Geometric optimization design and performance test of 1-D circular phased array probes for wind turbine bolts detection

2021 ◽  
Author(s):  
Ma Junpeng ◽  
Yue Xianqiang ◽  
Liu Xubi ◽  
Chi Yongbin ◽  
Lin Shaochen
Keyword(s):  
Wind Turbine ◽  
Optimization Design ◽  
Performance Test ◽  
Phased Array ◽  
Geometric Optimization ◽  
And Performance

A Study on Optimization Design and Performance Test of an Aerostatic Bearing

2012 ◽  
Vol 538-541 ◽  
pp. 3182-3186 ◽  
Author(s):  
Jen Sheng Shie ◽  
Ming Chang Shih
Keyword(s):  
Pressure Distribution ◽  
Optimization Design ◽  
Performance Test ◽  
Load Capacity ◽  
Low Flow ◽  
Aerostatic Bearing ◽  
Flow Rates ◽  
And Performance ◽  
High Load Capacity ◽  
Optimal Approach

This paper discusses about how to optimize design of an aerostatic bearing. In order to achieve the objective, there are four necessary qualifications: high load capacity, high stiffness, low flow rate and uniformly pressure distribution, those make an aerostatic bearing optimized. The finite difference method is employed to obtain the numerical solution of the pressure distribution between the surface of aerostatic bearing and worktable. The performance is determined by the pressure distribution of aerostatic bearing. Furthermore, this study proposed an integrated optimal approach that is HTGA/Gray. Comparing with many kinds of optimal theories finds out the most suitable parameters of an aerostatic bearing. Finally, the experimental results for the load capacities and flow rates clearly indicate that the proposed aerostatic bearing can enhance ability effectively.

scholarly journals Structural Optimization Design of Large Wind Turbine Blade considering Aeroelastic Effect

2017 ◽  
Vol 2017 ◽  
pp. 1-7
Author(s):  
Yuqiao Zheng ◽  
Yongyong Cao ◽  
Chengcheng Zhang ◽  
Zhe He
Keyword(s):  
Structural Optimization ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Optimization Design ◽  
Large Scale ◽  
Wind Turbine Blade ◽  
Mathematical Simulations ◽  
Blade Tip ◽  
And Performance ◽  
Large Wind

This paper presents a structural optimization design of the realistic large scale wind turbine blade. The mathematical simulations have been compared with experimental data found in the literature. All complicated loads were applied on the blade when it was working, which impacts directly on mixed vibration of the wind rotor, tower, and other components, and this vibration can dramatically affect the service life and performance of wind turbine. The optimized mathematical model of the blade was established in the interaction between aerodynamic and structural conditions. The modal results show that the first six modes are flapwise dominant. Meanwhile, the mechanism relationship was investigated between the blade tip deformation and the load distribution. Finally, resonance cannot occur in the optimized blade, as compared to the natural frequency of the blade. It verified that the optimized model is more appropriate to describe the structure. Additionally, it provided a reference for the structural design of a large wind turbine blade.

scholarly journals Simulation and Performance Test Giromill Type Wind Turbine; Case Study Muara Enim, South Sumatra, Indonesia

2021 ◽  
Vol 1 (2) ◽  
pp. 11-18
Author(s):  
Ovi Irawan ◽  
Yohandri Bow ◽  
RD Kusumanto
Keyword(s):  
Wind Speed ◽  
Wind Turbine ◽  
Dynamic Load ◽  
Performance Test ◽  
Turbine Blades ◽  
Load Resistance ◽  
Wind Turbine Blades ◽  
Wind Force ◽  
Simulation Results ◽  
And Performance

This research examines the dynamic load resistance of the Giromill type wind turbine to the variable wind speed, which is converted to the value of the force received by the wind turbine blades. The analysis was carried out numerically using Autodesk Inventor Professional 2019 software. The variations in wind speed used were 2.5 m/s with a force value of 0.195 N for the Giromill turbine, at a speed of 3.5 m/s with a force value of 0.274 N, at 4.5 m /s with a Force value of 0.352 N and a wind speed of 5.5 m/s with a force rating of 0.430 N. From the simulation results using the Autodesk Inventor Pro 2019 software, the effect of gravitational force is greater than the wind force in, so stress analysis is mainly caused by gravity while the wind force has no significant impact. The simulation results also have a characteristic that the higher the wind speed, the lower the stress value. In addition to the dynamic load simulation, the author also tries to implement the Giromill wind turbines in Muara Enim district, South Sumatra, Indonesia. The wind turbine blade rotation will be faster, and the Wind Generator will produce a greater voltage if it is supported by sufficient wind speed.

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