This paper presents an alternative algorithm for solving the laser cutting path problem which was modeled as Generalized Traveling Salesman Problem (GTSP). The objective is to minimize the traveling distance of laser cutting of all profiles in a given layout, where a laser beam makes a single visit and then does the complete cut of individual profile in an optimum sequence. This study proposed a hybrid method combining population-based simulated annealing (SA) with an adaptive large neighborhood search (ALNS) algorithm to solve the cutting path problem. Recombination procedures were executed alternately using swap, reversion, insertion and removal-insertion through a fitness proportionate selection mechanism. In order to reduce the computing time and maintain the solution quality, the 35% proportion of population were executed in each iteration using the cultural algorithm selection method. The results revealed that the algorithm can solve several ranges of problem size with an acceptable percentage of error compared to the best known solution.
Blora and Grobogan are regions with higher production capacity of corn commodity compared to other regions in Central Java province. However, low number of technical irrigation and el-nino phenomenon have become the main threat for the sustainability of corn farming in both regions. During dry session, the top soil of the land are solidified which lead to higher difficulty for planting the corn seed using traditional tool. An improved design of the traditional seeder is then required to solve this problem to enable farmers plant corn seed during dry session. The objective of this research was to develop seeder prototype with “Tugal Dalam” type in Blora and Grobogan regions where the land have been categorized as marginal land during dry session. The proposed design is based on technical, ergonomic, economical, and social aspect. The qualitative approach was used to obtain the technical, ergonomical, economical and social aspect required by the farmer. Kansei Engineering is used to translate and evaluate the proposed design through some tests conducted on several group of farmers where they were requested to use 4 seeder design options and write their preference on each design option based on the mentioned aspects. Tests confirmed that the proposed design can be used to plant a corn seed at farmers desired characteristics. Kansei engineering also confirmed that ‘high speed’, ‘easy to operate’, ‘low price’, ‘easy to handle’ and ‘has a watering system’ were preferred by the farmers and determined their decision on buying and using the seeder tool. Keywords: kansei engineering, marginal land, seeder development, tugal dalam
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.