The Effect of the Intermediate Surface in the Territory of the Seed on the Extension of the Spirited Spirits from the Gin Machine
Mamasharipov Abdunabi Abdumajitovich,
Yuldashev Abdusamat Halimovich,
Muminov Ulugbek Muminalevich
Issue:
Volume 8, Issue 1, February 2023
Pages:
1-4
Received:
1 December 2022
Accepted:
25 January 2023
Published:
4 March 2023
Abstract: The article discusses the seeds that move in the area of the gin equipment seed comb and the factors that affect their release into the working chamber. In the zone of the working chamber, the seeds, which are completely separated from the fiber, go out through an intermediate hole along the grate. The amount of seed going out is affected by the coefficient of return to the raw material roller KV, which again returns to the working chamber as a result of compression of the fully separated seeds in the intermediate slit. The seed return coefficient KV, in turn, depends on the surface area formed by the chmgit comb with the chisel. In today's fiber separation machines, the coefficient of return of fully separated seeds to the working chamber is in the range of KV = 3-4, 30-35% of fully separated seeds leave the working chamber, and 65-70% of the seeds return to the working chamber. According to the results of experiments, the effect of the amount of fully separated seeds on the amount of seed leaving the working chamber and the change in the coefficient of return of seeds to the working chamber KV was studied. was able to reduce to.
Abstract: The article discusses the seeds that move in the area of the gin equipment seed comb and the factors that affect their release into the working chamber. In the zone of the working chamber, the seeds, which are completely separated from the fiber, go out through an intermediate hole along the grate. The amount of seed going out is affected by the co...
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Development of Bi-Stable Vibration Energy Harvesting System Using Duffing-Type Motion Model
Xuguang Zhang,
Wei Zhao,
Jingchao Guan,
Apollo B. Fukuchi,
Xilu Zhao
Issue:
Volume 8, Issue 1, February 2023
Pages:
5-15
Received:
21 February 2023
Accepted:
8 March 2023
Published:
21 March 2023
Abstract: Vibration power generation is an important issue in development of renewable energy. If a vibration system with a maximum possible amplitude is designed, it can be advantageous in improving the vibration power generation efficiency. In this study, we propose a Duffing-type bi-stable vibration energy harvesting system that utilizes the stochastic resonance phenomenon, which can significantly expand the vibration amplitude. We designed the motion rail shape of the bistable vibration model using the Duffing function, and created a Duffing-type wave-shaped motion rail using an acrylic plate. An electromagnetic motor was installed in place of the four rotating wheels below the mass block that moves on the wave-shaped motion rail. When the mass block moves on the rail, it can output a voltage directly from the electromagnetic motor. To verify the performance of the proposed bi-stable vibration energy-harvesting system, a vibration experiment was conducted by combining a random excitation signal that simulates an actual natural environment and intentional periodic excitation signal. Using the experimental results, the stochastic resonance phenomenon and vibration power generation performance of the bi-stable vibration energy-harvesting system were investigated. The stochastic resonance phenomenon can be reliably generated using the bi-stable vibration system proposed in this study, and a large amplitude expansion effect can be obtained in the response vibration of the mass block. In addition, using random signals simulating the natural environment and periodic signals as stimulus signals, vibration experiments were conducted separately for two measurement cases: single excitation and joint excitation. The measurement results showed that under the same input excitation energy, the simultaneous excitation of the two signals generated 82.99% more power than that generated by separate excitation of the two signals. The generation of the stochastic resonance phenomenon by exciting two signals simultaneously has a significant effect on the improvement of the power generation efficiency of the bi-stable vibration energy harvesting system.
Abstract: Vibration power generation is an important issue in development of renewable energy. If a vibration system with a maximum possible amplitude is designed, it can be advantageous in improving the vibration power generation efficiency. In this study, we propose a Duffing-type bi-stable vibration energy harvesting system that utilizes the stochastic re...
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