Optimization of Pultrusion Processes for an Industrial Application

Barkanov, E.; Akishin, Pavel; Namsone, Endija; Auziņš, Jānis; Morozovs, Andrejs

doi:10.1007/s11029-021-09916-7

Cited by 13 publications

(7 citation statements)

References 14 publications

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“…The objective function in the present optimization problems describes the effectiveness of pultrusion processes and minimizes the electrical energy (

) necessary for the production of a pultruded profile with the length of 1 m:

where

is the number of heaters,

is the number of simultaneously produced profiles,

is the power of the electrical heater,

is the process pull speed, and

is the relative time of the heaters’ work during the manufacturing process [ 30 ], determined as the ratio between the time

, when the electrical heaters are switched on, and the full process time or simulation time,

. In general, the following variables are taken as the design parameters: pull speed

, location of heaters

, control temperature on heaters

, and ambient room temperature

.…”

Section: Optimization Of Conventional Pultrusion Processesmentioning

confidence: 99%

“…where n heater is the number of heaters, m pro f ile is the number of simultaneously produced profiles, W heater is the power of the electrical heater, V pull is the process pull speed, and k rt = t work /t process is the relative time of the heaters' work during the manufacturing process [30], determined as the ratio between the time t work , when the electrical heaters are switched on, and the full process time or simulation time, t process . In general, the following variables are taken as the design parameters: pull speed V pull , location of heaters X heater , control temperature on heaters T cont , and ambient room temperature T room .…”

mentioning

confidence: 99%

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Effectiveness and Productivity Improvement of Conventional Pultrusion Processes

2022

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Pultrusion is a technological process in which fibers impregnated with resin move through the heated die and solidify into a composite profile with a constant cross section, as in the metallic die. The effectiveness and productivity of conventional pultrusion processes, preserving the quality of pultruded profiles, could be improved by process optimization or by the application of new, effective heating sources instead of electrical resistances with high heat losses. Due to the large dimension of the numerical problem and multiple iterations applied for the solution of government equations, an optimization methodology was developed, using the method of experimental design and the response surface technique. To develop microwave-assisted pultrusion processes, as well as pultrusion tooling design and process control, new effective electromagnetic-thermo-chemical finite element models and algorithms were developed by using general-purpose finite element software that results in considerable savings in development time and costs and makes available various modeling features of the finite element packages. The effectiveness and productivity of the optimized conventional pultrusion processes and the developed microwave-assisted pultrusion processes are estimated in comparison with the real pultrusion processes used in laboratory and industrial shops.

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“…The objective function in the present optimization problems describes the effectiveness of pultrusion processes and minimizes the electrical energy (

) necessary for the production of a pultruded profile with the length of 1 m:

where

is the number of heaters,

is the number of simultaneously produced profiles,

is the power of the electrical heater,

is the process pull speed, and

is the relative time of the heaters’ work during the manufacturing process [ 30 ], determined as the ratio between the time

, when the electrical heaters are switched on, and the full process time or simulation time,

. In general, the following variables are taken as the design parameters: pull speed

, location of heaters

, control temperature on heaters

, and ambient room temperature

.…”

Section: Optimization Of Conventional Pultrusion Processesmentioning

confidence: 99%

mentioning

confidence: 99%

Effectiveness and Productivity Improvement of Conventional Pultrusion Processes

2022

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“…The process can be made completely automatic, thus decreasing the cost labor and production. This process have a short cycle and therefore is used in various industries [146].…”

Section: Resin Infusion Molding (Rim) and Vacuum-assisted Resin Infus...mentioning

confidence: 99%

Advances in Natural-Fiber-Reinforced Composites: A Topical Review

Prajapati

Tevatia

Dixit³

2022

Mech Compos Mater

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A rapid growth in the research and employment of natural-fiber composites (NFCs) has been observed in the last years. This is explained by their many advantages, such as the biodegradability, eco-friendliness, a relatively low cost, and good mechanical properties. Despite these advantages, they also possess some undesirable features, such as difficulties in processing, high fiber moisture absorption, low impact strength, low durability, poor fire resistance, and poor compatibility between fibers and matrix. Much effort has been applied to minimizing these issues in order to extend the capabilities and applications of this group of materials. In an attempt to provide a better insight into NFCs, an up-to-date review of their manufacturing routes, different applications, and mechanical performance is very required. This review aims to address the above-mentioned issues challenges encountered when dealing with such materials.

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“…Процесс можно сделать полностью автоматизированным, что снизит затраты на рабочую силу и производство. Этот процесс, имеющий короткий производственный цикл, используют в разных отраслях промышленности [146].…”

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2022

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что приводит к меньшему снижению предела текучести образца СВМПЭ+ +20% по массе ПП в зоне контакта и соответственно к меньшему износу.Показано, что введение частиц и/или волокон для повышения теплопроводности играет двоякую роль. С одной стороны, отвод тепла снижает температуру непосредственно в зоне контакта, в результате предел текучести снижается в меньшей степени и износ уменьшается. С другой стороны, наличие включений приводит к появлению зон концентрации напряжений в их окрестности и локализации деформаций в относительно податливой матрице. Поскольку включения меньших размеров вызывают меньшие концентрации напряжений, использование углеродных нанотрубок более эффективно, чем углеродных волокон.Благодарность. Работа выполнена по государственному заданию ИФПМ СО РАН (FWRW-2021-0010). Авторы выражают благодарность РФФИ и БРФФИ за финансирование исследования в рамках проекта № 20-58-00032_Бел_а (T20Р-223).

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Optimization of Pultrusion Processes for an Industrial Application

Cited by 13 publications

References 14 publications

Effectiveness and Productivity Improvement of Conventional Pultrusion Processes

Effectiveness and Productivity Improvement of Conventional Pultrusion Processes

Advances in Natural-Fiber-Reinforced Composites: A Topical Review

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