SYSTEM SIMULATION FOR HYDRAULIC EXCAVATOR

Abstract

The various hydraulic components for excavator have been developed in KYB Corporation. In early stage of the product development, we usually use calculation of static characteristics, but we do not use calculation of dynamic characteristics for the system. The dynamic characteristics of the system are tuned using actual system in middle stage of the product development. Therefore it is often necessary to extend the product development time. In order to decrease the development time, we developed a simulation model of excavator system for dynamic characteristics calculation. This paper shows case studies of the system simulation for hydraulic excavator applied to the digging-turning-loading cycle analysis.