Krishnan Aditya, Rao Balkrishna C
Engineering Design Department, Indian Institute of Technology, Chennai, India.
PLoS One. 2025 Jun 24;20(6):e0325503. doi: 10.1371/journal.pone.0325503. eCollection 2025.
Businesses are increasingly keen on going frugal due to increasing demand for sustainable and low-cost products that do not sacrifice quality. However, there is a dearth of tools for the systematic design and engineering of frugal products from scratch in the industry. Accordingly, a new approach has been applied in this paper for the formal design of a frugal jaw crusher for the mining industry. Consequently, this paper uses the factor of frugality (F of FN) which is a composite number that combines the safety factor (N) with fractions of material saved in various stages of product-development. In doing so, this work has iteratively applied the factor of frugality to the relevant components of a jaw crusher. And rigorous design procedures are adopted, for maintaining quality, due to the use of lower safety factors in making the product frugal. Contemporary concepts like generative design, design for manufacturing and biomimetics have been explored to achieve frugality in the relevant "bulky" components of a jaw crusher. Accordingly, factors of frugality of 1.871.79, 1.761.68 and 1.631.33 have been obtained for the flywheel, the Pitman and the rear wall, respectively, based on the frugal approach. Therefore, use of the new frugal design approach has resulted in material savings of 8%, 7% and 30% and increases in factor of safety of 35%, 71% and 18% in the flywheel, the Pitman and the rear wall, respectively, over their base values. Such savings in materials have been accompanied by moderate cost reductions with improvement in functionality and this trio of features is typical of an advanced frugal product.
由于对可持续且低成本且不牺牲质量的产品需求不断增加，企业越来越热衷于厉行节约。然而，行业中缺乏从头开始系统设计和制造节约型产品的工具。因此，本文采用了一种新方法对采矿业用的节约型颚式破碎机进行形式化设计。为此，本文使用了节约因子（FN中的F），它是一个复合数，将安全系数（N）与产品开发各个阶段节省的材料比例相结合。通过这样做，这项工作将节约因子迭代应用于颚式破碎机的相关部件。并且由于在使产品节约的过程中使用了较低的安全系数，因此采用了严格的设计程序来保证质量。为了在颚式破碎机的相关“大型”部件中实现节约，对生成式设计、面向制造的设计和仿生学等当代概念进行了探索。据此，基于节约方法，分别得出飞轮、连杆和后壁的节约因子为1.87至1.79、1.76至1.68和1.63至1.33。因此，与基础值相比，采用新的节约型设计方法分别使飞轮、连杆和后壁的材料节省了8%、7%和30%，安全系数分别提高了35%、71%和18%。这种材料节省伴随着适度的成本降低以及功能的改进，而这三个特点是先进节约型产品的典型特征。
