当叶片被流入速度增加5％的步进激励时，推力载荷将增加2.5％。这种降低可能会对整个涡轮机的设计产生重大影响，因为设计具有固有频率的叶片非常重要，这样叶片就不会受到转子速度及其谐波的激励，而气动激励会导致疲劳损坏。但是，结果表明，当对强度为20％的湍流入流进行建模时，除了叶片对湍流负荷波动的疲劳响应的细微差异外，对载荷和叶片位移几乎没有影响并具有附加质量效应。 。这种降低可能会对整个涡轮机设计产生重大影响，因为重要的是设计具有固有频率的叶片，以使叶片不会受到转子速度及其谐波的激励，其中气动激励会导致疲劳损坏。然而，结果表明，当对强度为20％的湍流入流进行建模时，除了叶片对湍流负荷波动的疲劳响应差异较小外，几乎没有对负荷和叶片位移产生附加质量效应的影响。 。这种降低可能会对整个涡轮机的设计产生重大影响，因为设计具有固有频率的叶片非常重要，这样叶片就不会受到转子速度及其谐波的激励，而气动激励会导致疲劳损坏。但是，结果表明，当对强度为20％的湍流入流进行建模时，除了叶片对湍流负荷波动的疲劳响应差异较小外，几乎没有对负荷和叶片位移产生附加质量效应的影响。 。