Optimización del diseño en manufactura y ensamblaje de un producto de ayuda técnica para personas con movilidad reducida en la playa

Las playas han sido uno de los mayores atractivos turísticos de Costa Rica y el 76 % de los turistas extranjeros las han frecuentado en su estadía en el país. De hecho, Costa Rica fue elegido el mejor destino a nivel mundial para la población jubilada. Pero, curiosamente, una de sus mayores problemáticas ha sido que muy pocas playas son accesibles y amigables para personas con discapacidad o adultos mayores. Actualmente, existen solo siete playas con rampas para sillas de ruedas o entradas accesibles en el país. Para solventar este problema, fueron diseñadas las muletas Amphibio, una ayuda técnica para que personas con movilidad inferior reducida puedan disfrutar de este ambiente. Se estudió y aplicó la metodología de Design for X y Design for Manufacture and Assembly (DFMA), con lo cual se logró optimizar el proceso de manufactura del producto y se concluyó con una nueva versión con mejoras significativas en su proceso de ensamble y fabricación. La implementación de estas metodologías en el desarrollo del producto logró generar un nuevo diseño tomando en cuenta no solo al usuario, sino también su fabricación y ensamblaje. Se observaron mejoras significativas en términos de cantidad de piezas, materiales principales, tipos de uniones y procesos de manufactura.

Biomass Stove Design Based Quality Function Deployment (QFD) and Design For Manufacture And Assembly (DFMA)

This study aims to design a biomass stove as a solution for lack of LPG gas in the community in Batu Panjang, Rupat Island, Riau. The Quality Function Deployment (QFD) method is used in this study by elaborating consumer needs through public opinion needs (questionnaire survey) and elaboration of the characteristics of consumer needs. A House of Quality (HoQ) matrix was created to determine the technical characteristics for design analysis of biomass stove and designed using the Design for Manufacture and Assembly (DFMA). The result was a development of "Biomass Stove", which consists of a funnel for fuel, a fire funnel, a filter and an air chamber. The funnel chamber, which the fuel was made the insulation channel and the joining of the fire connector, forms an angle to increase the heat flow to funnel fuel and reduce the heat loss during cooking. The stove design is made safe, comfortable for users and environmentally friendly due to the existence of a filter and air chamber cover. The biomass stove was designed portable, and then it was light and easy to move around.

DfMA: Towards an Integrated Strategy for a More Productive and Sustainable Construction Industry in Australia

Design for manufacture and assembly (DfMA) is an important part of the future of the construction industry due to the promise of speed of project delivery, quality control, worker safety, and waste minimization onsite via the purposeful design for manufacture and assembly offsite. However, the adoption of DfMA in Australia has been slow. This paper investigates the barriers prohibiting widespread uptake and how digital construction will be a catalyst for improving use on commercial-scale projects. A total of six leading experts were interviewed to elicit their opinions, and seven recent case studies of high-rise modular apartment and hotel buildings constructed by Hickory were cross-referenced as evidence of DfMA capability. The experts suggested that the reasons for slow adoption in Australia were community mindset, government regulations and incentives, planning and building codes, unionization and business politics, finance, and supply chain management. The case studies suggest that compatible building type and transportation distance are also factors. These barriers can be addressed by the clever integration of building information modelling tools with lean construction processes as part of a proposed strategy leading to smarter (more productive) and better (more sustainable) outcomes predicated on growth in digital construction practices. The paper concludes with a proposed framework for change that conceptualizes the ‘ecosystem’ needed to support widespread DfMA in the Australian context, including the paradigm shift from building to manufacturing/assembly, the displacement of workers from onsite to offsite activity, and the expansion of interdisciplinary design and construct collaboration.

PENGEMBANGAN PRODUK ALAT PENGAYAK PASIR SECARA MANUAL DENGAN METODE DESIGN FOR MANUFACTURE AND ASSEMBLY (DFMA)

Di zaman yang serba modern ini, sudah banyak alat pengayak pasir inovasi-inovasi baru yang diciptakan untuk memudahkan penggunanya dalam aktivitas sehari-hari. Akan tetapi, banyak produsen pengayak pasir yang fokus tertuju kepada produk yang efektif dan efisien. Banyak pekerja bangunan yang mengalami ke capekan dan ketidak nyamanan yang membutuhkan inovasi produk lebih dari pengayak pasir saat ini. Sementara itu pada saat ini tidak ada alat pengayak pasir yang efektif dan efisien dengan harga yang terjangkau. Pengayak pasir ini juga dirancang untuk mengurangi jumlah tenga kerja, sehingga produk ini memiliki nilai tambah di masyarakat. Untuk mewujudkan tujuan itu digunakan metode Design For Manufacturing And Assembly (DFMA). Design For Manufacturing And Assembly (DFMA) adalah suatu metode untuk perancangan dan pengembangan produk. Design For Manufacturing And Assembly (DFMA) juga didefinisikan oleh sebagai suatu metode terstuktur untuk melakukan perancangan dan pengembangan produk sesuai yang diinginkan oleh konsumen serta mengevaluasi secara sistematis kapabilitas suatu produk atau jasa untuk memenuhi kebutuhan konsumen.