Tekstil Teknolojileri ve Tasarımı Fakültesi

Bu topluluk için Kalıcı Uri

http://hdl.handle.net/11527/20121

Gözat

Yazar "Çelebi, Mehmet Fatih" ile Tekstil Teknolojileri ve Tasarımı Fakültesi'a göz atma
  • Öge
    Thermally driven 3D seamless textile actuators for soft robotic applications
    (Wiley, 2024) Atalay, Özgür ; Özlem, Kadir ; Gümüş, Çağatay ; Khamis Ahmed, Ibrahim Adel ; Yilmaz, Ayse Feyza ; Çelebi, Mehmet Fatih ; Çetin, Munire Sibel ; Taherkhani, Bahman ; Tuncay Atalay, Aslı ; İnce, Gökhan ; Tekstil Mühendisliği
    Soft wearable robotic devices have emerged as a promising solution for human mobility assistance and rehabilitation, yet current solutions suffer from issues such as bulkiness, high cost, nonscalability, noise, and limited portability. This study introduces a novel approach to soft robotic assistive devices using untethered, soft actuators with seamlessly integrated sensing, heating, and actuation properties through digital machine knitting and low-boiling liquid. The proposed soft actuator operates under a voltage of less than 12.5 V, generating a tip force of up to 50 mN. This actuator achieves a bending motion when filled with 2 mL of low-boiling liquid and supplied with 15 W. The dynamic response of the actuator is examined under consistent parameters, revealing a 60-second inflation time and a subsequent natural cooling period of 30 s at room temperature. Notably, over 12 cycles, the tip force of the actuator exhibits minimal variation, highlighting its durability for prolonged usage. The proposed approach paves the way for overcoming the limitations of existing technologies, particularly in terms of motion assistance and rehabilitation applications, with an emphasis on at-home usage during daily activities.
  • Öge
    Thermally powered soft gripper covered with silver-coated nylon fabric heater reinforced with stainless steel yarn
    (Wiley, 2024) Taherkhani, Bahman ; Çelebi, Mehmet Fatih ; Çetin, Münire Sibel ; Tunçay Atalay, Aslı ; Ince, Gökhan ; Atalay, Özgür ; Tekstil Mühendisliği
    Soft grippers, generating movement immediately, are generally based on flexible materials actuated by air pressure and comprised of bulky parts, including valves, compressors/pumps, motors, and tubes. In this work, a compact soft gripper with the ability to actuate with a low boiling point liquid (acetone) is presented. SolidWorks 2021 software and 3D printing technology are used to design and manufacture the gripper molds, respectively. The constitutive material of the soft gripper body is highly flexible Ecoflex. A silver-coated nylon fabric (SCNF) heater reinforced with stainless steel yarn (SSY) covering the external surface of the gripper is designed and manufactured using Autocad 2021 and a laser cutting machine, respectively. The idea is inspired by floating the gripper in warm water to provide smooth heat over a large surface area. The available commercial software Abaqus2021 is used to simulate the mechanical deformation of the gripper, and its results are verified with experimental results. The parameter's effect including the voltage and low boiling liquid volume on achievable force and actuating time are investigated. The relation between the electrical, thermal, and mechanical properties of the presented gripper is discussed in detail.