For many research institutions, it is sometimes necessary to conduct scientific analysis on research materials. This requires the use of some instruments, such as test sieves.
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·The vibration sieve is mode_led by one desk which could -be move verticaly, horizontaly and· rotate ~round- its m-ass center. So three Lagrangian coordinates could present its motion: x, y, :f).
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The vibration sieve, which is a key part of the combine harvester, was simulated and optimized. The excellent parameters of ... [Show full abstract] the vibration were gained by optimization. The ...
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The vibration motor is placed upright and the vibration sieve is put on the top. DEM simulation data of the s creening efficiency and experimental values are shown in Table 4,
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According to the theory of vibration sieving, there is a close relationship between the sieve surface length and the sieving performance. When other conditions …
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This paper has analyzed the assembly process of vibration sieve, established the virtual prototype and simulated the whole assembly process of vibration sieve in DELMIA’s virtual environment. © 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of [CEIS 2011] Keywords: Virtual assembly and …
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To solve the problems in the DEM simulations of the screening process of a swing-bar sieve, in this paper we propose the real-virtual boundary method to build the geometrical model of the screen ...
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Various vibrating screens are often applied in various industries, e.g., mining, agriculture, and others. The complex shapes of the screen trajectories in the oscillating motion strongly affect the best processing properties of such machines. One of the possible methods for obtaining such complex shapes is the application of double …
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Sieve pores of the sieve plates connect neighboring sieve elements to form the conducting sieve tubes of the phloem. Sieve pores are critical for phloem function. From the 1950s onwards, when electron microscopes became increasingly available, the study of their formation had been a pillar of phloem research. More recent work on …
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The paper studies an original constructive type of conical vibrating sieve. A mathematical model of the motion of the particles on the sieve is presented, which is used to determine the ...
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Dear Colleagues, This Special Issue of Materials entitled "Damage and Vibration Problems in Technology" will be used to collect the latest results and trends in research on damage in engineering materials and structures, as well as problems associated with vibration, from the point of view of analytical, numerical and …
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Various vibrating screens are often applied in various industries, e.g., mining, agriculture, and others. The complex shapes of the screen trajectories in the …
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The main working parts of the cleaning device of a rice combine harvester can be controlled by an established control strategy in real time based on the monitored grain sieve loss.
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A new concept of vibration sieve based on parallel kinematic mechanism (PKM) is proposed in this paper and a novel 2-DOF spatial parallel mechanism is also designed here.
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It does not seem like there is excess vibration or anything like that. I was wondering if anyone knew what might be causing these problems? ... they are much heavier in this area. The 9000's i have seen with shaker/sieve issues are always high hour, run hard machines. ... should have been an update done.. with some reinforcing done, …
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When the sieve is not tightened, it will cause abnormal sound when the sieve is running, and affect the screening effect of the sieve. At this time, the sieve should be tightened in time. 3. The …
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Discrete element method (DEM) was used for simulating the screening process of a threshed rice mixture on a vibration sieve, and a test bed and high-speed camera were used to verify the simulation ...
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The optimal sieving parameters of RAP were 20 Hz, 3 mm, and 10°, respectively, for frequency, amplitude, inclination. The optimum sieve inclination of aggregate was 20° higher than that of RAP. The deviation between the sieving efficiency …
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Vibration energy harvesting is one of the most promising technologies. The majority of current researchers obtain 10 mW to 100 mW power,[2] which has only limited applications in self-powered ...
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Some scholars think that string vibration theory can be applied to sieve panel modeling. Based on the theory of partial differential equations, Bąk et al. [9] …
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Screening of fine wet particles or near-aperture particles by traditional screen devices is often not quite effective for sieve plugging. Different from traditional rigid regular mesh sieves, a cantilevered vibrating sieve …
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The goal of the present study was to analyze the dynamical behavior of the prototype sifter sieve elaborated. The simulation model of such a sifter sieve and the …
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On the condition that the vibration amplitude D = 2 mm and the vibration circular frequency ω = 16 Hz, this investigation also analyzed the screening efficiency when the vibration direction angle ...
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Abstract. Various mechanical devices use vibrations in order to produce useful effects. Such an example can be found in vibrating sieves, used to separate …
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The maximum efficiency could reach over 80% when the following optimal intervals for the studied parameters were reached: size of the opening of the sieve mesh, 0.8-1.1 mm; sieve inclination, 25 ...
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[1] Akhmadiev F G, Gizzyatov R F and Nazipov I T 2017 Hydrogasdynamics and Kinetics of Separation of Disperse Media on Sieve Classifiers Journal of engineering physics and thermophysics 90 1077. Crossref; Google Scholar [2] Akhmadiev F G 2014 Some problems of multicriteria process optimization Theoretical foundations of chemical …
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Currently, there are many studies on the quality of the seed sorting process of different plant crops, such as chickpea [2], rice [3], wheat and barley [4, 5], buckwheat and wild radish [6], and ...
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sieve mesh are driven out of the sieve. Larger particles that cannot pass through the sieve fall off the sieve by rolling down to the other opening end of the sieve by gravity.
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For an elliptical vibration system, the vibration parameters seriously affect conveying speed and sieving efficiency of the materials. In addition, considering the lack of studies about the ...
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When the common cylindrical helical spring is used in high-frequency vibration sieve for slime dewatering, there are many problems such as poor vibration resistance, easy happening fatigue ...
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