{"title":"平板压实机频率对压实效率影响的离散元法数值研究","authors":"Karol Brzeziński","doi":"10.1007/s10035-025-01515-w","DOIUrl":null,"url":null,"abstract":"<div><p>The operating frequency of the compaction equipment plays a pivotal role in the efficiency of the compaction process. However, it is not clear whether it is only the result of the frequency-dependent load amplitude or the frequency itself (affecting the dynamics of soil structure). This problem is difficult to solve experimentally since the operating frequency is strictly related to the load amplitude for specific equipment. In this paper, a numerical DEM simulation is conducted that allows compaction to be simulated with a centrifugal force independent of the compaction frequency. First, the material model is calibrated by taking into account particle size distribution, shapes, and mechanical behaviour. Next, the model is utilised in the simulation of compaction with a plate compactor at the operating frequency range of 50–90 Hz. The results obtained correspond well to the physical experiment and allow for additional conclusions to be drawn. The only advantage of compaction with higher frequency is the increased force amplitude. If the force amplitude is maintained, the same void ratio can be obtained for lower frequencies.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":49323,"journal":{"name":"Granular Matter","volume":"27 2","pages":""},"PeriodicalIF":2.9000,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evaluating the plate compactor frequency effect on compaction efficiency: numerical study with discrete element method\",\"authors\":\"Karol Brzeziński\",\"doi\":\"10.1007/s10035-025-01515-w\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The operating frequency of the compaction equipment plays a pivotal role in the efficiency of the compaction process. However, it is not clear whether it is only the result of the frequency-dependent load amplitude or the frequency itself (affecting the dynamics of soil structure). This problem is difficult to solve experimentally since the operating frequency is strictly related to the load amplitude for specific equipment. In this paper, a numerical DEM simulation is conducted that allows compaction to be simulated with a centrifugal force independent of the compaction frequency. First, the material model is calibrated by taking into account particle size distribution, shapes, and mechanical behaviour. Next, the model is utilised in the simulation of compaction with a plate compactor at the operating frequency range of 50–90 Hz. The results obtained correspond well to the physical experiment and allow for additional conclusions to be drawn. The only advantage of compaction with higher frequency is the increased force amplitude. If the force amplitude is maintained, the same void ratio can be obtained for lower frequencies.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":49323,\"journal\":{\"name\":\"Granular Matter\",\"volume\":\"27 2\",\"pages\":\"\"},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2025-02-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Granular Matter\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10035-025-01515-w\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Granular Matter","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10035-025-01515-w","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Evaluating the plate compactor frequency effect on compaction efficiency: numerical study with discrete element method
The operating frequency of the compaction equipment plays a pivotal role in the efficiency of the compaction process. However, it is not clear whether it is only the result of the frequency-dependent load amplitude or the frequency itself (affecting the dynamics of soil structure). This problem is difficult to solve experimentally since the operating frequency is strictly related to the load amplitude for specific equipment. In this paper, a numerical DEM simulation is conducted that allows compaction to be simulated with a centrifugal force independent of the compaction frequency. First, the material model is calibrated by taking into account particle size distribution, shapes, and mechanical behaviour. Next, the model is utilised in the simulation of compaction with a plate compactor at the operating frequency range of 50–90 Hz. The results obtained correspond well to the physical experiment and allow for additional conclusions to be drawn. The only advantage of compaction with higher frequency is the increased force amplitude. If the force amplitude is maintained, the same void ratio can be obtained for lower frequencies.
期刊介绍：
Although many phenomena observed in granular materials are still not yet fully understood, important contributions have been made to further our understanding using modern tools from statistical mechanics, micro-mechanics, and computational science.
These modern tools apply to disordered systems, phase transitions, instabilities or intermittent behavior and the performance of discrete particle simulations.
>> Until now, however, many of these results were only to be found scattered throughout the literature. Physicists are often unaware of the theories and results published by engineers or other fields - and vice versa.
The journal Granular Matter thus serves as an interdisciplinary platform of communication among researchers of various disciplines who are involved in the basic research on granular media. It helps to establish a common language and gather articles under one single roof that up to now have been spread over many journals in a variety of fields. Notwithstanding, highly applied or technical work is beyond the scope of this journal.
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