FBE- Malzeme ve İmalat Lisansüstü Programı - Yüksek Lisans
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Konu "Asansör kabinleri , Asansör modelleme , Bilgisayar destekli tasarım, Eş zamanlı mühendislik , Montaj , Sistem tasarımı , Sistematik tasarım" ile FBE- Malzeme ve İmalat Lisansüstü Programı - Yüksek Lisans'a göz atma
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ÖgeProduct design assembly application, traffic design and simulation on double deck elevator systems(Institute of Science And Technology, 2012-06-05) Kocaman, Murat ; İmrak, Cevat Erdem ; 503081330 ; Material and Manufacturing Engineering ; Malzeme ve İmalatThe object of this study is defining double deck elevator systems and evaluating them as traffic analysis and easy design on assembly and manufacturing by using the method called design for manufacturing and assembly (DFMA) that is an element of concurrent engineering (CE). The criterions of the method are discussed in detail and determined results are evaluated for virtual models for both traffic and CAD designs.There are nine chapters in this study and the first chapter contains general information on double deck elevators for both mechanical and traffic designs. The need of developments is evaluated depend on the whole system. Also, some of the related works of the double deck are given with the abstract.In the second chapter, the basic factors of product design are defined and approaches of the method and its sub-groups are mentioned. General flows of concurrent engineering and its effects on products are explained with the advantages and disadvantages. A definition of manufacturing effect to design is given with classification table and the table is considered in processing of the product. Flexibility, quality of product and cycle time informations are given in tables.The third chapter includes DFMA method that will be used for double deck elevator car. Definition of the is given first and the aim of usage of the method is discussed. Principles and methodologies that occur DFMA are explained. Boothroyd-Dewhurst method is focused in detail hence it?s the used method on the application. Some features affecting the handling is discussed with figures. Possible faults than can be encountered generally are shown with figures and standardizing assembly types are explained. Fastening methods are given depend on increasing cost and time. Repositioning state and CAD relation with DFMA is discussed with feature effects. Standardization in DFMA is also given. The general application used before are given for defining DFMA practically. DFMA depend of the used material subject is discussed with a statistical information. Design features that improve assembly processes are another subject of the related chapter.The fourth chapter gives the main approaches of system design for the pedestrian flow. Performance criterions follow the main definitions of lift systems. Design parameters and implementations of the whole design with design team are discussed at the end of the chapter. The role of design team for the related product is shown with general explanations and all the groups related to the others are given in table. The groups contains the list of the related parameters.Circulation concept is discussed in the fifth chapter. The factors that have the effect on circulation are tried to be explained. Density effects are tried to be defined with density flows. The titles of traffic analysis are explained with the related formulas. There are some assumptions that effect the round trip time concept are shown and calculation parameters are discussed at the end. Illustrations show the general situation of round trip time concept.Sixth chapter is the chapter that has the subjects of double deck systems, double deck lift designs and traffic design calculations. Traffic design concept is evaluated in two different approach of analytical and Poisson?s. Some elements are not evaluated and shown in the related sub-chapter. Round trip time is one of them and it is evaluated in analytical approach only by giving Kavounas formulate taken from the text of the Kavounas work.Seventh chapter contains simulations and calculation results for the 66 floor high rise building. Distance travelled to reach rated acceleration (m), time elapsed to reach rated acceleration (s), speed at rated acceleration (m/s), distance travelled to reach rated speed (m) and time elapsed to reach rated speed (s) values are given with the results of ELEVATE analyse. The analysis are given according to the results of ELEVATE 6 and ELEVATE 8 programs. ELEVATE program usage is also given with screens and explanations. Simulation result tables are given and commented in this chapter. The calculations are based on calculating the probable number of stops and average reversal floors of a lift during its round trip. Lifts may be zoned to take into account the passenger split between different groups of lifts which may not be the same size, same speed or which may not serve the same floors.In the eighth chapter, double deck elevator cab is given as original and revised designs that are designed by using Solidworks 2011 program as CAD software are compared depend on the part number and another specific rules of Boothroyd-Dewhurst method. Efficiency for design is tried to be improved in related study of this work. The results that are reached in the application of double deck elevator car design study are discussed. Also, the results are given in tables for handling time and total assembly time for seconds with part elimination evaluation factor that is explained with detail at chapter three. The handling time and assembly time for each part are given and the values of them are reached with the related appendix given with this study. Total part number for each design can be seen at the tables of the chapter for both designs.The ninth chapter is the final chapter and general results of the methods and applications that are mentioned in previous chapters are given and validity of them are discussed.