Modeling and optimization of processes of a woodworking

Pizhurin, Andrey

doi:10.12737/17437

Cited by 3 publications

(5 citation statements)

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“…During the study, to optimise the refining process, it is necessary to identify missing data for building and analysing the optimisation data model; this makes it possible to quickly control the technological process to obtain its highest efficiency (Matygulina et al 2011). The optimisation model of the refining process must represent a set of specific variables characterising the quantity and quality of input factors of the wood raw material preparation process, as well as influencing factors that help to purposefully control an object by changing the position of regulatory bodies, the refiner design, and process parameters (Pizhurin 2004;Chistova 2010).…”

Section: Methods For Solving the Optimisation Problemmentioning

confidence: 99%

“…Wood-fibre semi-finished products are assessed through several indicators, and according to the methods using the criterion convolution method, a generalised indicator (Qf) was formed as a weighted sum of partial criteria (Pizhurin 2004(Pizhurin , 2005…”

Section: Methods For Solving the Optimisation Problemmentioning

confidence: 99%

“…In this study, the partial criteria of the composite quality indicator Qf have different dimensions, and therefore a transition to dimensionless magnitudes took place according to the method (Pizhurin 2004(Pizhurin , 2005 and based on Eq. 5, = ( )/(…”

Section: Methods For Solving the Optimisation Problemmentioning

confidence: 99%

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Optimization of wood fibre refining process in fibreboard production with new refiner disc working surface geometry

Vititnev

Chistova²,

Alashkevich

et al. 2021

BioRes

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Refining of fibrous semi-finished products is an important stage in fibreboard production because the efficiency of this stage affects the resulting fibres’ dimensional and qualitative characteristics. These, in turn, determine the physical and mechanical properties of the finished products, as well as the energy intensity of the process. The efficiency of this process depends on the raw materials used and the geometry of the refiner disc working surface and its operational modes. This article presents the results of the optimisation of wood fibre refining at a low concentration (2 to 4%), using fundamentally new refiner discs in high-density fibreboard production. Based on numerous theoretical and experimental studies, and on the results of processing, the problem of optimising the refining process was solved, taking into account the use of new refiner disc geometry. As a result, the optimal values of refiner process parameters and operation modes making it possible to prepare wood-fibre semi-finished products efficiently while reducing power consumption in refining were established. After optimising the refining process, the new geometry of refiner disc working surfaces provides optimal dimensional and qualitative characteristics of wood fibres, which results in finished products with high physical and mechanical properties in accordance with GOST 4598 (2018) without using bonding resins.

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Section: Methods For Solving the Optimisation Problemmentioning

confidence: 99%

Section: Methods For Solving the Optimisation Problemmentioning

confidence: 99%

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Optimization of wood fibre refining process in fibreboard production with new refiner disc working surface geometry

Vititnev

Chistova²,

Alashkevich

et al. 2021

BioRes

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“…Середньозважений вихід з певного класу якості обчислюють з урахуванням частки колод певних діаметрів. Для первинної обробки експериментальних даних вибірки визначають статистичні показники згідно з [26][27][28]. Результати дубльованих дослідів в межах одного експерименту перевіряють на наявність грубих промахів.…”

Section: таблиця 1 рекомендована методична сітка дослідних розпилюван...unclassified

On the methodology of researching the consumption of dust raw materials for the production of unedged and edged lumber

Ferents,

Mayevskyy,

Marchenko

et al. 2018

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The peculiarities of determination of volume and quality of dust raw materials are described in accordance with the regulations, which were cancelled from 01.01.2019 and with regulations that will remain in force. Determination of volume and quality of dust raw materials under various current regulations will inevitably create a number of inconveniences and conflicts between sellers and consumers, in particular regarding the cost of timber, setting norms for the consumption of dust raw materials in the production of timber, as well as obtaining a certificate of conformity of wood raw materials for exporters of wood products. The methodology of experimental researches of the consumption of dust raw materials for the production of unedged and edged lumber was developed. The main stages of the developed methodology include measuring the size and setting of the group of quality logs before sawing, measuring the size of dusty lumber with recording in the journal of accounting and statistical processing of experimental data. A methodical set of experimental log sawing and journals of accounting lumber and logs during experimental studies were developed and recommended for using.

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“…The planning of an optimal experiment plan is undertaken by taking into account a number of predetermined factors. Three-factor planning models are the most prevalent models for identifying the optimal values of an output quantity, such as the compressive strength of concrete [15]. The principles of experimental theory are of great significance in the modern world.…”

Section: Introductionmentioning

confidence: 99%

Improving Lightweight Structural Tuff Concrete Composition Using Three-Factor Experimental Planning

Khamza,

Zhuginissov,

Kuldeyev

et al. 2024

Preprint

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Research into lightweight structural concrete using volcanic tuff is of great importance to the construction industry. These materials have excellent thermal insulation properties, which helps improve the energy efficiency of buildings. A three-factor experimental design was used to build the statistical model. The test methods used were methods for determining the crushability of volcanic tuff, determining the average density, compressive strength and thermal conductivity of lightweight structural concrete. The influence of basalt fiber on the properties of lightweight structural concrete has been determined. The optimal compositions of lightweight structural concrete using tuff have been selected. The compressive strength of lightweight structural concrete reached 32.0 MPa. The average density range is 1754.6-2114.0 kg/m3. Good thermal conductivity values were obtained in the range of 0.653-0.818 W/m·K. The article obtained the optimal compositions of lightweight structural concrete using volcanic tuff as a filler.

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Modeling and optimization of processes of a woodworking

Cited by 3 publications

References 0 publications

Optimization of wood fibre refining process in fibreboard production with new refiner disc working surface geometry

Optimization of wood fibre refining process in fibreboard production with new refiner disc working surface geometry

On the methodology of researching the consumption of dust raw materials for the production of unedged and edged lumber

Improving Lightweight Structural Tuff Concrete Composition Using Three-Factor Experimental Planning

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