In this research, fixture was designed and implemented on assembly line to improve ergonomics along with reducing the required time and manpower. It reduced the required manpower in half and subsequently led improvement the productivity. Providing ease in operation, fixture significantly reduced fatigue to the workers. The aim of this paper was to design and development of fixture for engine door assembly. The problem with assembly was analysed and fixture is proposed to tackle the key issues. To eliminate traditional trial and error approach, the fixture was designed using CAFD along with FEA validation. The proposed fixture manufactured and deployed in current assembly line. It improves total profitability and quality of process by achieving significant reduction of 40% in assembly time. Prior to fixture, time needed for assembly was 24 minutes. After the fixture, this assembly time reduces to 14.4 minutes i.e. 40% reduction is observed.
Tensegrity structures have been extensively studied over the last years due to their potential applications in modern engineering like metamaterials, deployable structures, planetary lander modules, etc. Many of the form-finding methods proposed continue to produce structures with one or more soft/swinging modes. These modes have been vividly highlighted and outlined as the grounds for these structures to be unsuitable as engineering structures. This work proposes a relationship between the number of rods and strings to satisfy the full-rank convexity criterion as a part of the form-finding process. Using the proposed form-finding process for the famous three-rod tensegrity, the work proposes an alternative three-rod ten-string that is stable. The work demonstrates that the stable tensegrities suitable for engineering are feasible and can be designed.
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