The excavator carrier is a device for moving the excavator. There are many operational benefits in using this carrier to transport excavators safely, easily, and efficiently. An earlier model of this carrier is manufactured and in tests showed that the design needs to be improved. In this paper, a finite element method is used to model and analyze this carrier and optimize the design for better performance. The static and dynamic analysis is done to optimizing carrier design for removing the defect that identified in practical test. The goal of optimization is to increase the carrier's life, increase the safety of transportation, decrease the cost, and finally, commercialize the product. The results show that the carrier's weight is decreased by up to 30%. Also, a holder and lock system in the back of the carrier is designed for increasing the transportation safety and the stiffness of the carrier chassis. The effect of increasing a suspension system is studied, the idea is using leaf spring. The numerical results show that using the suspension system increases the carrier's life by up to 30% while adding a suspension system increases manufacturing costs by up to 10%.

挖掘机托架是用于移动挖掘机的装置。使用该托架安全、轻松、高效地运输挖掘机有许多操作优势。制造了这种载体的早期模型，并且在测试中表明设计需要改进。在本文中，使用有限元方法对该载体进行建模和分析，并优化设计以获得更好的性能。静态和动态分析是为了优化载体设计，以消除实际测试中发现的缺陷。优化的目标是增加载体的寿命，增加运输的安全性，降低成本，最终实现产品的商业化。结果表明，载体的重量减少了多达 30%。还，运输车后部的支架和锁定系统旨在提高运输安全性和运输车底盘的刚度。研究了增加悬挂系统的效果，想法是使用板簧。数值结果表明，使用悬挂系统可将载体的寿命提高多达 30%，而添加悬挂系统会使制造成本增加多达 10%。