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All Journal Rekayasa Mesin International Journal of Application on Economics and Business
Dwilestari, Charisma
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Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Mechanical Engineering Social Sciences

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ANALISIS RELIABILITY DAN UMUR PAKAI BEARING 6207 DENGAN MENGGUNAKAN METODE WEIBULL Dwilestari, Charisma; Feriyanto, Dafit
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1467

Abstract

Bearing is a mechanical component that is used as a place where the shaft rests on its axis and rotates with the holder and the shaft. The use of these bearings is focused on reducing friction; therefore, the friction that occurs is getting bigger along with the load, pedestal, working temperature, and conditions of loading and rotation that occur on the shaft. Estimation of damage and bearing life will be carried out on several bearings from different brands, but with the same type and size. Bearings with type 6207 and bore diameter of 35 mm come from 7 brands, namely SKF-SS (the only type in this study that used stainless steel), SKF, NSK, NACHI, KOYO SEIKO, SKF, and NTN. This analysis is carried out using the Weibull method where bearing specification data is processed by entering data into existing equations and analyzing the results of the calculations performed. The dynamic load value affects the L10 value of 9.3217%, predicted R(t) 13.5349%, ηcat 9.2567%, and Actual Reliability 3.9158%, this is due to the relationship between each of the equations used. Based on the reliability value generated, it can be concluded that the type of bearing recommended is NTN.
ANALYSIS OF VARIABLES INFLUENCING CONSUMER PURCHASE INTENTION ON TOKOPEDIA Dwilestari, Charisma; Erdiansyah, Rezi
International Journal of Application on Economics and Business Vol. 1 No. 3 (2023): Agustus 2023
Publisher : Graduate Program of Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/ijaeb.v1i3.934-945

Abstract

With the progression of time and technology, society is increasingly abandoning traditional methods and shifting towards online transactions. This change brings consequences in how products are promoted and how consumers are convinced to make purchases. Therefore, this research aims to identify potential variables that may influence consumer purchase intention on the Tokopedia e-commerce platform. The variables under investigation include e-WOM (electronic Word-of-Mouth), online reviews, brand familiarity, and trustworthiness. The analysis method employed is Partial Least Squares (PLS). Research data was obtained through a survey involving over 300 active Tokopedia users. The analysis results demonstrate that brand familiarity, e-WOM, and online reviews have a positive and significant impact on consumer purchase intention. Additionally, it was found that trustworthiness acts as a mediator between brand familiarity, e-WOM, online reviews, and consumer purchase intention. This study provides a significant contribution to the understanding of factors influencing consumer purchase intention on the e-commerce platform, specifically Tokopedia. These findings can serve as a basis for developing more effective marketing strategies to enhance consumer purchase intention and trust in Tokopedia as an e-commerce platform. The practical implications of this research emphasize the importance of considering brand familiarity, e-WOM, online reviews, and trustworthiness in efforts to increase consumer purchase intention on Tokopedia.
Co-Authors Dafit Feriyanto Erdiansyah, Rezi