Identification of a vibration transmission path in a vehicle by measuring vibrational power flow

2004 ◽  
Vol 218 (2) ◽  
pp. 167-175 ◽  
Author(s):  
S K Lee
Keyword(s):  
Power Flow ◽  
Vibration Transmission ◽  
Transmission Path ◽  
Vibrational Power Flow

Vibrational Power Flow and Its Application to a Passenger Car for Identification of Vibration Transmission Path

2001 ◽  
Author(s):  
Sang-Kwon Lee ◽  
Ki-Sung Park ◽  
Min-Sung Lee ◽  
Kyoun-Rae Rho ◽  
Jang-Sun Sim ◽  
...  
Keyword(s):  
Power Flow ◽  
Passenger Car ◽  
Vibration Transmission ◽  
Transmission Path ◽  
Vibrational Power Flow

Vibration transmission path analysis of underwater vehicle power plant based on TPA power flow

2021 ◽  
pp. 147509022110240
Author(s):  
Yang Yang ◽  
Guang Pan ◽  
Shaoping Yin ◽  
Ying Yuan
Keyword(s):  
Power Plant ◽  
Path Analysis ◽  
Power Flow ◽  
Sea Water ◽  
Low Frequency ◽  
Underwater Vehicle ◽  
Vibration Energy ◽  
Vibration Transmission ◽  
Transmission Path ◽  
Transfer Path

In order to obtain the energy contribution of all paths transmitting vibration from the underwater vehicle power plant to the outer shell, a new method named TPA (Transfer Path Analysis) power flow which combines classical TPA and power flow theory was proposed. Calculation results showed that isolators were the critical paths for transmitting vibration energy to the shell in low frequency band. In addition the main engine and sea water pump were critical vibration sources, which provided directions for reducing the vibration energy transmitted from vibration sources to the target body. To the best of our knowledge, this was the first time to assess the vibration transmission path of the underwater vehicle by TPA power flow method. This method can be employed in other works that need to evaluate the contribution of vibration energy.

Vibrational power flow through adhesively bonded beams

1995 ◽  
Vol 97 (5) ◽  
pp. 3332-3332
Author(s):  
Qunli Wu ◽  
Yiren Hong ◽  
M. K. Lim
Keyword(s):  
Power Flow ◽  
Adhesively Bonded ◽  
Flow Through ◽  
Vibrational Power Flow

Power Flow and Sound Radiation of a Submerged Cylindrical Shell with Internal Structural

2011 ◽  
Vol 105-107 ◽  
pp. 321-325 ◽  
Author(s):  
Jin Yan ◽  
Juan Zhang
Keyword(s):  
Cylindrical Shell ◽  
Power Flow ◽  
Coupled System ◽  
Engineering Practice ◽  
Coupling Condition ◽  
Space Harmonics ◽  
In Series ◽  
Infinite Cylindrical Shell ◽  
Radiated Sound ◽  
Vibrational Power Flow

The vibrational power flow in a submerged infinite cylindrical shell with internal rings and bulkheads are studied analytically. The harmonic motion of the shell and the pressure field in the fluid is described by Flügge shell theory and Helmholtz equation, respectively. The coupling condition on the outer surface of the shell wall is introduced to obtain the vibrational equation of this coupled system. Both four kinds of forces (moments) between rings and shell and between bulkheads and shell are considered. The solution is obtained in series form by expanding the system responses in terms of the space harmonics of the spacing of both ring stiffeners and bulkheads. The vibrational power flow and radiated sound power are obtained and the influences of various complicating effects such as the ring, bulkhead and fluid loading on the results are analyzed. The analytic model is close to engineering practice, which will be valuable to the application on noise and vibration control of submarines and underwater pipes.

Vibrational power flow analysis of cracked functionally graded beams

2020 ◽  
Vol 150 ◽  
pp. 106626
Author(s):  
Lin-Feng Zhu ◽  
Liao-Liang Ke ◽  
Yang Xiang ◽  
Xin-Qun Zhu ◽  
Yue-Sheng Wang
Keyword(s):  
Power Flow ◽  
Flow Analysis ◽  
Functionally Graded ◽  
Power Flow Analysis ◽  
Vibrational Power Flow
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