Abstract A mathematical analysis was done to find out the factors that affect the excavating force and power of a chain type trenching machine. The mathematical analysis showed that the excavating force and power of the chain type trenching machine are affected by tool cutting speed, tool-cutting angle, angle between cutting movement and vertical direction, trench depth and width, coefficient of friction between soil and metal, soil cohesion resistance, and soil specific weight. The results of field experiments showed that the theoretical excavating force (Ftt) was lower than the actual excavating force by 4.0 kN and 3.5 kN for the 1.2 m and 1.5 m trench depth, respectively. The theoretical excavating power (Pr) was lower than the actual excavating power by 3.8% and 2.8% at a trench depth of 1.2 m and 1.5 m, respectively.
{"title":"Mathematical Prediction of Excavating Force and Power of Chain Type Trenching Machine","authors":"M. Ghoni̇my, E. A. E. Rahman, A. Alzoheiry","doi":"10.2478/ata-2022-0029","DOIUrl":"https://doi.org/10.2478/ata-2022-0029","url":null,"abstract":"Abstract A mathematical analysis was done to find out the factors that affect the excavating force and power of a chain type trenching machine. The mathematical analysis showed that the excavating force and power of the chain type trenching machine are affected by tool cutting speed, tool-cutting angle, angle between cutting movement and vertical direction, trench depth and width, coefficient of friction between soil and metal, soil cohesion resistance, and soil specific weight. The results of field experiments showed that the theoretical excavating force (Ftt) was lower than the actual excavating force by 4.0 kN and 3.5 kN for the 1.2 m and 1.5 m trench depth, respectively. The theoretical excavating power (Pr) was lower than the actual excavating power by 3.8% and 2.8% at a trench depth of 1.2 m and 1.5 m, respectively.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43792289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The study dealt with the experimental and numerical assessment of the apple cultivar Golden Delicious (Malus domestica L.) at compressive loading in lateral direction. The development of fruit hemisphere behaviour was examined between two parallel plates. Apple samples were subjected to tests at different strain rates. The experiments were conducted at eleven velocities from 10 to 350 mm·min−1 for the purposes of achieving different strain rates. Compression tests of the fruits at different strain rates corresponded to the quasi-state loading. Impacts of loading rate and strain rate on force and stress at compression were studied. The material exhibited nonlinear behaviour of dependency of stresses on strains, but linear viscoelastic behaviour of dependency of stresses on strain rate. The application possibilities of Kelvin-Voight viscoelastic model were evaluated. Forces, strains, stresses and the apparent moduli of elasticity were evaluated for the detection of fruit damage at different strain rates.
{"title":"Compressive Loading of Apple Cultivar Golden Delicious","authors":"Ľ. Kubík, V. Kažimírová, M. Božiková","doi":"10.2478/ata-2022-0022","DOIUrl":"https://doi.org/10.2478/ata-2022-0022","url":null,"abstract":"Abstract The study dealt with the experimental and numerical assessment of the apple cultivar Golden Delicious (Malus domestica L.) at compressive loading in lateral direction. The development of fruit hemisphere behaviour was examined between two parallel plates. Apple samples were subjected to tests at different strain rates. The experiments were conducted at eleven velocities from 10 to 350 mm·min−1 for the purposes of achieving different strain rates. Compression tests of the fruits at different strain rates corresponded to the quasi-state loading. Impacts of loading rate and strain rate on force and stress at compression were studied. The material exhibited nonlinear behaviour of dependency of stresses on strains, but linear viscoelastic behaviour of dependency of stresses on strain rate. The application possibilities of Kelvin-Voight viscoelastic model were evaluated. Forces, strains, stresses and the apparent moduli of elasticity were evaluated for the detection of fruit damage at different strain rates.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47260041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The research presented supported a comprehensive assessment of the condition of real oil samples of the HM quality class and VG 46 viscosity grade as functions of oil usage time in the hydraulic system of two round timber sorting and transport carriages (RSTWI and RSTWII) Baljer & Zembrod intended for handling wood logs by following the degradation and concentration of abrasive metals in the oil. The oil data were collected every Δ = 500 operating hours during one year by off-line monitoring of hydraulic oil. Measured values were compared to the acceptability limits. Multivariate associations were analysed using a principal component analysis (PCA; Statistica 12.0) to describe the patterns of co-variation among the examined traits. Based on the data obtained, it was observed that the oil in RSTWI was more oxidatively stressed in contrast to the oil in RSTWII despite it being subjected to an excessive wear mode.
{"title":"Changes in the Key Physicochemical Parameters and Selected Trace Elements of Oil Due to Its Use in Hydraulic System of Woodworking Equipment","authors":"M. Kučera, M. Hnilicová","doi":"10.2478/ata-2022-0021","DOIUrl":"https://doi.org/10.2478/ata-2022-0021","url":null,"abstract":"Abstract The research presented supported a comprehensive assessment of the condition of real oil samples of the HM quality class and VG 46 viscosity grade as functions of oil usage time in the hydraulic system of two round timber sorting and transport carriages (RSTWI and RSTWII) Baljer & Zembrod intended for handling wood logs by following the degradation and concentration of abrasive metals in the oil. The oil data were collected every Δ = 500 operating hours during one year by off-line monitoring of hydraulic oil. Measured values were compared to the acceptability limits. Multivariate associations were analysed using a principal component analysis (PCA; Statistica 12.0) to describe the patterns of co-variation among the examined traits. Based on the data obtained, it was observed that the oil in RSTWI was more oxidatively stressed in contrast to the oil in RSTWII despite it being subjected to an excessive wear mode.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44578585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Pourdarbani, S. Ardabili, Ebrahim Akbarpouran, J. L. Hernández-Hernández
Abstract Currently, more than half of the road transport fleet uses diesel engines, which are often identified as the primary source of air pollution. This parameter is enough to optimize engine performance and emissions. The engine optimization can be done using several methods, the most notably by modifying the engine structure, changing the type of fuel using additives and biofuels, or achieving the optimal operating range of the engine. Modifying the engine structure and addition of different kinds of materials to optimize fuel is not recommended either due to necessity of vast time input, financial resources, or extensive research. However, the third way to achieve optimal engine performance conditions can be the most accessible option. According to the results, the best operational load for diesel engine is approx. 94–95% of the full load from the multi-objective optimization point of view, indicating that the optimum load can be achieved before the full load condition. At this point, the operator can achieve the brake power of 198.45 kW and brake thermal efficiency of 40.7% in the presence of brake specific fuel consumption of 0.226 kg·kWh−1. At this condition, CO2 emission is 124.85 g·kWh−1, NOx emission 7.34 g·kWh−1, CO emission 0.6 g·kWh−1, unburnt hydrocarbon emission approx. 0.009 g·kWh−1, and soot formation approx. 0.006 g·kWh−1. This point is equal to the exergy efficiency of approx. 35% and the exergy destruction of approx. 45%. In terms of endpoint results, this condition achieved the impact indices of 7.96E-007 in terms of human health, 0.105 PDF·m2·yr. in terms of ecosystem quality, 0.24 kg CO2 eq. in terms of climate change, and 12.96 MJ in terms of resources.
{"title":"Exergo-Environmental Optimization of a Diesel Engine","authors":"R. Pourdarbani, S. Ardabili, Ebrahim Akbarpouran, J. L. Hernández-Hernández","doi":"10.2478/ata-2022-0024","DOIUrl":"https://doi.org/10.2478/ata-2022-0024","url":null,"abstract":"Abstract Currently, more than half of the road transport fleet uses diesel engines, which are often identified as the primary source of air pollution. This parameter is enough to optimize engine performance and emissions. The engine optimization can be done using several methods, the most notably by modifying the engine structure, changing the type of fuel using additives and biofuels, or achieving the optimal operating range of the engine. Modifying the engine structure and addition of different kinds of materials to optimize fuel is not recommended either due to necessity of vast time input, financial resources, or extensive research. However, the third way to achieve optimal engine performance conditions can be the most accessible option. According to the results, the best operational load for diesel engine is approx. 94–95% of the full load from the multi-objective optimization point of view, indicating that the optimum load can be achieved before the full load condition. At this point, the operator can achieve the brake power of 198.45 kW and brake thermal efficiency of 40.7% in the presence of brake specific fuel consumption of 0.226 kg·kWh−1. At this condition, CO2 emission is 124.85 g·kWh−1, NOx emission 7.34 g·kWh−1, CO emission 0.6 g·kWh−1, unburnt hydrocarbon emission approx. 0.009 g·kWh−1, and soot formation approx. 0.006 g·kWh−1. This point is equal to the exergy efficiency of approx. 35% and the exergy destruction of approx. 45%. In terms of endpoint results, this condition achieved the impact indices of 7.96E-007 in terms of human health, 0.105 PDF·m2·yr. in terms of ecosystem quality, 0.24 kg CO2 eq. in terms of climate change, and 12.96 MJ in terms of resources.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44960439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammad Reza Abbaspour Gilandeh, Gholamhossein Shahgholi, Yousef Abbaspour Gilandeh
Abstract The final yield of agricultural products depends on the effective factors during the growing season of plants, especially the size of soil aggregates and proper size distribution of aggregates. Therefore, it is very important to select appropriate tillage implement and to provide a suitable seedbed in terms of aggregate size with the least energy consumption. It is a new idea to use paraplough and winged-paraplough as tools for seedbed preparation. To measure and determine the factors affecting the mean weight diameter (MWD) of aggregates and percentage of crop residues on the soil surface, a series of field trials were performed in a randomized complete block design (RCBD) with five replications. The trials were conducted at three forward speeds of 2, 5 and 7 km·h−1 and three operating depths of 0–10; 0–20; 0–30 cm using the mouldboard plough and the paraplough with different wing configurations (without wings, with forward wings, with backward wings). The main impacts of implemented type, forward speed and operating depth and their mutual binary effects were significant at P <1% for both the MWD of aggregates and percentage of remaining residue. The highest MWD of aggregates was related to mouldboard plough (5.59 mm) and the lowest value was related to paraplough with backward wings (2.9 mm). It was found that the winged paraplough created a good pulverization in the soil and sustained a high percentage of crop residues on the soil surface. This issue can be very useful and important in the conservation tillage and the conservation of soil resources, especially in the water deficient areas where the soil is prone to erosion.
{"title":"Paraplough and Mouldboard Plow Performance Evaluation for Seedbed Preparation and Supporting Conservation Tillage","authors":"Mohammad Reza Abbaspour Gilandeh, Gholamhossein Shahgholi, Yousef Abbaspour Gilandeh","doi":"10.2478/ata-2022-0017","DOIUrl":"https://doi.org/10.2478/ata-2022-0017","url":null,"abstract":"Abstract The final yield of agricultural products depends on the effective factors during the growing season of plants, especially the size of soil aggregates and proper size distribution of aggregates. Therefore, it is very important to select appropriate tillage implement and to provide a suitable seedbed in terms of aggregate size with the least energy consumption. It is a new idea to use paraplough and winged-paraplough as tools for seedbed preparation. To measure and determine the factors affecting the mean weight diameter (MWD) of aggregates and percentage of crop residues on the soil surface, a series of field trials were performed in a randomized complete block design (RCBD) with five replications. The trials were conducted at three forward speeds of 2, 5 and 7 km·h−1 and three operating depths of 0–10; 0–20; 0–30 cm using the mouldboard plough and the paraplough with different wing configurations (without wings, with forward wings, with backward wings). The main impacts of implemented type, forward speed and operating depth and their mutual binary effects were significant at P <1% for both the MWD of aggregates and percentage of remaining residue. The highest MWD of aggregates was related to mouldboard plough (5.59 mm) and the lowest value was related to paraplough with backward wings (2.9 mm). It was found that the winged paraplough created a good pulverization in the soil and sustained a high percentage of crop residues on the soil surface. This issue can be very useful and important in the conservation tillage and the conservation of soil resources, especially in the water deficient areas where the soil is prone to erosion.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47494998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gergana Kuncheva, P. Dimitrov, H. Beloev, P. Kangalov
Abstract The application of technology for water erosion control plays an essential role in development of sustainable agricultural systems. The paper presented observes the study results from a period of six years in terms of losses of mineral nitrogen and available forms of phosphorus and potassium in the cultivation of wheat and maize on sloping terrains (on calcic chernozem soil type) under the influence of water erosion processes. The impacts of four different types of technology (conventional technology performed along the slope; conventional technology applied across the slope; surface mulching; and minimum tillage with vertical mulching) on nutrient losses were tested. On average, the annual losses of mineral nitrogen, available forms of phosphorus and potassium in wheat production along the slope utilizing conventional technology were 6.0 kg·ha−1y−1, 1.6 kg·ha−1y−1, 5.9 kg·ha−1y−1, and 11.3 kg·ha−1y−1, 2.1 kg kg·ha−1y−1, 10.8 kg kg·ha−1y−1 in maize production. The lowest losses in these elements occurred with minimal employment of tillage system, as they reached values of 2.3 kg·ha−1y−1; 0.6 kg·ha−1y−1, 2.0 kg·ha−1y−1, respectively, in wheat production, and 1.7 kg·ha−1y−1, 0.3 kg·ha−1y−1, 1. kg·ha−1y−1, respectively, in maize production.
{"title":"Loss of Nutrients Through Soil Water Erosion in Calcic Chernozem","authors":"Gergana Kuncheva, P. Dimitrov, H. Beloev, P. Kangalov","doi":"10.2478/ata-2022-0018","DOIUrl":"https://doi.org/10.2478/ata-2022-0018","url":null,"abstract":"Abstract The application of technology for water erosion control plays an essential role in development of sustainable agricultural systems. The paper presented observes the study results from a period of six years in terms of losses of mineral nitrogen and available forms of phosphorus and potassium in the cultivation of wheat and maize on sloping terrains (on calcic chernozem soil type) under the influence of water erosion processes. The impacts of four different types of technology (conventional technology performed along the slope; conventional technology applied across the slope; surface mulching; and minimum tillage with vertical mulching) on nutrient losses were tested. On average, the annual losses of mineral nitrogen, available forms of phosphorus and potassium in wheat production along the slope utilizing conventional technology were 6.0 kg·ha−1y−1, 1.6 kg·ha−1y−1, 5.9 kg·ha−1y−1, and 11.3 kg·ha−1y−1, 2.1 kg kg·ha−1y−1, 10.8 kg kg·ha−1y−1 in maize production. The lowest losses in these elements occurred with minimal employment of tillage system, as they reached values of 2.3 kg·ha−1y−1; 0.6 kg·ha−1y−1, 2.0 kg·ha−1y−1, respectively, in wheat production, and 1.7 kg·ha−1y−1, 0.3 kg·ha−1y−1, 1. kg·ha−1y−1, respectively, in maize production.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43258630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sudeep Sangamesh Babu, Jakub Povýšil, Michal Hruska, P. Vaculík, Petr Benda, Anna Maria Zifia, M. Fůs
Abstract The automotive industry is experiencing an era of technological innovations from conventional passenger cars, trucks to agricultural machinery. Digital side mirror technology is one of the latest topics in the field of advanced driver assistance systems which is developing rapidly. This study evaluates the applicability of digital side mirror technology in the car interior, based on drivers’ feedbacks. The research was conducted in the form of a questionnaire to determine the drivers’ reactions and affinity to new technology, based on personal experience gained in simulated traffic and also in real traffic situations. The data obtained from this research were then subjected to Pearson’s Chi-squared test to evaluate the drivers’ dependence and comfort with the digital side mirror technology. Subsequently, mainly statistically significant dependencies in the preferences of individual drivers were sought due to their personal and anthropometric parameters. The results published in this study can be used mainly to understand the process by which drivers form an opinion on new technology which may be key to their further stance on the technology and may also affect the commercial success of digital mirror technology during their involvement in serial production.
{"title":"Assessment of the New Digital Side Mirror Technology from Driver’s Subjective Point of View Considering Traffic Safety","authors":"Sudeep Sangamesh Babu, Jakub Povýšil, Michal Hruska, P. Vaculík, Petr Benda, Anna Maria Zifia, M. Fůs","doi":"10.2478/ata-2022-0019","DOIUrl":"https://doi.org/10.2478/ata-2022-0019","url":null,"abstract":"Abstract The automotive industry is experiencing an era of technological innovations from conventional passenger cars, trucks to agricultural machinery. Digital side mirror technology is one of the latest topics in the field of advanced driver assistance systems which is developing rapidly. This study evaluates the applicability of digital side mirror technology in the car interior, based on drivers’ feedbacks. The research was conducted in the form of a questionnaire to determine the drivers’ reactions and affinity to new technology, based on personal experience gained in simulated traffic and also in real traffic situations. The data obtained from this research were then subjected to Pearson’s Chi-squared test to evaluate the drivers’ dependence and comfort with the digital side mirror technology. Subsequently, mainly statistically significant dependencies in the preferences of individual drivers were sought due to their personal and anthropometric parameters. The results published in this study can be used mainly to understand the process by which drivers form an opinion on new technology which may be key to their further stance on the technology and may also affect the commercial success of digital mirror technology during their involvement in serial production.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41276955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Bulgakov, O. Trokhaniak, V. Adamchuk, M. Chernovol, M. Korenko, Ilmars Dukulis, S. Ivanovs
Abstract When using complex spatial patterns for transportation, the straight screw conveyors have a series of obvious disadvantages. This paper presents a design of a flexible screw sectional working body that allows increasing the functional and operational characteristics of screw conveyors used in the transportation of bulk agricultural materials. A mathematical model of the dynamic system of a flexible screw conveyor has been established, and dynamic starting torques have been calculated at the rated load of loaded screw, and when the system is braking. Analysis of the results obtained shows that, with significant damping coefficients, the start-up transition process occurs smoothly, and the load reaches its rated value without torque and speed fluctuations. It has been established that fast braking significantly increases the dynamic loads that may exceed the maximum critical torque of the electric motor (by 50–70% on average) and the rated load torque (by 2.5–3 times).
{"title":"A Study of Dynamic Loads of a Flexible Sectional Screw Conveyor","authors":"V. Bulgakov, O. Trokhaniak, V. Adamchuk, M. Chernovol, M. Korenko, Ilmars Dukulis, S. Ivanovs","doi":"10.2478/ata-2022-0020","DOIUrl":"https://doi.org/10.2478/ata-2022-0020","url":null,"abstract":"Abstract When using complex spatial patterns for transportation, the straight screw conveyors have a series of obvious disadvantages. This paper presents a design of a flexible screw sectional working body that allows increasing the functional and operational characteristics of screw conveyors used in the transportation of bulk agricultural materials. A mathematical model of the dynamic system of a flexible screw conveyor has been established, and dynamic starting torques have been calculated at the rated load of loaded screw, and when the system is braking. Analysis of the results obtained shows that, with significant damping coefficients, the start-up transition process occurs smoothly, and the load reaches its rated value without torque and speed fluctuations. It has been established that fast braking significantly increases the dynamic loads that may exceed the maximum critical torque of the electric motor (by 50–70% on average) and the rated load torque (by 2.5–3 times).","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42680150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Kuchar, I. Janoško, M. Holubek, J. Čedík, M. Pexa
Abstract The paper presented deals with the accuracy of three selected devices based on acceleration measurement: accelerometer – XL meter, the global position measurement device by VBox and the constructed 5th wheel, which allows a very accurate measurement of distance along with speed and acceleration of the vehicle. The accuracy of recordings was tested during various driving conditions when all the three measuring devices were attached to the vehicle. Measurements showed that GPS-based measuring devices level off and even surpass accelerometers when used in locations with a good view of the sky. The 5th wheel provided the most representative results, as the difference between average and real standard deviations of the measured distance were 0.78%, 1.38%, 3.48% for the 5th wheel, VBox GPS and XL meter, respectively. The accuracy of the 5th wheel and VBox can be considered very high when taking into account the fact that dynamic actions were monitored. The paper purpose is to point out the significance of measuring device selection in assessing the distance travelled by the vehicle.
{"title":"The Accuracy Assessment of Devices Used for Distance Measuring in Dynamic Vehicle Tests","authors":"P. Kuchar, I. Janoško, M. Holubek, J. Čedík, M. Pexa","doi":"10.2478/ata-2022-0023","DOIUrl":"https://doi.org/10.2478/ata-2022-0023","url":null,"abstract":"Abstract The paper presented deals with the accuracy of three selected devices based on acceleration measurement: accelerometer – XL meter, the global position measurement device by VBox and the constructed 5th wheel, which allows a very accurate measurement of distance along with speed and acceleration of the vehicle. The accuracy of recordings was tested during various driving conditions when all the three measuring devices were attached to the vehicle. Measurements showed that GPS-based measuring devices level off and even surpass accelerometers when used in locations with a good view of the sky. The 5th wheel provided the most representative results, as the difference between average and real standard deviations of the measured distance were 0.78%, 1.38%, 3.48% for the 5th wheel, VBox GPS and XL meter, respectively. The accuracy of the 5th wheel and VBox can be considered very high when taking into account the fact that dynamic actions were monitored. The paper purpose is to point out the significance of measuring device selection in assessing the distance travelled by the vehicle.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47729150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-21DOI: 10.55043/technologica.v1i2.42
Fanny Yuliana Batubara, Fahrul Rozi Irianto, Azani Al Sya’ban, Kristoper, Dimas Teguh Haryanto, Ziko Jannatul Azmi, Irwan A, I. Laksmana, Hendra
Sampah organik merupakan sampah yang mudah mengalami pembusukan (dekomposisi). Masalah sampah kerap kali menjadi bahan perbincangan di semua kalangan, namun sampai saat ini belum ada langkah kerja yang bisa diambil. Hal tersebut di butuhkan kerjasama yang nyata antara masyarakat dan pemerintah untuk mewujudkan kebersihan dan keindahan lingkungan yang di inginkan bersama. Tujuan dari penelitian ini adalah melakukan rancang bangun mesin pencacah sampah, melakukan uji kinerja serta menghitung analisa ekonomi. Metode penelitian diawali identifikasi masalah dan penyempurnaan rancangan mesin pencacah sampah. Mesin ini memiliki panjang 110.5 cm, lebar 41 cm, dan tinggi 109.5 cm. Mesin yang dipakai menggunakan engine diesel sebesar 6 HP dengan kecepatan putar 2600 Rpm. Rangka alat ini menggunakan besi siku berukuran 50 x 50 mm. Komponen memiliki 2 pulley yang berada di poros pisau pencacah dan di poros engine diesel dengan perbandingan ukuran pulley 6 : 3 inchi. V-belt yang digunakan yaitu A-48 .Memiliki kapasitas kerja rata-rata 63.61 kg/jam, Analisis ekonomi yang didapat dari mesin Pencacah sampah organik tipe horizontal yaitu biaya pokok pengoperasian Rp.545,62,- /kg dan break event point 1.147,57 kg/th.
{"title":"Rancang Bangun Mesin Pencacah Sampah Organik Tipe Horizontal","authors":"Fanny Yuliana Batubara, Fahrul Rozi Irianto, Azani Al Sya’ban, Kristoper, Dimas Teguh Haryanto, Ziko Jannatul Azmi, Irwan A, I. Laksmana, Hendra","doi":"10.55043/technologica.v1i2.42","DOIUrl":"https://doi.org/10.55043/technologica.v1i2.42","url":null,"abstract":"Sampah organik merupakan sampah yang mudah mengalami pembusukan (dekomposisi). Masalah sampah kerap kali menjadi bahan perbincangan di semua kalangan, namun sampai saat ini belum ada langkah kerja yang bisa diambil. Hal tersebut di butuhkan kerjasama yang nyata antara masyarakat dan pemerintah untuk mewujudkan kebersihan dan keindahan lingkungan yang di inginkan bersama. Tujuan dari penelitian ini adalah melakukan rancang bangun mesin pencacah sampah, melakukan uji kinerja serta menghitung analisa ekonomi. Metode penelitian diawali identifikasi masalah dan penyempurnaan rancangan mesin pencacah sampah. Mesin ini memiliki panjang 110.5 cm, lebar 41 cm, dan tinggi 109.5 cm. Mesin yang dipakai menggunakan engine diesel sebesar 6 HP dengan kecepatan putar 2600 Rpm. Rangka alat ini menggunakan besi siku berukuran 50 x 50 mm. Komponen memiliki 2 pulley yang berada di poros pisau pencacah dan di poros engine diesel dengan perbandingan ukuran pulley 6 : 3 inchi. V-belt yang digunakan yaitu A-48 .Memiliki kapasitas kerja rata-rata 63.61 kg/jam, Analisis ekonomi yang didapat dari mesin Pencacah sampah organik tipe horizontal yaitu biaya pokok pengoperasian Rp.545,62,- /kg dan break event point 1.147,57 kg/th.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74882331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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