Year 2021, Volume 24 , Issue 2, Pages 575 - 583 2021-06-01

Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers
Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers

Mine SEÇKİN [1] , Ahmet Çağdaş SEÇKİN [2] , Necla YAMAN TURAN [3]


Flexible hinges are joint mechanisms made of soft or flexible materials. The aim of this study is to determine the discharge characteristics of the flexible hinges used in prosthetic hands and fingers according to the production techniques and to determine the most appropriate hinge production parameters. The speed of the opening process and the energy consumption during the closing process directly depend on the structure of the flexible hinge. For this reason, it is important to examine the relationship between the change of the flexible hinge structure and its discharge in terms of oscillation and energy requirement. In the method of the study, primarily flexible hinge samples are produced using different printing parameters. In the next step, a finger-like test system is designed that uses accelerometers to measure discharge oscillations on the fingers. The test mechanism has a body and a free accelerometer. The body sensor is used to distinguish body vibrations transmitted to the free accelerometer. As a result of the measurements made with the test system, it is observed that the honeycomb shape produced higher frequency vibrations than the linear shape in terms of filling the shape. This indicates that the honeycomb filler can store a higher amount of energy as a result of stretching. As the percentage of inner fill or the number of outer shells increased, the frequency of vibration of the flexible hinge when released is found to be higher. It has been concluded that the hinge, which has the highest energy storage capacity at the lowest cost, will have a honeycomb filling shape, 30% filler, and four shells. Finally, a system that measures the power consumed for finger closing operations is presented. As a result of energy consumption levels with hinges, it has been observed that energy consumption increases as infill density and number of shell values increase. It is seen that these values are compatible with oscillation values. With this system, it is aimed to be used for parameter selection in robotic prosthetic finger application which is planned to be produced by 3D printing in the future.
Flexible hinges are joint mechanisms made of soft or flexible materials. The aim of this study is to determine the discharge characteristics of the flexible hinges used in prosthetic hands and fingers according to the production techniques and to determine the most appropriate hinge production parameters. The speed of the opening process and the energy consumption during the closing process directly depend on the structure of the flexible hinge. For this reason, it is important to examine the relationship between the change of the flexible hinge structure and its discharge in terms of oscillation and energy requirement. In the method of the study, primarily flexible hinge samples are produced using different printing parameters. In the next step, a finger-like test system is designed that uses accelerometers to measure discharge oscillations on the fingers. The test mechanism has a body and a free accelerometer. The body sensor is used to distinguish body vibrations transmitted to the free accelerometer. As a result of the measurements made with the test system, it is observed that the honeycomb shape produced higher frequency vibrations than the linear shape in terms of filling the shape. This indicates that the honeycomb filler can store a higher amount of energy as a result of stretching. As the percentage of inner fill or the number of outer shells increased, the frequency of vibration of the flexible hinge when released is found to be higher. It has been concluded that the hinge, which has the highest energy storage capacity at the lowest cost, will have a honeycomb filling shape, 30% filler, and four shells. Finally, a system that measures the power consumed for finger closing operations is presented. As a result of energy consumption levels with hinges, it has been observed that energy consumption increases as infill density and number of shell values increase. It is seen that these values are compatible with oscillation values. With this system, it is aimed to be used for parameter selection in robotic prosthetic finger application which is planned to be produced by 3D printing in the future.
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Primary Language en
Subjects Engineering
Journal Section Research Article
Authors

Orcid: 0000-0002-9564-1534
Author: Mine SEÇKİN (Primary Author)
Institution: Balta Group
Country: Turkey


Author: Ahmet Çağdaş SEÇKİN
Institution: UŞAK ÜNİVERSİTESİ
Country: Turkey


Author: Necla YAMAN TURAN
Institution: UŞAK ÜNİVERSİTESİ
Country: Turkey


Supporting Institution Uşak Üniversitesi
Project Number UBAP06 2015/TP005
Thanks This study is performed under the project named Limb Design with Wearable Soft Robotic Actuator for Amputees”, UBAP06 2015/TP005 Project in Uşak University. The 3D printer and other measurement instruments are supplied from the Electronics Laboratory of Uşak University Technical Sciences Vocational School.
Dates

Application Date : March 3, 2020
Publication Date : June 1, 2021

Bibtex @research article { politeknik698316, journal = {Politeknik Dergisi}, issn = {}, eissn = {2147-9429}, address = {Gazi Üniversitesi Teknoloji Fakültesi 06500 Teknikokullar - ANKARA}, publisher = {Gazi University}, year = {2021}, volume = {24}, pages = {575 - 583}, doi = {10.2339/politeknik.698316}, title = {Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers}, key = {cite}, author = {Seçkin, Mine and Seçkin, Ahmet Çağdaş and Yaman Turan, Necla} }
APA Seçkin, M , Seçkin, A , Yaman Turan, N . (2021). Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers . Politeknik Dergisi , 24 (2) , 575-583 . DOI: 10.2339/politeknik.698316
MLA Seçkin, M , Seçkin, A , Yaman Turan, N . "Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers" . Politeknik Dergisi 24 (2021 ): 575-583 <https://dergipark.org.tr/en/pub/politeknik/issue/61515/698316>
Chicago Seçkin, M , Seçkin, A , Yaman Turan, N . "Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers". Politeknik Dergisi 24 (2021 ): 575-583
RIS TY - JOUR T1 - Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers AU - Mine Seçkin , Ahmet Çağdaş Seçkin , Necla Yaman Turan Y1 - 2021 PY - 2021 N1 - doi: 10.2339/politeknik.698316 DO - 10.2339/politeknik.698316 T2 - Politeknik Dergisi JF - Journal JO - JOR SP - 575 EP - 583 VL - 24 IS - 2 SN - -2147-9429 M3 - doi: 10.2339/politeknik.698316 UR - https://doi.org/10.2339/politeknik.698316 Y2 - 2020 ER -
EndNote %0 Politeknik Dergisi Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers %A Mine Seçkin , Ahmet Çağdaş Seçkin , Necla Yaman Turan %T Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers %D 2021 %J Politeknik Dergisi %P -2147-9429 %V 24 %N 2 %R doi: 10.2339/politeknik.698316 %U 10.2339/politeknik.698316
ISNAD Seçkin, Mine , Seçkin, Ahmet Çağdaş , Yaman Turan, Necla . "Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers". Politeknik Dergisi 24 / 2 (June 2021): 575-583 . https://doi.org/10.2339/politeknik.698316
AMA Seçkin M , Seçkin A , Yaman Turan N . Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers. Politeknik Dergisi. 2021; 24(2): 575-583.
Vancouver Seçkin M , Seçkin A , Yaman Turan N . Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers. Politeknik Dergisi. 2021; 24(2): 575-583.
IEEE M. Seçkin , A. Seçkin and N. Yaman Turan , "Investigation of Discharge Characteristics of Hinges Produced with 3D Printing for Prosthetic Fingers", Politeknik Dergisi, vol. 24, no. 2, pp. 575-583, Jun. 2021, doi:10.2339/politeknik.698316