scholarly journals OPTIMASI TARGET PRODUKSI BERBIAYA ALOKASI PEKERJAAN MINIMUM DENGAN PENDEKATAN PROGRAM LINIER (STUDI KASUS : PT. TASS ENGINEERING)

2019 ◽  
Vol 4 (2) ◽  
pp. 81-93
Author(s):  
Helena Sitorus ◽  
Ratna Suminar ◽  
Arohman Dwi Santoso
Keyword(s):  
Optimum Allocation ◽  
Dump Truck ◽  
Assignment Method ◽  
Maximum Profit ◽  
Dump Trucks ◽  
Research Findings ◽  
Optimum Solution ◽  
The Cost ◽  
A Company ◽  
Production Target

AbstrakPT. TASS Engineering adalah perusahaan yang bergerak di bidang karoseri truk. Perusahaan ini bekerja sama dengan pihak kedua (pemborong) dalam menyelesaikan pekerjaan untuk memenuhi pesanan pelanggan. Diantara produknya, terdapat 4 jenis produk (Dump Truck, Subframe, Tilting, dan Tanki Truck) yang pengerjaannya diserahkan kepada 4 tim  pemborong. Keputusan alokasi pekerjaan dilakukan dengan cara memberikan pekerjaan kepada tim yang sudah menyelesaikan pekerjaan tertentu. Cara alokasi ini ternyata menimbulkan biaya tiap tim dalam mengerjakan satu jenis produk yang sama  cukup bervariasi. Variasi biaya pengerjaan tentu saja berdampak bagi variasi keuntungan. Perlu ditentukan alokasi jenis dan jumlah pekerjaan yang tepat bagi masing-masing tim sehingga mendapatkan keuntungan yang maksimum. Hasil alokasi optimum adalah parameter keputusan kombinasi jumlah produksi tiap produk selain kapasitas tiap tim dan waktu pengerjaan.. Kombinasi jumlah tiap produk ini merupakan target produksi atau target penjualannya. Untuk itu diperlukan penelitian yang bertujuan 1) menentukan alokasi pekerjaan yang optimum, 2) menentukan target produksi tiap produk untuk mendapatkan keuntungan maksimum. Alokasi pekerjaan dilakukan dengan membandingkan metode Penugasan Hungarian dan metode Transportasi untuk memilih total biaya yang paling minimum. Solusi optimum jumlah produk yang diproduksi untuk mencapai keuntungan maksimum dilakukan dengan Program Linier. Hasi temuan penelitian menunjukkan bahwa 1) dump truck dikerjakan sebanyak 88% oleh tim-1 dan 12% oleh tim-4; subframe dikerjakan sebanyak 39% oleh tim-2, 26% oleh tim-3, 35% oleh tim-4; tilting dikerjakan oleh tim-3, dan tanki truk dikerjakan oleh tim-2. Target produksi (target penjualan) untuk mendapatkan keuntungan maksimum adalah dengan memproduksi dump truck 73 unit, subframe 120 unit, tilting 29 unit, dan tanki truk 33 unit. Solusi ini memberikan kenaikan keuntungan sebesar 0.9%.. Kata kunci: optimum, Hungarian, Transportasi, Program Linier AbstractPT. TASS Engineering is a company engaged in the truck body. The company is working with a second party (contractor) in completing jobs to fulfill customer orders. Among its products, there are 4 types of products (Dump Truck, Subframe, Tilting, and Tanki Truck) whose job is submitted to 4 teams of contractors. The decision on job allocation is done by givingit  to the team that have alredy completed their jobs. This allocation method turns out to cost each team to work on the same type of product that is quite varied. Variations in the cost of work, of course, have an impact on variations in profits. It is necessary to determine the allocation of the type and amount of work that is right for each team so as to get the maximum profit. The optimum allocation result is the decision parameter for the combination of the amount of production of each product in addition to the capacity of each team and the processing time. For this reason research is needed which aims to 1) determine the optimum allocation of work, 2) determine the production target of each product to get the maximum profit. The work allocation is done by comparing the Hungarian Assignment method and the Transportation method to choose the minimum total cost. The optimum solution for the number of products produced to achieve maximum profit is done by the Linear Program. The results of the research findings show that 1) dump trucks were handled by 88% by team-1 and 12% by team-4; subframes are done by 39% by team-2, 26% by team-3, 35% by team-4; tilting is done by team-3, and truck tank is done by team-2; 2)the production target (sales target) to get maximum profit is to produce 73 units of dump trucks, 120 units of subframes, 29 units of tilting, and 33 units of tank trucks. This solution provides a profit increase of 0.9%.Keywords: optimum, Hungarian, Transportation, Linier Programming

scholarly journals Increasing life of pit dump truck motor-wheel gearboxes by introducing the monitoring of the actual technical condition

2021 ◽  
Vol 6 (4) ◽  
pp. 267-276
Author(s):  
A. A. Khoreshok ◽  
A. V. Kudrevatykh ◽  
A. S. Ashcheulov ◽  
A. V. Vinidiktov ◽  
L. I. Kantovich
Keyword(s):  
Technical Condition ◽  
Dump Truck ◽  
Mining Equipment ◽  
Quality Performance ◽  
Equipment Operation ◽  
Maintenance Service ◽  
Dump Trucks ◽  
Combination Of Methods ◽  
The Cost ◽  
Physical And Chemical

At present, Kuzbass coal strip mines pay great attention to improving quality performance of mining equipment operation, including reliability and durability of components and units. One of the ways of the performance improvement is decreasing number of unforeseen failures. To achieve this purpose a mine dump truck part diagnostics should be introduced into a maintenance service procedure. At the same time the process of diagnostics should not increase the machinery downtime, but effectively reveal a condition of motor-wheel gearboxes in the course of dump truck operation. The aim of the research is to increase the reliability and service life of motor-wheel gearboxes of large BelAZ dump trucks. Failure of a motor-wheel gearbox is a rare phenomenon, but the cost of a new gearbox can vary from 3.5 to 10 million rubles. That is why it is important to implement such methods of diagnostics, which allow revealing the condition of gearboxes in the shortest possible time and without disassembling corresponding units. Determination of the actual technical condition of motor-wheel gearboxes is possible by different methods: vibroacoustic; acoustic; thermal; physical and chemical analysis of spent operating materials. The studies showed that none of these methods can be used as a universal one. When justifying and selecting the most suitable method, different factors should be considered, including technological, or a combination of methods should be applied, which will reduce risks, but at the same time increase costs. It is necessary to develop a better diagnostic method based on the use of several methods simultaneously.

scholarly journals ANALISIS BIAYA DIFERENSIAL DALAM PENGAMBILAN KEPUTUSAN MEMBELI ATAU MEMPRODUKSI SENDIRI DAN ANALISIS BIAYA PELUANG PADA RM. PONDOK HIJAU

2015 ◽  
Vol 4 (1) ◽  
pp. 51
Author(s):  
. Elvalina ◽  
David P.E. Saerang ◽  
Victorina Z. Tirayoh
Keyword(s):  
Opportunity Cost ◽  
Raw Materials ◽  
Quantitative Result ◽  
Opportunity Costs ◽  
Costs Analysis ◽  
Maximum Profit ◽  
Differential Costs ◽  
The Right ◽  
The Cost ◽  
A Company

Economic growth in the era of globalization requires the company to gain maximum profit. Running business requires information. A company should be able to compete with other companies. One of the decisions that must be taken in planning at every alternative is to buy or produce itself a component of raw materials. Differential costs are related to the opportunity costs, which is the differential costs incurred costs as a result of certain decisions while the opportunity costs is the cost incurred when choosing a decision. The purpose of this study to analyze the differential costs in taking the decision to buy or produce itself and to analyze the opportunity cost to decisions taken on RM. Pondok Hijau. The analytical method used is descriptive  quantitative. Result of differential costs analysis showed that the right decisions can be taken by the management company that manufactures its own because getting a higher differential gain, compared to buying from outside. And of the opportunity costs analysis produce itself rew materials are also more profitable, thus buying from outside becomes more expensive.

Specifics of the Discount Rate Calculaton in the Business Valuation

2018 ◽  
Vol 11 (3) ◽  
pp. 83-88 ◽  
Author(s):  
V. V. Grigoryev
Keyword(s):  
Cash Flow ◽  
Discount Rate ◽  
Weighted Average ◽  
Equity Capital ◽  
Additional Risk ◽  
Business Valuation ◽  
Research Findings ◽  
Rate Calculation ◽  
The Cost ◽  
A Company

The paper examines two main methods of the discount rate calculation for business valuation: cumulative and weighted average capital cost (WACC), discloses the importance of business valuation for improving the business activity of a company, proposes the principles of the discount rate calculation, examines ways to determine additional risks in the implementation of the cumulative method, and analyzes the costs of the equity and borrowed capital in the implementation of the WACC method. The purpose of the research was to perform a comprehensive analysis of the methods for calculating cash flow discount rates for equity capital and for all invested capital. The research resulted in the development of methods for measuring additional risks in the calculation of the cash flow discount rate for equity and identifying risks in the calculation of the weighted average discount rate of the cash flow for the total invested capital. The research findings can be used for boosting business activities as well as for business valuation and management. It is concluded that every percent of additional risk in the discount rate calculation increases the size of the rate and reduces the cost of a valuated business.

scholarly journals Distribution of Static Normal Reactions to Wheels of Open-Pit Dump Trucks Depending on the Longitudinal and Cross Sections of the Open-Pit Road

2019 ◽  
Vol 105 ◽  
pp. 03009
Author(s):  
Michail Dadonov ◽  
Alexander Kulpin ◽  
Oleg Ostanin ◽  
Erkin Suleimenov
Keyword(s):  
Rock Mass ◽  
Cross Sections ◽  
Normal Load ◽  
Operating Conditions ◽  
Open Pit ◽  
Dump Truck ◽  
Mass Transportation ◽  
Premature Failure ◽  
Dump Trucks ◽  
The Cost

Vehicle costs for rock mass transportation are more than 50% of total costs, among which 25 — 30% are tire costs. The average tire life in mining enterprises is lower than that the value recommended by production plants. The tire life of open-pit dump trucks is more dependent on the normal load on the wheel. The main factor in the change of the normal load is location of the wheel on the dump truck and the open-pit road’s section. Determination of the maximum loaded tire in different operating conditions will allow increasing the tire life and preventing its premature failure. The TKPH index (tire performance) recommended by tire manufacturers does not take into account the diversity of mining conditions and variations of sections of open-pit roads on different routes. The average load per trip is defined as movement of a loaded open-pit truck and an empty open-pit truck on a straight reach of a road. The proposed method for recording of redistribution of the load on the wheel allows making adjustments to recording of TKPH indexes and thereby effectively managing the tire life, which in turn will make it possible to more fully use the tire life, increase its reliability and reduce the cost of rock mass transportation.

scholarly journals ANALISIS PENERAPAN VARIABEL COSTING SEBAGAI ALAT UNTUK MENGHITUNG HARGA POKOK PRODUKSI PADA AKSAN BAKERY DI MANADO

2016 ◽  
Vol 11 (3) ◽  
Author(s):  
Tety Darise ◽  
David Paul Elia Saerang ◽  
Anneke Wangkar
Keyword(s):  
Calculation Method ◽  
Descriptive Analysis ◽  
Variable Cost ◽  
Selling Price ◽  
Research Findings ◽  
Cost Of Production ◽  
The Cost ◽  
A Company ◽  
Keywords Cost

Determining the cost of goods sold is right becomes one factor supporting the success of a company in achieving its goals , the cost of production has an important role in a company , due to the determination of the cost of goods sold , the company could easily determine the selling price , and the targeted profit also clear. This research was conducted at a company manufacturing in Manado . This study aimed to analyze the application of variable costing in Aksan Bakery in Manado. Data analysis method used is descriptive analysis . The data used is qualitative data , the data is presented in a descriptive or shape description and quantitative data , the data presented in the form of numbers. The research findings show that the application of variable costing method can be used as a tool to calculate the cost of production in the Aksan  Bakery. It can be seen from a comparative analysis of the cost of goods sold according to variable costing lower than the production cost price calculation method used Aksan Bakery. By using the full costing method used by companies the cost of goods sold Rp . 1.191.956 .000 while according to the variable cost of production costing Rp . 1.033.560.000. The main difference between full costing calculation method used by the company with variable costing method lies in the treatment of factory overhead costs .Keywords : cost of goods sold, variabel costing

scholarly journals Reducing The Operational Stop Time of Hauller Komatsu Hd465-7 by Using the Six Sigma’s Approach in PT X

2016 ◽  
Vol 7 (2) ◽  
Author(s):  
Humiras Hardi Purba
Keyword(s):  
Six Sigma ◽  
Dump Truck ◽  
Heavy Equipment ◽  
Stop Time ◽  
Driving Speed ◽  
Plan Selection ◽  
Dump Trucks ◽  
Standardization Process ◽  
The Cost ◽  
And Control

An operational stop time is a condition where heavy equipment is not working as usual. It is important to avoid this condition since excessive idling wastes an enormous amount of fuel and money. However, the operational stop time of a dump truck Hauller HD465-7 is 2.83 minutes, which is far above the normal standard. This project aims to optimize the improvement of an operational stop time by using a Six Sigma method with optimize plan selection. This will return the operational stop time to the standard range within 1.25 to 1.65 minutes. These steps of define, measure, analyze, improve, and control are applied to the standardization process according to the rules and criteria established by the Six Sigma. The result found that the Six Sigma’s approach which was applied in PT X has reduced the cost from US$1,105,300 to US$963,000 every month. An improvement have been made to matching fleet by combining six fleet of dump trucks at driving speed of 22 km per hour and the average simulated haul distance was 2,000 meters.

scholarly journals Development of a simulation dump truck dynamics model to estimate loads acting on its carrier and load platform when loading and dumping bulk loads

2022 ◽  
pp. 117-126
Author(s):  
M.V. Zalesov ◽  
V.A. Grigoreva ◽  
V.S. Trubilov ◽  
A.Ya. Boduen
Keyword(s):  
Mathematical Model ◽  
Joint Modeling ◽  
Dump Truck ◽  
Mining Operations ◽  
Durability Analysis ◽  
Dump Trucks ◽  
Bulk Load ◽  
Calculation System ◽  
Dynamics Calculation ◽  
The Cost

It is important for mining dump trucks to minimize the weight of the carrier and the load platform while maintaining a sufficient level of their rigidness and strength. This requirement significantly affects the weight of the transported material, the cost of transportation and, consequently, the economic efficiency of mining operations. Processes of loading and dumping of bulk loads, which is transported by dump trucks, make a significant contribution to reducing the service life of the carrier. Therefore, proper consideration of the bulk load dynamics is an important and relevant task. Contemporary systems for calculating the dynamics of solids allow for joint modeling with applications designed to calculate the dispersed body dynamics. This approach helps to obtain adequate loads in the pivots and force links of the model, to analyze the loading of the load platform, to asses the durability of the dump truck elements, to define the geometry of the load platform. In order to perform the simulation, it is required to develop a mathematical model of a dump truck, including all its key elements and subsystems, a model of the bulk load, and a model of the load platform. The purpose of the study is to develop a mathematical model of a mine dump truck to determine the loads in the pivots and force links connected to the carrier and the load platform for the strength calculations and durability analysis. The calculations are made with the combined use of the solids dynamics calculation system and the application to calculate the dynamics of dispersed bodies.

scholarly journals Energy Assessment of BelAZ-75131 Gas-diesel Mining Dump Trucks Operation at Kuzbass Open Casts

2020 ◽  
Vol 174 ◽  
pp. 03010
Author(s):  
Ilya Kuznetsov ◽  
Ivan Panachev ◽  
Georgiy Dubov ◽  
Sergey Nokhrin
Keyword(s):  
Natural Gas ◽  
Diesel Fuel ◽  
Liquefied Natural Gas ◽  
Dump Truck ◽  
Energy Estimation ◽  
Gaseous Fuels ◽  
Energy Assessment ◽  
Dump Trucks ◽  
Gas Consumption ◽  
The Cost

The parameters of the BelAZ-75131 heavy dump truck im- proved model using gas-diesel mixture are given in the paper. The moni- toring analysis of the conditions and operation indicators of BelAZ-75131 heavy dump truck using diesel and gaseous fuels is done. Numerical and percentage values of the replacement of diesel fuel with liquefied natural gas when transporting exploded rock mass are determined; the volume of diesel fuel and liquefied natural gas consumption has been established. The analytical dependence to calculate the cost per unit of energy during trans- portation by mining dump trucks with gas equipment is determined. The energy estimation of diesel and gas-diesel mining dump trucks operation is given.

Identyfikacja kosztów pogorszenia reputacji przedsiębiorstwa z perspektywy interesariuszy

2014 ◽  
pp. 10-15
Author(s):  
Danuta Szwajca ◽  
Alina Rydzewska ◽  
Tomasz Nawrocki
Keyword(s):  
Cost Analysis ◽  
Economic Costs ◽  
Crisis Situation ◽  
Modern Economy ◽  
The Cost ◽  
A Company ◽  
Crisis Situations

In the realities of modern economy even the best-managed company is not able to avoid threats and bad decisions, that can cause a crisis. Each crisis situation, that a company experiences, generates not only measurable economic costs, but also more difficult to assess and measure costs of a deteriorated reputation. These costs are the result of infringement of interests or failing to satisfy different stakeholders expectations. The aim of this article is an attempt to identify the cost of reputation deterioration in the context of the various interests of stakeholders groups. In the first part, the paper presents the effects of good and bad reputation, the reputation "contamination" path in a crisis situation and a cost analysis caused by it. The second part is empirical, where the identification of crisis situations measurable costs and reputation deterioration based on the examples of three selected companies was performed.

PERBAIKAN TATA LETAK LANTAI PRODUKSI INDUSTRI MEBEL MENGGUNAKAN METODE GRAFIK DAN ALGORITMA CRAFT

2020 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Kuswanto Kuswanto ◽  
Juan Junius ◽  
Anita Christine Sembiring
Keyword(s):  
Operating System ◽  
Material Handling ◽  
Facility Layout ◽  
Integrated Planning ◽  
Furniture Manufacturing ◽  
Milling Machines ◽  
Material Handling Costs ◽  
The Cost ◽  
A Company ◽  
Research Show

Facility layout is integrated planning of the flow of a product in an operating system to obtain the most effective and efficient interrelation between workers, materials, machinery, and equipment as well as handling and transferring materials. A company engaged in furniture manufacturing has a problem in its production process, namely, the distance between machines is too far so that it affects the cost of handling materials. Distant workstations are found on profile machines, milling machines, measuring machines, cutting machines. Therefore, improvements must be made to the layout of facilities on the production floor so that facility layout is efficient and material handling costs are reduced. The problem-solving approach used is the Graph Method and CRAFT Algorithm. The results of the research show that material handling costs are reduced by 7.58% or Rp. 17,765 using the CRAFT algorithm.

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