Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal VANOS Journal of Mechanical Engineering Education
Widodo Widodo
Sarjanawiyata Tamansiswa University
Education

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
The Effect of the Use of Personal Protective Equipment (PPE) and Automotive Workshop Conditions on the Safety of Motorcycle Engine Maintenance Laboratory Practices at AAG Adisutjipto Aviation Vocational School Muchlis Dwi Prayoga; Widodo Widodo; Arif Bintoro Johan
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.35845

Abstract

This study examines the influence of personal protective equipment (PPE) use and workshop conditions on the safety of motorcycle engine maintenance practicums at SMK Penerbangan AAG Adisutjipto. A quantitative approach with a correlational design was employed involving 41 grade X and XI Motorcycle Engineering students selected through total sampling. Data were collected using a validated questionnaire and analyzed using multiple linear regression to determine both partial and simultaneous effects of the independent variables. The findings indicate that PPE use and workshop conditions have a positive and significant contribution to practicum safety. Proper workshop facilities create a safe learning environment, while consistent PPE usage reduces accident risks during practical activities. These results highlight the importance of implementing occupational health and safety standards and strengthening students’ safety awareness in vocational education. The study provides practical recommendations for improving safety implementation and enhancing the quality of vocational learning practices.
Development of Wire Cable Drive for Kioriz SP850A 4WD Engine to Improve Agricultural Productivity Muhammad Ilham Abdillah; Setuju Setuju; Widodo Widodo; Alfat Khaharsyah; Heri Kurnianta
VANOS Journal of Mechanical Engineering Education Vol 11, No 1 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v11i1.35972

Abstract

This study aims to develop an alternative Bowden cable for the Kioritz SP850A 4WD agricultural machine to address issues of high cost, long delivery times, and limited availability of original equipment manufacturer (OEM) cables. The research adopted a Research and Development (R&D) design, which emphasizes systematic product development through stages of needs identification, design, prototype fabrication, testing, and evaluation. Within the testing and evaluation stages, experimental research methods were applied to assess the mechanical and economic performance of the developed cable. The alternative cable was manufactured using SAE 1065 steel subjected to tempering heat treatments at 300°C, 400°C, and 500°C. Mechanical testing included tensile strength, hardness, elongation, and fatigue life, supported by statistical analysis using ANOVA and regression, as well as economic analysis. The results indicate that tempering temperature significantly influences mechanical properties, with the 300°C condition producing the highest tensile strength (1848.7 MPa) but increased brittleness, while the 400°C condition achieved the most balanced performance, including tensile strength of 1651.5 MPa, hardness of 50.2 HRC, and fatigue life comparable to OEM cables. Economic evaluation demonstrated cost savings of ¥295,850 per case, an ROI of 639.6%, and a payback period of 1.7 months. These findings confirm that the developed alternative Bowden cable is both technically and economically feasible, offering a practical solution to reduce machine downtime and enhance agricultural productivity.
Co-Authors Alfat Khaharsyah Arif Bintoro Johan Heri Kurnianta Muchlis Dwi Prayoga Muhammad Ilham Abdillah Setuju Setuju