Results 31 to 40 of about 364 (99)

Study on optimal design of mistuned bladed disk

Nihon Kikai Gakkai ronbunshu, 2018
Although, in designing blades, it is assumed that all blades on a disk are identical (tuned system), the vibration characteristics of the blade is slightly different due to the manufacturing tolerance, the deviation of the material property, and so on ...
Yasutomo KANEKO, Seita KISHIMOTO, Kazushi MORI, Hiroharu OOYAMA   +3 more
doaj   +1 more source

Study on vibration response characteristics of turbine blade for turbo-charger

Nihon Kikai Gakkai ronbunshu, 2019
In the mechanical design of a turbine blade for an automotive turbo-charger, it is pointed out that the mistuning effect caused by the difference of the casting condition should be considered.
Yasutomo KANEKO, Kazushi MORI, Motoki EBISU, Shinji OGAWA, Tomoaki TAKESHITA   +4 more
doaj   +1 more source

A High Efficient Fluid-Structure Interaction Method for Flutter Analysis of Mistuned [PDF]

Xibei Gongye Daxue Xuebao, 2018
The time cost is very high by direct fluid-structure interaction method for mistuned bladed disk structures, so aerodynamic loads generally are ignored or treated as small perturbations in traditional flutter analysis.

doaj   +1 more source

Mistuning analysis of bladed disk consisting of directionally solidified blade (Vibration response analysis by use of response surface method and FMM)

Nihon Kikai Gakkai ronbunshu, 2014
Recently, DS (Directionally Solidified) and SC (Single Crystal) alloys have been widely applied for gas turbine blades instead of CC (Conventionally Casting) alloys.
Yasutomo KANEKO, Kazushi MORI, Hiroharu OOYAMA   +2 more
doaj   +1 more source

Probabilistic Bi-Level Assessment and Adaptive Control Mechanism for Two-Tank Interacting System

IEEE Access, 2023
Liquid level control is a fundamental aspect employed across various industries, where the precise regulation of liquid levels and flow rates is of utmost importance. The Proportional-integral-derivative (PID)controller is widely employed but in practice,
Saibal Manna, Deepak Kumar Singh, Yazeed Yasin Ghadi, Amr Yousef, Hossam Kotb, Kareem M. AboRas   +5 more
doaj   +1 more source

Study on vibration characteristics of steam turbine vanes with large capacity (Vibration response characteristics of half ring structure)

Nihon Kikai Gakkai ronbunshu, 2017
A vane used in a low pressure end of steam turbine is usually fixed to an inner shroud and an outer ring by welding both ends. In such a vane structure, the damping in loading operation is comprised of the material damping and the aerodynamic damping ...
Yasutomo KANEKO, Takahiko IMAI, Kazushi MORI, Hiroharu OOYAMA   +3 more
doaj   +1 more source

Vibration Parameters Estimation by Blade Tip-Timing in Mistuned Bladed Disks in Presence of Close Resonances

Applied Sciences, 2020
The present paper is focused on the post processing of the data coming from the Blade Tip-Timing (BTT) sensors in the case where two very close peaks are present in the frequency response of the vibrating system.
Saeed Bornassi, Christian Maria Firrone, Teresa Maria Berruti   +2 more
doaj   +1 more source

Experimental Investigation of Synchronous-Flow-Induced Blade Vibrations on a Radial Turbine

International Journal of Turbomachinery, Propulsion and Power
In this study, a thorough experimental investigation of the synchronous blade vibrations of a radial turbine is performed for different IGV configurations. First, the blade modes are measured experimentally and calculated numerically.
Marios Sasakaros, Markus Schafferus, Manfred Wirsum, Arthur Zobel, Damian Vogt, Alex Nakos, Bernd Beirow   +6 more
doaj   +1 more source

Flutter analysis of mistuned bladed disk

Nihon Kikai Gakkai ronbunshu, 2015
Although, in designing blades, it is assumed that all blades on a disk are identical (tuned system), the vibration characteristics of the blade is slightly different due to the manufacturing tolerance, the deviation of the material property, and so on ...
Yasutomo KANEKO, Makoto TAKEMURA, Kazushi MORI, Hiroharu OOYAMA   +3 more
doaj   +1 more source

Investigation of the Influence of Splitter Blades on the Resonance Conditions of Impellers

Applied Sciences, 2019
The conventional resonance conditions are derived based on the conventionally designed impellers without splitter blades. This paper proposes the resonance conditions for impellers under the excitation from the impeller−diffuser interaction with ...
Kaicheng Liu, Cheng Yan
doaj   +1 more source