This assumption was challenged by the response data of ambient vibration measurement for Hakucho Bridge.
Through careful analysis of monitoring data from Hakucho Bridge, unexpected along-wind vibration of the bridge tower and associated girder lateral vibration were found, (41) and this new vibration was investigated by wind tunnel testing.
The wind-induced responses of Hakucho Bridge during six strong wind events, taken from 2008-2012 monitoring data, were studied with an emphasis on tower single-frequency large vibration.
(2016) Along-wind almost-harmonic vibration observed at Hakucho Bridge pylons and its wind tunnel experiments.
Hakucho Bridge and sensor layout for ambient vibration measurement.
Hakucho Bridge identified change in aerodynamic damping and stiffness with respect to wind velocity.
SHM techniques have been developed extensively and various mature technologies are in use in large-span bridges, including the Hakucho Bridge in Japan [2], Bill Emerson Memorial Bridge in the USA [3], Jindo Bridge in South Korea [4], Tsing Ma Bridge and Ting Kau Bridge in Hong Kong [5], and Sutong Bridge and Jiangyin Changjiang River Bridge in China.
Sato, "Monitoring of Hakucho Suspension Bridge by ambient vibration measurement," in Nondestructive Evaluation of Highways, Utilities, and Pipelines IV, Proceedings of SPIE, pp.
The two new services will be called Tsugaru and
Hakucho, respectively.
Meantime, he contributed, both in hardware developments and scientific observations, to all the 6 Japanese X-ray astronomy satellites,
Hakucho (launched in 1979), Tenma (1983), Ginga (1987), ASCA (1993), Suzaku (2005), and Hitomi (just launched in 2016).
A native of Tokyo, Ayukawa, whose real name was Toru Nakagawa, won the Japan detective writers club award in 1960 for ''Kuroi
Hakucho'' (Black Swan) and ''Zoo no Kaseki'' (Fossil of Hatred).
Takeda is a third-year student at Myoko Junior High School and dances at
Hakucho Ballet School in Nagano Prefecture.