Jurnal Sistem Industri : Jurnal Keilmuan Teknik & Manajemen Industri

ANALISIS PERENCANAAN PERSEDIAAN CARBON BRUSH DALAM KEGIATAN PEMELIHARAAN MESIN DI PT. PEMBANGKITAN JAWA-BALI UPMTW

2018-11-03T06:21:46+07:00

UPMTW is one of power plant PT. PJB. One of the problems in UPMTW today is determining the amount of carbon brush inventory not consider carbon brush replacement schedule. So the request is not based on the calculation of carbon brush needs for electricity production with investment costs. Based on the history of usage and carbon brush supplies in 2015 are stored in the warehouse of carbon brush as many as 149 units with an inventory value of Rp 219.402.500. It is therefore necessary planning and inventory control carbon brush is optimal based on the pattern data when replacing the carbon brush with a way to test the suitability of the failure distribution, calculate the expected demand of carbon brush, specify the number of economic order quantity, reorder point, expected demand for lead time, safety stock, and total cost of inventory. With Minitab software using analysis goodness of fit Anderson-Darling Test results obtained by testing the data distribution has a failure distribution pattern weibull. From the calculation of the inventory of carbon brush with a sample calculation 1 generator for the time inventory planning 180 days result expectations required demand of carbon brush 70 units, the number of economic order quantity 31 units, reorder point 22 units, expectations demand for a lead time of 12 units, safety stock 10 units, and total inventory cost Rp. 4.187.397.

PERAN ENTREPRENEUR ORIENTATION TERHADAP VOLATILITAS USAHA KECIL DAN MENENGAH DENGAN MEDIASI BUDAYA LOKAL DI JABODETABEK

2018-11-03T06:36:54+07:00

This research aim is to find growth strategy of small and medium enterprises (SME) oriented with entrepreneurship by looking at enterpises’ growth and sales based on the ethical discernment of the local culture of SME. This research is conducted in 5 areas i.e. Jakarta, Bogor, Depok, Tangerang and Bekasi. This research is also meant to analyze the impact of strategic growth as prediction tool of the volatility of SME (EO and its scope) and the potential effect of growth strategy on the volatility of SME. Developing literature model of small and medium enterprises’ volatility research with strategic growth based on the ethical discernment of the local cultures. Research method used is quatitative method with random sampling on the entire population of SME in Jabodetabek and tool of analyze used is Struktur Equation Modeling using WarpPLS 5.0 Program. Variance or component based Struktur Equation Modeling used to test hypotheses. The result of this research positively and significantly gives contribution to the role of the ethical discernment of the local cultures of SME and entrepreneurship orientation / strategic growth projected with innovative, risk taking and pro-active, in which give contribution of 56%, 80%, 83% respectively to the entrepreneurship orientation / strategic growth of SME against volatility of SME that is fully moderated by the ethical local culture of SME in Jabodetabek

MODEL BIAYA KUALITAS YANG TERINTEGRASI DENGAN PREVENTION COSTS

2018-11-03T06:42:41+07:00

Dalam era persaingan yang sangat ketat sekarang ini, penghematan biaya produksi dan peningkatan permintaan pasar dapat menjadi penentu apakah suatu usaha dapat berkembang atau sekedar dapat bertahan hidup. Ini berarti bahwa menghasilkan produk yang berkualitas dengan harga yang kompetitif menjadi satu tantangan yang harus mampu ditaklukkan oleh pelaku usaha dewasa ini.

Produk atau jasa yang berkualitas adalah yang memenuhi atau melebihi harapan pelanggan dalam delapan dimensi sesuai dengan kriteria Garvin berikut, yaitu : (1) kinerja, (2) estetika, (3) kemudahan perawatan dan perbaikan,(4) fitur, (5) keandalan, (6) tahan lama, (7) kualitaskesesuaian, dan (8) kecocokan penggunaan.

Biaya kualitas adalah biaya-biaya yang muncul disebabkan karena produk yang buruk kualitasnya. Definisi ini mengimplikasikan bahwa biaya kualitas berhubungan dengan dua kategori dari kegiatan-kegiatan yang terkait dengan kualitas, yaitu : kegiatan pengendalian dan kegiatan karena kegagalan. Kegiatan pengendalian dilakukan oleh suatu perusahaan untuk mencegah atau mendeteksi kualitas yang buruk. Sedangkan kegiatan karena kegagalan dilakukan oleh perusahaan atau oleh pelanggannya untuk merespon kualitas yang buruk. Feiganbaum mendefinisikan kegiatan-kegiatan yang berhubungan dengan kualitas dengan membaginya menjadi empat kategori biaya kualitas, yaitu: (1) biaya pencegahan (Prevention Cost), (2) biaya penilaian (Appraisal Cost), (3) biaya kegagalan internal (Internal Failure Cost), dan (4) biaya kegagalan eksternal (External Failure cost). Biaya pencegahan terjadi untuk mencegah kualitas yang buruk pada produk atau jasa yang dihasilkan. Sejalan dengan peningkatan biaya pencegahan, diharapkan biaya kegagalan turun.

Yang (2008) mengklasifikasikan total manufacturing cost menjadi 33 komponen biaya dalam 5 klasifikasi biaya perencanaan produk baru, pengembangan produk dan desain, usaha memperoleh dan memeriksa kualitas barang yang baru datang, manufaktur proses dan penjulan dan layanan konsumen. Dahlgaard dan Dahlgaard (2002) membahas evolusi biaya kualitas, dari inspeksi dan pengurangan cacat total menuju filosofi manajemen mutu baru, yaitu klasifikasi baru biaya kualitas dengan membuat perbedaan yang lebih jelas antara biaya yang terlihat dan unsur-unsur biaya individu. Permasalahan dalam penelitian ini adalah menggabungkan dua model yaitu model total biaya manufaktur yang dikembangkan oleh Yang dan model yang dikembang oleh Dahlgaard dan Dahlgaard dengan evolusi pengembangan model biaya kualitas.

PENGENDALIAN PRODUK PRIORITAS DENGAN METODA SIMULASI MONTE CARLO PADA AREA FINISH GOODS DI PT. SRI

2018-11-03T06:48:47+07:00

PT. Suryaraya Rubberindo Industries (P SRI) is a company engaged in the distribution of tire. Often the stockout due to high order fluctuations during the current month while the absence of safety stock applications on tire FDR products. This will be very fatal to material procurement and order fulfillment. Therefore, this study discusses the improvement of inventory control of FDR tire priority products in PT. SRI using Probabilistic Inventory Model - Continuous Review Model. The research phase begins with the forecasting of tire FDR products, then classified based on ABC analyst method. After knowing the category of each class, conducted forecasting by using method. The selection of the buer method refers to the smallest MAPE, MSE and MSD values. The results of forecasting serve as the basis for designing inventory control of Deteministic Model. In addition to fitting distribution on sales data to perform Monte Carlo Simulation. The results of Monte Carlo Simulation are range of Economic Order Quantity (EOQ) value, Replenishment Order Point (ROP), Safety Stock, and cost elements in FDR tire product inventory control.

APLIKASI METODA TAGUCHI UNTUK OPTIMASI PARAMETER ELECTRICAL DISCHARGE MACHINING PADA BENDA KERJA BAJA SKS3

2018-11-03T06:53:36+07:00

This research presents the results of experimental research on electrical discharge machining (EDM). The workpiece material is SKS3 steel and the electrode is copper. The Taguchi design used in this experiment by varying the peak flow parameters (3A and 6A), pulse on time (Pon = 100μs and 200μs), and pulse off time (Poff = 50μs and 75 μs). Process performance measured here is the material removal rate (MRR) and electrode wear rate (EWR). The experimental results with the Taguchi method indicate that the largest optimal MRR is 4.8530 mm3 / min with setting Flow = 6A, Pon = 100μs and Poff =50μs. For ERW the smallest optimal value is 0.0000412 g / min in Flow = 3A; Pon =200μs; Poff = 75μs.

From the analysis of variance (ANOVA), Flow (96,97%) and Pon (2,3%) significantly influence MRR while EWR influenced Pon (57,10%) and Flow (38,89%).

IMPLEMENTASI METODE ANALITYC HEARARCHY PROCESS DALAM SISTEM PENGAMBILAN KEPUTUSAN KENAIKAN JABATAN PT TRINETRA

2018-11-03T06:57:14+07:00

PT Trinetra is a private company with a focus on information technology. Competency system is oneway to assess the asset assessment of Human Resources and there is a description of the achievements and potential of human resources in accordance unit works. Achievement and potential employees can be seen whether the competence in accordance with its work tasks. This research will be appointed a case of finding the best solution to help make decisions advancement of employees at PT Trinetra using Heararchy Analytic Process. Research done by finding the weight values for each attribute, such example is the aspect of intellectual capacity, aspects of the work attitude, and behavioral aspects, then do a ranking process that will determine the optimal alternative, namely the promotion of employees.

METODA STUDI KELAYAKAN DALAM PERENCANAAN INFRASTRUKTUR

2018-11-03T07:02:13+07:00

Feasibility studies include the necessary investment, investment fund absorption method, income source tracking, and method of return on investment as well as benefits gained. The preparation of investment funds includes the initiation of the project including the collection of field data. Then the acquisition of land, planning and supervision are also included as the components of required investment funds. Financing includes equipment mobilization, material preparation, field work process, and commissioning. Interest on investment funds is also included as expenses. The division of the work phase, the volume of sub-jobs, and the sub-financing is set in curve S. Occupation of employment, absorbtion of investment funds and work scheduling arrangesment dictate the interest rate of investment funds and return on capital. The proposed feasibility study process is then applied to 2500 MW water power electric plan as dam in Sungai Kayan, East Kalimantan Timur. The study indicates that the project is financially feasible.

USULAN PERBAIKAN KINERJA MESIN TEMPRA DI PT. TAISHO PHARMACEUTICAL INDONESIA TBK

2018-11-03T07:10:38+07:00

The high down time, especially in the production will result in the low value of the effectiveness of a machine. PT. Taisho Pharmaceutical Indonesia manufactures Counterpain, Tempra and Diamond products, where for the company's Tempra product is not able to meet market demand caused by the low of OEE value for 5 months from August 2016 until December 2016 an average of 81,04%. Company at least 85%. As a result the company will experience loss. This study aims to determine the time down time, know the value of OEE, determine the root cause, know the dominant cause factors the high down time and provide action plans to reduce the high time set up and change over. Data collection is done by field method and literature study. Field method is done by observation, interview to production operators, employees, and documentation. In this research, collecting data of production process per week, calculating available rate, performance rate, quality rate, and OEE value. Then, identify the cause of the problem with the ishikawa diagram and trace the cause of failure with FMEA. The results of this study is the high down time will affect the value of the effectiveness of the machine. The analysis is done by looking at the value of Overall Equipment Effectiveness done by processing the production data. Efforts that can be done to reduce down time is to reduce change over time and set up, make SOP, division of tasks between operator and helper. To meet the needs of consumers, the company must make timely production, among others by reducing down time.

ANALISIS KEKUATAN KERANGKA MESIN PENGUPAS LIMBAH KABEL MENGGUNAKAN CAE PADA SOFTWARE PRO-ENGINEERING

2018-11-03T07:16:42+07:00

The rapid growth of waste causes adverse impacts on the environment therefore a good processing effort is required. One of the waste that has high selling value is electrical waste that is copper from the cable core. Currently the copper from the cable obtained by burning the bad impact of burning dioxin release and become a trigger against the onset of cancer. Therefore it is necessary to create an environmentally friendly cable peeler machine, so that the machine can be used properly and safely it is necessary to analyze the engine framework. The results of the analysis using pro-engineering software found that the engine framework is safe because Von Mises stress produced 5.4 MPa smaller than the yield strength of steel used is ST37 of 105 MPa is supported also with the value of strain of 0.00016 N / mm2 occurred at the distance 100 mm, displacement that occurs relatively small that is 0.13mm.