Wind-induced vibration experiment on solar wing

¹ School of Civil Engineering, Beijing jiaotong University, 3 Shangyuancun Xizhimenwai, Beijing, China
² Wind Engineering Research Center, Tokyo Polytechnic University, 1583 Iiyama Atsugi, Kanagawa, Japan
³ Photovoltaic Power Section, JFE Technos Co.Ltd, 2-1 Suehiro-cho Tsurumi-ku Yokohama, Kanagawa, Japan

^a Corresponding author: kimyc@arch.t-kougei.ac.jp

Abstract

This paper describes wind tunnel experimental results of wind-induced responses of a solar wing system, and investigates its aeroelastic instability using a scaled model. The model comprised 12 solar wing units, each supported by 2 cables. The gaps between units were set constant. Two sag ratios (i.e. sag/span length) were adopted. The wind speed was varied from 0 to 16m/s, and 18 different wind speeds were used. From the experiment, when the sag was 2%, a sudden increase in fluctuating displacement was found near a mean wind speed of 10m/s at a wind direction of 40° A sudden increase in fluctuating displacements was also found near a mean wind speed of 1m/s when the wind direction was larger than 60° When the sag increased to 5%, some differences among units in mean displacements were found and complicate vibration in fluctuating displacement at low wind speed was observed.