Method For Production Planning Research Articles

Механізми формування та впровадження операційних стратегій у діяльності аграрних підприємств

Introduction. The volatility of the market environment requires agrarian enterprises to change existing ap-proaches to management. Increasing the competitiveness of such enterprises is possible through the development and implementation of appropriate strategies. Particular attention should be paid to marketing activities. The enterprise's operational strategy must be based on an effective production plan. The purpose of the article is to create mechanisms for generating and implementing operational strategies of ag-ricultural enterprises. Results. The importance of a comprehensive approach to the production plan formation of agrarian enterprise is substantiated in unstable economic conditions. There is no correlation between the strategic approaches evaluation and mathematical methods. Approaches to production planning in the process of agrarian enterprise activity are generalized. The objective functions of linear and nonlinear mathematical programming for operational management evaluation are determined. The importance of competitive strategy of agrarian enterprise for maintaining its position in the market has been noted. The factors of a competitive strategy formation of agrarian enterprise are given. The algorithm of strategies modeling of agrarian organization operational activity is developed. The stages of the strategic management system of agrarian enterprise operational activity have been presented and characterized. Alternatives to the production program optimization are offered. The methods of production planning in different market structures are systematized. Conclusions. The proposed algorithm design strategies for agrarian enterprise operational activity facilitate reasonable choice of strategy considering market conditions. Taking into account the specifics of consumer demand for-mation and factors of competitive reaction in the market will allow to determine the optimal ratio of prices and volumes of products. This will help coordinate local plans and optimize revenue. Keywords: operating strategy, strategic management, agrarian enterprise, economic activity, results of activity, production plan, marketing activity.

Uma proposta de planejamento de produção vinculada a margem de lucro dos produtos manufaturados

Para alcançar competitividade, as empresas precisam manter seus planos de produção atualizados visando responder com agilidade às demandas do mercado. Neste artigo, é desenvolvido um novo método de planejamento da produção que visa atender às demandas de mercado considerando a margem de lucro dos diferentes produtos. Este resultado é obtido através da combinação de estimativa de vendas, produção programada e margem de lucro dos produtos envolvidos. A aplicação do algoritmo, em uma empresa de manufatura que fornece produtos ao mercado da construção civil, revelou um ganho de 21% no resultado global em relação ao atual método de planejamento de produção utilizado por esta, comprovando a validade do novo modelo proposto.

Support of Engineering Changes in Manufacturing Systems by Production Planning and Control Methods

Due to changing customer demand and development of new technologies, manufacturing companies have to implement engineering changes in manufacturing systems. Planning and control of these engineering changes is a key task for the company because of the involved costs and time exposure. To improve the organization of several engineering changes in manufacturing systems, methods of production planning and control are evaluated which can support the planning and control of engineering changes.The purpose of the paper is to introduce existing methods for production planning and control in the planning and control of engineering changes in manufacturing systems. In the first step, the tasks of production planning and control and tasks for the implementation of engineering changes are listed. The handling of several parallel engineering changes is of particular importance. The tasks required for pre-selection, detailed planning and control of engineering changes are analyzed. In the second step, these tasks are compared with tasks from the production planning and control on similarities. Furthermore, methods to support these tasks will be considered. In the third step, methods are exemplarily investigated to requirements and usability for the implementation of engineering changes.With the Support of engineering changes in manufacturing systems by production planning and control method, proven existing methods can enhance the engineering changes. Knowledge about relationships in manufacturing systems can be transferred from production planning and control and optimize the implementation of engineering changes.

Multi-assortment rhythmic production planning and control

A method for production planning in a repetitive manufacturing system which allows for estimating the possibility of processing work orders in due time is presented. The difference between two approaches are presented; the first one one-piece flow elaborated in Toyota and the second one elaborated by authors that consists in defining sufficient conditions to filter all solutions and providing a set of admissible solutions for both the client and the producer. In the paper attention is focused on the buffer allocation. Illustrative examples are presented.

English

Materials requirements planning (MRP) is a widely used method for production planning and scheduling. Planned lead-time (PLT) and lot size are two of the input parameters for MRP systems, which determine planned order release dates. In this paper deals with material requirement planning for a three levels production and assembly system with several types of components and one type of final product, in multi periods. In this paper, we assume that components lead-times are probabilistic. A MRP approach with periodic order quantity (POQ) policy is used for the planning of components. The objective is minimizing the sum of the all components holding cost, final product backlogging cost, final product holding cost and setup costs. The main policies in this model determine the periodic order quantity, and planned lead-times. Monte-Carlo simulation is used to generate numerous scenarios based on the components lead time, and by using Monte-Carlo simulation we can find the suitable solution for this problem.   Keywords: planned lead-time; periodic order quantity; uncertainty, Monte-Carlo simulation; Probabilistic lead-time &nbsp

A Simple Multiproduct Multimachine Production Planning Model

Business models of production management and planning have known an important development. Whether it is M.R.P, Kamban or JAT, these planning methods of production require the mastery of the information system. Unfortunately, seldom does such system exist in small and medium size businesses. Sometimes, sophisticated systems based on these methods of production planning were acquired by companies that could afford them only to discover in the end that these systems were not usable because they require a certain level of formation and competence of the human factor, which level is nonexistent in small and medium enterprises and even in larger enterprises in developing countries. Could a more flexible planning system not requiring the existence of an information system too rigid and which can be run by less experienced agents be developed? This article answers this question in the affirmative.

Optimizing Production Planning and Environmental Assessment of Conformity with the Inventory Management Methods in Iran

Analysis of related factors in order of performance characteristics between environmental compliance planning and production planning method in the Institute of industrial paper manufacturing industries, the basic goal of this research has been. The researcher presented a conceptual model to the analysis of this question deals with the degree of environmental compliance plan and method of production planning needs through the organization and process what factors will help to improve performance? Made from the viewpoint of performance, only the production of a manufacturing system with improved control aspects of production activity (reduced work in process manufacturing, reducing waste of time, human resources, reducing waste of time and practical capacity of machinery, equipment and improving quality) will not improve. If the fit between the characteristics of production planning environment, the main program and scheduled production and four dimensions there is mentioned. Total System Performance (liquidity to inventory and products) will not increase, based on the main topics of this paper is formed between the rate of fitness increase production planning environment and planning materials and parts through the impact on the control activity production (due to strong interference factor on the relationship between management commitment to compliance and control of manufacturing activities) increased production and efficiency through the improvement of the system was functioning.