Abstract

Hydraulic Elevator is an important vertical transport in a modern society

.Because of it has the advantages of engine room setting flexible, requiring a lower

level of the well’s structural strength, smooth operation, large load, and Low failure

rate Etc, it is already applied very common in the low-rise buildings at home or

abroad. Hydraulic Elevator is the products of integration mechanical, electrical, fluid,

it is composed of number of independent each other and mutual cooperation modules,

The research and development for hydraulic elevator related to mechanical, hydraulic

and automatic control etc.

In this paper, after detailed analysis of the hydraulic elevator's actual work

situation, we assumed the elevator’s specific working conditions (Including the

elevator’s maximum load, running speed and so on), and determining the elevator’s

supporting style was straight for the double top, using Synchronization of three-tier

hydraulic cylinder, And designed the hydraulic system of the elevator to meet the

actual conditions. Then according to the working conditions of the elevator and the

given parameters, we calculated the design of various hydraulic components. Finally,

combination the actual situation and a number of specific products, the hydraulic

components’ model and size were determined.

On this basis ， this paper established a mathematical model for elevator

hydraulic system, In the modeling process we used the principle of system topology

to establish the mathematical model, first according the overall-structure of the system

we establish the hydraulic system topology diagram, so the system is divided into

several independent subsystems, and then set up the mathematical model of each

subsystem, Finally, composition the mathematical model for the entire system under

the topology. According to the mathematical model of the system，we conducted a

simulation analysis of the hydraulic system , and we got the system’s speed, pressure