A device capable of customizing nonlinear forces for vibration energy harvesting, vibration isolation, and nonlinear energy sink

2021 ◽  
Vol 147 ◽  
pp. 107101
Author(s):  
Donglin Zou ◽  
Gaoyu Liu ◽  
Zhushi Rao ◽  
Ting Tan ◽  
Wenming Zhang ◽  
...  
2019 ◽  
Vol 11 (10) ◽  
pp. 1950100 ◽  
Author(s):  
Shuai Hou ◽  
Ying-Yuan Teng ◽  
Ye-Wei Zhang ◽  
Jian Zang

Given its essential nonlinearity, nonlinear energy sink (NES) has been extensively studied as a promising vibration energy harvesting device. Internal resonance, which is due to strong energy exchange between modes, also provides a valuable idea for vibration energy harvesting. Combining these two advantages, we put forward a 3:1 internal resonance system, which consists of an NES and a coupled linear oscillator, as an enhanced method for vibration energy harvesting. The multiscale method is applied to derive the relationship between amplitude and frequency response. Simulations are carried out to evaluate the performance of the proposed method. Results show that the internal resonance system can remarkably improve the vibration energy harvesting performance. The numerical solutions verify the accuracy of the analytical solutions. The results demonstrate that the internal resonance system with NES for energy harvesting has better output power and bandwidth compared with noninternal resonance system. Overall, the comprehensive design improves the performance of NES for vibration energy harvesting.


2016 ◽  
Vol 10 (3) ◽  
pp. 147 ◽  
Author(s):  
Rodrigo Tumolin Rocha ◽  
Jose Manoel Balthazar ◽  
Angelo Marcelo Tusset ◽  
Vinicius Piccirillo ◽  
Jorge Luis Palacios Felix

2019 ◽  
Vol 62 (9) ◽  
pp. 1483-1491 ◽  
Author(s):  
YeWei Zhang ◽  
YanNan Lu ◽  
LiQun Chen

Author(s):  
Omid Mohareri ◽  
Siamak Arzanpour

The hydraulic engine mount (HEM) has been designed to provide a vibration isolation characteristic to control road and engine induced vibrations in vehicles by using two fluid passages known as decoupler and inertia track. These types of engine mounts are known for their best noise, vibration, and harshness (NVH) suppression performance among other different types of engine mounts. However, a low cost technique to recycle the dissipated energy of the system in the process of vibration suppression is significantly advantageous. A novel design structure in which the decoupler is replaced with a water turbine to capture and restore the vibration energy of the system is presented in this paper. The turbine design and selection has been done based on the upper and lower chamber pressures and the fluid flow rates in the system’s resonant frequency. The mount vibration isolation and energy generation performance is studied in both frequency and time domains. The simulation results demonstrate that a considerable amount of energy can be harvested from the engine vibration sources. This recent study demonstrates a novel energy harvesting technique in vehicles that require minimum design modifications of conventional hydraulic mounts.


2020 ◽  
Vol 33 ◽  
pp. 5632-5637 ◽  
Author(s):  
Prakash Kumar ◽  
Anil Kumar ◽  
Chandan Pandey ◽  
Shailesh Dewangan ◽  
Sanjay K. Jha

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