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Development of integrated in-Situ actuator networks for the realization of flexure hinges for highly deformable fiber-reinforced plastic composites
No full textIn the course of promoting e-mobility, there is currently a high demand for functionalized fiberreinforced
plastics (FRPs). In particular, adaptive FRPs with structurally integrated actuators have a
high innovation potential, since conventional motion mechanisms are usually based on external
kinematics with high energy consumption. Even though actuators based on shape memory alloy (SMA)
can be easily processed by mean of textile techniques, only few studies use the weft-knitting technology
for the realization of adaptive FRPs with integrated actuator networks. This study aims at the
development of functionalized weft-knitted fabrics with integrated in-situ actuator networks for the
realization of adaptive FRPs. Therefore, functionalized reinforcement fabrics with integrated SMA
actuators were developed and produced by weft knitting. The production of the composite infused by
means of a thermosetting resin system. Afterward, the functional properties of adaptive FRPs were
characterized and evaluated. In summary, this study highlights the suitability of the weft-knitting
technology for the integral manufacturing of functionalized reinforcement fabrics with integrated in-situ
actuator networks for the realization of adaptive FRP composites
Dla dobra konsumentów
No full textArtykuł zamieszczony jest w : Życie Uczelni : biuletyn informacyjny Politechniki Łódzkiej, nr 159, Luty 2022Wydział Biotechnologii i Nauk o Żywności rozwija współpracę z przedsiębiorcami,
która przyczynia się do transferu i komercjalizacji technologii z uczelni
do biznesu
Feasibility of smart-textiles for vehicle-exterior: impact of disturbances
No full textThere are many challenges when using Smart-Textile controls with conductive yarn in daily activities
involving vehicle exteriors. To test its general feasibility, disruptive factors like keys, rings, or skin care
products as well as sensor knitting densities and -sizes need to be accounted for, in its day-to-day use.
To investigate the influences of those disruptive factors and variables, multiple test series are concluded
within a constructed test environment. The tests provide pre-defined distances between a finger and a
Smart-Textile button, to research differences in the reactivity of the sensor. The results show that the
use of the Smart-Textile with disruptive factors and changing variables can be challenging to implement
due to interferences with the expected signals but can be accounted for when installed properly.
Furthermore, the results provide a more advanced understanding of common influences with regards to
the individual factors intensities and the following actual returned signals. Through those results,
suitable configurations, and limitations for Smart-Textile sensors in vehicle exteriors can be derived
Innowacyjne materiały i technologie w inżynierii materiałowej tekstyliów
No full textProjekt okładki: Martyna Berezowsk
Changes in Shopping Preferences in terms of Sports Goods as a Result of the COVID-19 Pandemic
No full textThe Covid-19 pandemic significantly impacted the private economic sphere
of all. It caused, among other things, the necessity of changing how we meet
different human needs, including shopping. The main aim of the research
presented in this article is to show how shopping preferences have changed
among consumers of sports goods as a result of the COVID-19 pandemic.
The article will present the results of two CAWI surveys conducted in January
2020 and April 2022, each time with a group of more than 100 respondents.
The research focused on issues related to where purchases are made, how
products are promoted and preferred payment methods. The research results
showed a considerable change in shopping preferences in terms of sports
goods, including chosen brands, payment methods and the place of shopping
Comparison of composites containing technical embroidery and woven fabric as reinforcement
No full textThe following research present a comparison of the strength values of composites containing two types of reinforcements: technical embroidery and woven fabric. Both types of reinforcements were made of flax roving with a linear mass of 400 tex. The technical embroidery was made on a computerized embroidery machine ZSK, type JCZA 0109-550. The use of technical embroidery technology is in line with the idea of sustainable development by minimizing waste generated in the production of composite reinforcements. Tensile strength and tensile elongation tests were carried out. As a result of the conducted research, it was proved that the composite containing the technical embroidery as the reinforcement showed higher tensile strength in the longitudinal direction, compared to the composite containing the fabric as the reinforcement. On the other hand, the composite containing fabric as a reinforcement showed a greater elongation
Key word – safety
No full textMore on the website „Życie Uczelni”– p.lodz.pl/enArtykuł zamieszczony jest w : Życie Uczelni : biuletyn informacyjny Politechniki Łódzkiej, nr 159, Luty 2022Politechnika Łódzka i Szkoła Główna Służby Pożarniczej (SGSP) sformalizowały
wieloletnią współpracę. Porozumienie obejmuje działalność naukową, badawczo-
rozwojową, a także dydaktyczną i organizacyjną.Lodz University of Technology
and the Main School of Fire Service
(SGSP) have formalised a long-
-term cooperation. The agreement
covers scientific, research and
development, as well as teaching
and organisational activities. The
aim of joint activities is to train
human resources and develop
technologies related to broadly
defined safety and environmental
protection
Stypendysta programu Bekker NAWA
No full textArtykuł zamieszczony jest w : Życie Uczelni : biuletyn informacyjny Politechniki Łódzkiej, nr 159, Luty 2022Narodowa Agencja Wymiany Akademickiej (NAWA) ogłosiła listę 176 laureatów
IV edycji programu stażowo – badawczego im. Prof. Mieczysława Bekkera.
Wśród stypendystów jest dr inż. Szymon Szufa z Wydziału Inżynierii Procesowej
i Ochrony Środowisk