- مبلغ: ۸۶,۰۰۰ تومان
- مبلغ: ۹۱,۰۰۰ تومان
This paper discusses possible failure modes in zonal hydraulics for construction machinery. The "zonal" or "decentralized" hydraulics is one of the methods first introduced in the aerospace industry and utilized for hybridization of construction machinery. This method is realized with pumpcontrolled actuators, which are distributed throughout the system. Due to both electric and hydraulic components being involved and tough working conditions, electro-hydraulic systems such as zonal hydraulics tend to be very complex, and where each one of components can fail. If any of the parts of the electrohydraulic system are damaged, the appearing problems may be hard to diagnose due to the complexity of a multi-domain system. A general description of zonal hydraulic systems and their components are introduced. Then, a review of the possible failure modes related to zonal hydraulics is presented for construction machinery. This paper provides a broad insight into electrohydraulic systems and their failures, as well as review the current literature available regarding fault studies.
Paper investigates a proposed method for hybridization of construction machinery by zonal hydraulics from failure point of view. Zonal hydraulics are suggested to be realized with pump-controlled actuators, which are distributed throughout the system. Due to both electric and hydraulic components being involved and tough working conditions, electrohydraulic systems tend to be very complex, and where each one of components can fail. This paper reviewed possible failure modes in zonal hydraulics for construction machinery application. Due to complex nature of the EHA, new systemlevel failure modes were pointed out, which were not present in traditional valve-controlled systems.