Wyniki wyszukiwania - BazTech

1

Influence of the Structure of Seersucker Woven Fabrics on their Friction Properties

Frącczak Łukasz, Matusiak Małgorzata

Autex Research Journal

|

2021

|

Vol. 21, no. 1

85--91

EN

Friction is defined as a force resisting a relative motion between two bodies in contact. The friction of a fabric on itself or on another fabric influences significantly a fabric’s performance and user’s utility comfort, especially the so-called sensorial comfort. Generally, the coefficient of friction is determined for a given pair of materials. The aim of the present work was to investigate the influence of the structure of the seersucker woven fabrics on their frictional properties. Three variants of the seersucker woven fabrics of different repeat of the seersucker effect were the objects of the investigations. Three measuring elements were applied: made of aluminum and steel and covered with silicone. The obtained results confirmed the influence of the pattern of the seersucker effect on the values of friction coefficient. It was also stated that there are differences between the friction coefficients measured in the warp and weft directions of the seersucker woven fabrics. Values of friction coefficient between the seersucker woven fabrics and measuring elements were the highest for the measuring element covered by silicone. These values were several times higher than the values of friction coefficient measured using the measuring elements made of aluminum and steel.

2

Investigation of the Friction Coefficient of Seersucker Woven Fabrics

Frącczak Łukasz, Matusiak Małgorzata, Zgórniak Piotr

Fibres & Textiles in Eastern Europe

|

2019

|

Vol. 27, no. 3 (135)

36--42

EN

At present, seersucker woven fabrics are increasingly used for the manufacturing of clothing. These fabrics are created in the weaving process as a result of the different tension of two sets of warp threads: basic and puckering. Seersucker woven fabrics applied in properly designed clothing have an ability to massage the body while wearing such clothing. In order to conduct a detailed analysis of the massaging process during the clothing usage, it is necessary to examine the phenomena occurring during the massaging. Friction is one of the most important phenomena influencing the massaging process. Due to the nature of seersucker woven fabrics, measurement of the friction coefficient is difficult. This paper presents the problems related to measurement of the coefficient of friction for an exemplary seersucker fabric. The work contains a description of the measurement method proposed and the consequences resulting from its application.

PL

Obecnie coraz więcej tkanin gofrowanych jest wykorzystywanych do produkcji odzieży. Tkaniny te powstają w procesie tkania w wyniku różnego napięcia dwóch zestawów nitek osnowowych. Tkaniny gofrowane, stosowane w odpowiednio zaprojektowanej odzieży, mają zdolność masażu ciała podczas użytkowania odzieży. Tarcie jest jednym z najważniejszych zjawisk wpływających na proces masażu. Ze względu na charakter tkanin gofrowanych, pomiar współczynnika tarcia jest trudny. W artykule przedstawiono problemy związane z pomiarem współczynnika tarcia dla przykładowej tkaniny gofrowanej. Praca zawiera opis proponowanej metody pomiaru oraz konsekwencje wynikające z jej zastosowania.

3

Parameterization of Seersucker Woven Fabrics Using Laser Techniques

Frącczak Łukasz, Domagała Rafał, Zgórniak Piotr, Matusiak Małgorzata

Autex Research Journal

|

2019

|

Vol. 19, no. 3

243--249

EN

Seersucker woven fabrics are increasingly used in the textile industry. Unfortunately, their popularity is limited due to the lack of standards and parameterization of their structure. Thus, the designer of the finished product (clothing, bedding, or decorative items) has problems with ordering a fabric with a specific structure and properties. In this context, it is necessary to parameterize them. This paper presents a method for measuring the surface geometry of seersucker woven fabrics using laser techniques. The surface geometry of the seersucker woven fabric was determined using adapted roughness parameters, such as Wz, Ra, and Rz, as well as by using a hypsometric map.

4

Long-range snake-like robot powered by pneumatic McKibben muscles

Frącczak Łukasz, Olejniczak Michał, Podsędkowski Leszek

Archive of Mechanical Engineering

|

2019

|

Vol. LXVI, nr 2

257--267

EN

Contemporary research on mobile robotics aims at designing robots that will be able to traverse an extremely varied environment. One of the most universal modes of locomotion is the serpentine movement. A majority of modern snake-like robots use electric drives. This study presents a snake-like robot made out of McKibben muscles. Using a pneumatic cable with muscles arranged in series, it is possible to create a robot of any length, limited only by the length of the muscle cables. Because the control system and the body of the robot are separate, the robot can be used for rescue missions involving high risk of explosion of flammable substances and for missions taking place on extremely difficult terrain.