Articles
<![CDATA[Unjuk Kerja Kondisi Akustik Ruang Kelas Pembelajaran: Desain Faktorial Umum ]]>
<![CDATA[B. Handoko Purwojatmiko]]>;
<![CDATA[Dianasanti Salati]]>
<![CDATA[ Jurnal Teknologi dan Manajemen Vol. 20 No. 2 (2022): JURNAL TEKNOLOGI DAN MANAJEMEN ]]>
Publisher : <![CDATA[Politeknik STMI Jakarta ]]>
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DOI: 10.52330/jtm.v20i2.70
<![CDATA[Kinerja akustik di ruang kelas memiliki peranan penting dalam berinteraksi saat kegiatan belajar mengajar. Untuk mendapatkan kondisi kelas yang efektif diperlukan sebuah ruang kelas yang dapat memenuhi kriteria ruangan yang baik. Adapun salah satu faktor yang mempengaruhi kegiatan pembelajaran yaitu faktor lingkungan. Faktor lingkungan digambarkan sebagai keadaan dan suasana ruang kelas yang dipengaruhi oleh faktor kebisingan, pencahayaan, suhu dan lainnya yang dapat menganggu. Penelitian ini memiliki tujuan untuk mengidentifikasi faktor apa yang memiliki pengaruh signifikan terhadap intensitas suara di ruang kelas dengan menggunakan desain faktorial umum. Desain faktorial umum digunakan untuk menentukan semua kemungkinan efek kombinasi dari masing-masing faktor. ANOVA selanjutnya digunakan untuk menganalisis faktor yang signifikan dan interaksi antar faktor tersebut. Faktor yang menjadi pertimbangan dalam penelitian ini adalah faktor frekuensi dan kondisi pendingin ruangan. Berdasarkan penelitian ini, faktor frekuensi menjadi faktor yang paling signifikan mempengaruhi tingkat intensitas suara dengan menggunakan taraf signifikansi 5%. Pendingin ruangan juga memiliki pengaruh terhadap tingkat intensitas suara ketika suhu diatur menjadi sangat rendah yang mengakibatkan kompresor pendingin ruangan akan bekerja lebih keras dan menghasilkan tingkat kebisingan tertentu. Terkait dengan kondisi tersebut maka diperlukan pengeras suara tambahan yang didesain khusus untuk ruang kelas agar kegiatan belajar mengajar menjadi lebih efektif terutama dalam penyampaian informasi. Selain itu, penelitian lanjutan dapat dilakukan dengan melakukan perancangan ulang ruangan berdasarkan data dari penelitian ini.]]>
<![CDATA[Identification of Critical Factors in Product Change in The Automotive Industry ]]>
<![CDATA[B. Handoko Purwojatmiko]]>;
<![CDATA[Mustofa Mustofa]]>;
<![CDATA[Pasti Immanuel Bangun]]>
<![CDATA[ IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 4, No 1: February 2023 ]]>
Publisher : <![CDATA[Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana ]]>
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DOI: 10.22441/ijiem.v4i1.18669
<![CDATA[Electric vehicles are a future transportation option that has the advantages of reducing air pollution and being environmentally friendly. Battery-based electric vehicles are still relatively new in Indonesia and have not received public attention like conventional oil-fueled vehicles. Electric vehicles such as electric cars have been socialized, but there are still many assumptions that electric cars are still not roadworthy because they are still in the development process. Presidential regulation number 55 of 2019 is expected to be the legal basis for boosting the development of electric vehicles in Indonesia. This study address to explore and identify the main impact factors of product change on the automotive industry in Indonesia. To identify this case, the model was built based on the Theory of Planned Behavior (TPB) which was expanded in the context of the adoption of electric vehicles. This study aims to identify what factors can affect product changes in the automotive industry. This model is formed by main constructs: individual behavior, subjective norms, and perceived behavior control, as well as three other factors identified from the literature review and interviews. Based on this research, it was found that three factors can have an impact on product changes in the automotive industry. These three factors are subjective norms, perceived risk, and logistical incentives. Apart from these three factors, other supporting factors are also expected to be able to develop the electric vehicle ecosystem in Indonesia.]]>
<![CDATA[Implementasi Penjadwalan Preventive Maintenance untuk Meningkatkan Nilai Efektivitas Mesin pada Mesin CNC Milling VL-10i ]]>
<![CDATA[Fredy Sumasto]]>;
<![CDATA[Rafi Ramadhani Jiwanto]]>;
<![CDATA[B. Handoko Purwojatmiko]]>;
<![CDATA[Indra Rizki Pratama]]>
<![CDATA[ Journal of Industrial View Vol. 5 No. 1 (2023) ]]>
Publisher : <![CDATA[Universitas Merdeka Malang ]]>
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DOI: 10.26905/jiv.v5i1.9383
<![CDATA[Tujuan dari penelitian ini adalah untuk meningkatkan efektivitas mesin pada mesin CNC Milling VL-10i melalui implementasi Total Productive Maintenance (TPM). Penerapan pendekatan TPM dilakukan di sebuah perusahaan manufaktur komponen otomotif di Indonesia yang memproduksi injection plastic, mold & dies, dan jig & fixture. Permasalahan yang terjadi pada mesin CNC Milling VL-10i adalah reduced speed losses sebesar 12,93% berdasarkan analisis six big losses dari hasil Overall Equipment Effectiviness (OEE) awal sebesar 74,32%. Berdasarkan data tersebut, faktor-faktor yang menyebabkan reduced speed losses dianalisis menggunakan fishbone diagram dan didapat 4 faktor yang mempengaruhi yaitu method, man, environment, dan machine. Hasil dari fishbone diagram dianalisis lebih lanjut menggunakan 5W+1H untuk menghasilkan usulan perbaikan. Usulan perbaikan yang diimplementasikan pada penelitian ini adalah preventive maintenance dari faktor machine dalam bentuk check sheet preventive maintenance. Hasil dari implementasi menunjukkan peningkatan efektivitas mesin berdasarkan pada OEE sebesar 15,91% dari 74,32% menjadi 90,23%.]]>
<![CDATA[PDCA Method Implementation to Reduce the Potential Product Defects in the Automotive Components Industry ]]>
<![CDATA[Fredy Sumasto]]>;
<![CDATA[Cantika Puspa Maharani]]>;
<![CDATA[B. Handoko Purwojatmiko]]>;
<![CDATA[Febriza Imansuri]]>;
<![CDATA[Siti Aisyah]]>
<![CDATA[ IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 4, No 2: June 2023 ]]>
Publisher : <![CDATA[Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana ]]>
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DOI: 10.22441/ijiem.v4i2.19527
<![CDATA[The research aim to reduce the potential for product defects in the automotive component industry by implementing Plan-Do-Check-Action (PDCA). The application of the PDCA method was carried out in an automotive component manufacturing company in Indonesia which produced SLJ 91 parts as a research object. The causes of the high number of product defects are known at the Plan stage from setting the theme of improvement to the root cause by using a fishbone diagram and 5W+1H analysis. In the Do stage, system improvements are implemented from the solutions generated by the 5W+1H analysis. The repair results are controlled to confirm the results of the repairs made. The corrective actions taken resulted in a reduction in product defects of 2.8% so that they were included in the maximum tolerance for the number of defects in the SLJ 91 part. Based on the results of data processing, analysis, and comparison between before and after implementation, it was found that the defect rate for SLJ 91 products was reduced from 10.8 % to 8%, a reduction in the percentage of 2.8% so that the product reaches the quality target it should be. The results of the repair had a direct impact on the type of dent defects, namely a decrease in the number of defects from 8.6% to 5.3%, so that there was a decrease of 3.3%. The results of the research are implemented and standardized in the action stage so that the improvements made can be maintained in the long term.]]>
<![CDATA[Implementation of Measurement System Analysis to Reduce Measurement Process Failures on Part Reinf BK6 ]]>
<![CDATA[Fredy Sumasto]]>;
<![CDATA[Yesaya Abdi Nugroho]]>;
<![CDATA[B. Handoko Purwojatmiko]]>;
<![CDATA[Mohammad Wirandi]]>;
<![CDATA[Febriza Imansuri]]>;
<![CDATA[Siti Aisyah]]>
<![CDATA[ IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 4, No 2: June 2023 ]]>
Publisher : <![CDATA[Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana ]]>
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DOI: 10.22441/ijiem.v4i2.20212
<![CDATA[This study aims to reduce the failure of the measurement process on Part Reinf BK6 in the automotive industry which prioritizes accuracy and precision in the process to maintain product quality and customer satisfaction. This study used the measurement system analysis (MSA) method to analyze the Gage R&R on a measurement system, with 2 operators and 10 parts measured with 3 repetitions. The MSA results before improvement showed a Total Gage R&R of 67.80% with a repeatability value of 0.98% and a reproducibility value of 66.82%. The result indicated that the measurement system needs to be improved because the Gage R&R is still above 30%. After improving the measurement process by adding the Go No Go pin as an additional tool, the MSA results show the Total Gage R&R value after the improvement is made to 10.11% with repeatability and reproducibility values of 10.11% and 0% respectively. Based on the results of the study, it can be concluded that the improvements made have a significant effect on the measurement system on Part Reinf BK6. This will improve accuracy and precision in the measurement process, maintain product quality, and increase customer satisfaction. Therefore, improving the measurement system is very important in the automotive industry.]]>
<![CDATA[Analisis Kualitas Pelayanan Kantin Berdasarkan Waktu Penyajian Menggunakan Statistik Inferensial ]]>
<![CDATA[B. Handoko Purwojatmiko]]>;
<![CDATA[Dianasanti Salati]]>
<![CDATA[ Jurnal Teknologi dan Manajemen Vol. 21 No. 2 (2023): JURNAL TEKNOLOGI DAN MANAJEMEN ]]>
Publisher : <![CDATA[Politeknik STMI Jakarta ]]>
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DOI: 10.52330/jtm.v21i2.105
<![CDATA[Memberikan sebuah layanan prima kepada pelanggan merupakan tantangan wajib yang dihadapi oleh pemilik kantin. Kualitas layanan yang diberikan kepada pelanggan dianggap sebagai faktor penting keberhasilan penyedia layanan karena berdampak kepada kepuasan pelanggan. Kecepatan penyajian merupakan atribut penting dalam menyajikan makanan atau minuman kepada pelanggan. Keunggulan kompetitif dapat dicapai dengan memberikan pelayanan terbaik yang dilihat dari waktu penyajian makanan sehingga akan memiliki dampak terhadap kepuasan pelanggan dan profitabilitas. Pelayanan kantin disekitar Politeknik dipilih sebagai tempat pengambilan data untuk mendapatkan gambaran mengenai kualitas pelayanan. Tujuan penelitian yaitu untuk mengevaluasi pelayanan saat ini. Penelitian ini akan berfokus pada kecepatan penyajian pada kios makanan dan minuman. Proses pengambilan data dilakukan pada saat jam sibuk atau jam makan siang yang ditentukan mulai pukul 11.00 WIB – 13.00 WIB. Metode analisa statistik digunakan untuk menentukan performa kualitas pelayanan penyajian makanan ataupun minuman. Analisis statistik inferensial yang digunakan yaitu t-test dan analisa regresi. Dalam perhitungan secara statistik didapatkan nilai rata-rata waktu pelayanan penyajian makanan pada hari pertama adalah 54,07 detik sedangkan untuk hari kedua adalah 55,71 detik. Untuk penyajian minuman didapatkan data nilai rata-rata waktu pelayanan pada hari pertama adalah 44,15 detik. Untuk hari kedua nilai rata-rata dari waktu pelayanan 4,44 detik. Dari analisis regresi didapatkan hubungan berbanding lurus antara banyak jumlah makanan dengan waktu pelayanan. Untuk minuman didapatkan waktu pelayanan yang konsisten dari jenis minuman yang dipesan. Sehingga dapat disimpulkan bahwa kualitas pelayanan setiap harinya memiliki perbedaan signifikan secara statistik sehingga diperlukan evaluasi lebih lanjut. Standar baku waktu pelayanan juga perlu ditentukan oleh pemilik kantin.]]>
<![CDATA[Reduksi Waktu Set up Pekerjaan Penggantian Ban Sepeda Motor dengan Metode Single Minute Exchange of Dies ]]>
<![CDATA[Indra Rizki Pratama]]>;
<![CDATA[Fredy Sumasto]]>;
<![CDATA[Febriza Imansuri]]>;
<![CDATA[B. Handoko Purwojatmiko]]>
<![CDATA[ Jurnal Serambi Engineering Vol 8, No 4 (2023): Oktober 2023 ]]>
Publisher : <![CDATA[Fakultas Teknik ]]>
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DOI: 10.32672/jse.v8i4.6854
<![CDATA[Currently, almost every household in Indonesia has a motorbike, this is certainly a business opportunity. One of the most important components of a motorbike is the tire which functions to reduce vibration and protect the wheel from wear and damage. The business environment operating in the automotive sector needs to create high-quality goods or services to increase customer satisfaction. Costs in the company's productive processes must be reduced to achieve effectiveness. The object of this research is the XYZ Tire Workshop located in East Jakarta. In a day, the XYZ Ban workshop can provide up to 25 to 30 motorbike tire changes. Meanwhile, the workforce on duty is only 2 mechanics and the quantity of tools is limited. This causes delays and makes customers have to wait quite a long time before their motorbike can be worked on. The Single Minute Exchange of Dies (SMED) method which is included in lean tools is the key to reducing set-up process time. In general, SMED aims to standardize and simplify operating processes. The SMED technique is used as an element in Total Productivity Maintenance (TPM) in various studies to achieve lean manufacturing. Based on research data, the set-up time before implementing SMED was 177 seconds. After implementing the SMED method, the setup time was 126 seconds. This shows that the SMED method can reduce set-up time by 51 seconds.]]>
<![CDATA[Analisis Pengaruh Kepuasan dan Motivasi Kerja terhadap Kinerja Penjual pada PT Indomobil Trada Nasional ]]>
<![CDATA[Taufan, Sonny]]>;
<![CDATA[Mustofa, Ismail]]>;
<![CDATA[Mustofa, Mustofa]]>;
<![CDATA[Purwojatmiko, B. Handoko]]>
<![CDATA[ Reslaj : Religion Education Social Laa Roiba Journal Vol 6 No 2 (2024): Reslaj: Religion Education Social Laa Roiba Journal ]]>
Publisher : <![CDATA[LPPM Institut Nasional Laa Roiba Bogor ]]>
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DOI: 10.47467/reslaj.v6i2.5506
<![CDATA[Job satisfaction and work motivation are identified as critical factors that can influence an individual's level of performance in a competitive work environment such as the automotive industry. This research aims to analyze the influence of job satisfaction and work motivation on the performance of branded vehicle sellers at PT Indomobil Trada Nasional – KIA Kelapa Gading. This research uses a quantitative approach with survey methods. Data was collected through a questionnaire distributed to KIA vehicle sellers at PT Indomobil Trada Nasional. Respondents in this research were sellers who were actively working. The collected data was then analyzed using regression analysis techniques to measure the relationship between the independent variables (job satisfaction and work motivation) and the dependent variable (seller performance). It is hoped that the results of this research will provide deeper insight into the factors that influence the performance of KIA sellers in these automotive companies. The results of the regression analysis will show the extent to which job satisfaction and work motivation are able to predict sales performance. These findings will provide valuable input for the management of PT Indomobil Trada Nasional in formulating strategies to improve sales performance through increasing job satisfaction and motivation. It is hoped that this research will contribute to the human resource management literature and provide practical guidance for companies in the automotive industry or other similar sectors. In addition, this research can also be a basis for further research on the influence of other factors that can influence individual performance in different work contexts.]]>
<![CDATA[PENINGKATAN EFISIENSI BISNIS: SOSIALISASI TEKNOLOGI CLOUD UNTUK PENGELOLAAN PERSEDIAAN BENGKEL MOTOR ]]>
<![CDATA[Sumasto, Fredy]]>;
<![CDATA[Imansuri, Febriza]]>;
<![CDATA[Purwojatmiko, B. Handoko]]>;
<![CDATA[Aminudin, Muhammad]]>;
<![CDATA[Saputra, Alfiolani]]>
<![CDATA[ Diseminasi: Jurnal Pengabdian kepada Masyarakat Vol. 6 No. 1 (2024) ]]>
Publisher : <![CDATA[Pusat Pengabdian kepada Masyarakat- LPPM Universitas Terbuka ]]>
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DOI: 10.33830/diseminasiabdimas.v6i1.6591
<![CDATA[Program Pengabdian kepada Masyarakat (PKM) yang dilakukan bertujuan meningkatkan keberlangsungan bisnis Bengkel Motor melalui sosialisasi manajemen persediaan berbasis cloud. Melalui desain dan implementasi Mini Sistem Inventory Control (Mini SICo), program ini berfokus pada meningkatkan pemahaman dan keterampilan pengelolaan persediaan pada pemilik dan karyawan bengkel. Kegiatan ini meliputi kunjungan lapangan, sosialisasi konsep manajemen persediaan, dan demonstrasi penggunaan Mini SICo. Hasilnya menunjukkan peningkatan yang signifikan dalam pemahaman mitra tentang manajemen persediaan dan respons positif terhadap sosialisasi serta implementasi alat bantu ini. Evaluasi program menunjukkan bahwa Mini SICo memberikan solusi praktis untuk optimalisasi persediaan dan memberikan kontribusi nyata pada peningkatan daya saing dan keberlangsungan bisnis bengkel motor di masa depan. The Community Service Program (PKM) aims to improve the business sustainability of motorcycle repair shops through the socialization of cloud-based inventory management. Through the design and implementation of the Mini Inventory Control System (Mini SICo), this program focuses on improving the understanding and skills of inventory management in workshop owners and employees. The activities included field visits, socialization of inventory management concepts, and demonstration of the use of Mini SICo. The results showed a significant increase in partners' understanding of inventory management and a positive response to the socialization and implementation of this tool. The program evaluation showed that Mini SICo provided a practical solution for inventory optimization and made a real contribution to improving the competitiveness and future sustainability of the motorcycle workshop business.]]>
<![CDATA[Comparative Study of RCCP and System Dynamics in Productivity Capacity ]]>
<![CDATA[Purwojatmiko, B. Handoko]]>;
<![CDATA[Cessari, Raissa Annisa]]>;
<![CDATA[Ambarwati, Laksmi]]>;
<![CDATA[Sumasto, Fredy]]>
<![CDATA[ IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 3: October 2024 ]]>
Publisher : <![CDATA[Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana ]]>
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DOI: 10.22441/ijiem.v5i3.23806
<![CDATA[One of the manufacturing companies in Indonesia which is engaged in foundry has a production line for various types of automotive components and has produced 2051 types of products. One of the products produced is the Trunion Bracket. In the molding process, cores are needed that can provide cavities in the product. The current production process has not been able to meet demand because the production cycle time does not match the predetermined time. This discrepancy will affect consumer satisfaction. Therefore, it is necessary to make a schedule for the period July to December 2022, to assist companies in facilitating the scheduling of the production process using Rough Cut Capacity Planning and System dynamics. The calculation results from Rough Cut Capacity Planning indicate that the 5th workstation experienced a shortage of production time from July to September 2022, so an additional number of working hours had to be made. The addition of the number of working hours before improvement was 367 hours and after improvement was 112 hours. Meanwhile, the results of system dynamics modeling for the period July to December 2022, require an additional working hour before improvement by 308 hours and 205 hours after improvement are carried out. The companies can implement strategies based on the results of system dynamics simulations to identify, forecast, and plan production capacity requirements for the next.]]>
