title: ÐÐ¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ»ÐµÐ´ÑÑÐ¸Ð¹ Ð¿ÑÐ¸Ð²Ð¾Ð´ Ñ Ð¼Ð°ÑÐ¸Ð½Ð½ÑÐ¼ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸ÐµÐ¼
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Hydraulic servo drive with machine control
Creators: name: ÐÐ±Ð´ÑÑÐµÐ², ÐÐ»ÐµÐ³
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÑÐ»ÐµÐ´ÑÑÐ°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
Ð³Ð¸Ð´ÑÐ°Ð²Ð»Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¿ÑÐ¸Ð²Ð¾Ð´
next system
hydraulic drive

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 Ð¢Ð¾ÑÐ½Ð¾ÑÑÑ ÑÐ¸ÑÑÐµÐ¼Ñ.
ÐÐ¿ÑÐµÐ´ÐµÐ»Ð¸Ð¼ Ð´Ð¾Ð±ÑÐ¾ÑÐ½Ð¾ÑÑÑ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¿Ð¾ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ D1 Ð¸ Ð´Ð¾Ð±ÑÐ¾ÑÐ½Ð¾ÑÑÑ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¿Ð¾ ÑÑÐºÐ¾ÑÐµÐ½Ð¸Ñ D2. Ð­ÑÐ¸ Ð²ÐµÐ»Ð¸ÑÐ¸Ð½Ñ Ð¼Ð¾Ð¶Ð½Ð¾ Ð¾Ð¿ÑÐµÐ´ÐµÐ»Ð¸ÑÑ Ð¿Ð¾ ÐÐÐ§Ð¥ ÑÐ°Ð·Ð¾Ð¼ÐºÐ½ÑÑÐ¾Ð³Ð¾ ÐºÐ¾Ð½ÑÑÑÐ° ÑÐºÐ¾ÑÑÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ.

20logD_1=40 D_1=100 1/Ñ;
20logD_2=45 D_2=177,8 1/Ñ.

Ð¢Ð¾Ð³Ð´Ð° Ð¼Ð°ÐºÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð°Ñ Ð¾ÑÐ¸Ð±ÐºÐ° Ð¿Ð¾ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ Î´_ÑÐº^max Ð¸ Ð¿Ð¾ ÑÑÐºÐ¾ÑÐµÐ½Ð¸Ñ Î´_ÑÑÐº^max 
Ð±ÑÐ´ÑÑ ÑÐ°Ð²Ð½Ñ:

Î´_ÑÐº^max=(Î½_Ð³Ð¿^max)/D_1 =0,4/100=0,004 Ð¼ 
Î´_ÑÑÐº^max=(Ï_Ð³Ð¿^max)/D_2 =1,5/177,8=0,008 Ð¼ 

 Ð¢Ð°ÐºÐ¶Ðµ Ð¾Ð¿ÑÐµÐ´ÐµÐ»Ð¸Ð¼ ÑÐ°ÑÑÐ¾ÑÑ ÑÑÐµÐ·Ð° Ï_Ñ^ÑÐº ÑÐ°Ð·Ð¾Ð¼ÐºÐ½ÑÑÐ¾Ð³Ð¾ ÐºÐ¾Ð½ÑÑÑÐ° Ð¸ ÑÐ°ÑÑÐ¾ÑÑ ÑÑÐµÐ·Ð° Ï_Ñ:

Ï_Ñ^ÑÐº=28,1 ÐÑ
Ï_Ñ=4,78 ÐÑ

Ð¡ÑÐ¼Ð¼Ð°ÑÐ½Ð°Ñ Ð¾ÑÐ¸Ð±ÐºÐ° Ð¼ÐµÐ½ÑÑÐµ, ÑÐµÐ¼ Ð¾ÑÐ¸Ð±ÐºÐ°, ÑÐºÐ°Ð·Ð°Ð½Ð½Ð°Ñ Ð² ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð¼ Ð·Ð°Ð´Ð°Ð½Ð¸Ð¸. Ð¢Ð°ÐºÐ¸Ð¼ Ð¾Ð±ÑÐ°Ð·Ð¾Ð¼, ÑÐ¸ÑÑÐµÐ¼Ð° ÑÐ´Ð¾Ð²Ð»ÐµÑÐ²Ð¾ÑÑÐµÑ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸ÑÐ¼ ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ ÑÐ°Ð±Ð¾ÑÐµ Ð² ÑÑÑÐ°Ð½Ð¾Ð²Ð¸Ð²ÑÐµÐ¼ÑÑ ÑÐµÐ¶Ð¸Ð¼Ðµ.
description: Theme of final work is a hydraulic servo drive with machine control.
This project is a study and design of an electro-hydraulic servo system according to the data specified in the terms of reference.
The implementation of this project consisted of several stages:
1. The initial functional and schematic diagram of self-propelled guns is drawn up. Then select the hydraulic motor and pump for the main part of the tracking system.
2. For the control system of the main power unit, the calculation of the hydraulic elements is carried out: the hydraulic motor of the drive for changing the working volume of the main pump, the hydraulic stages of the EHU.
3. Construction of static characteristics of hydraulic drives and their elements (power and control hydraulic drives, hydraulic cascades of EHU).
4. We draw up transfer functions for the elements of the tracking system.
5. We compose and build the LACH and LFCH of the follow-up system (open loop) and the type of corrective links. Implementation of the assembly drawing GU.
6. Construction of the LACH and LFCH closed servo system. Transient calculation.
7. Evaluation of the quality indicators of the transition process and other dynamic parameters of the designed system.
Based on these data, a stable electro-hydraulic follow-up system was designed that satisfies the data presented in the TOR. Next, the general system parameters will be presented:
 Accuracy
The quality factor of system D1 in terms of speed and the quality factor of system D2 for acceleration is determined by the LAH of the open loop of the corrected system:

20logD_1=40 D_1=100 1/s;
20logD_2=45 D_2=177,8 1/s;

Then the maximum error in velocity Î´sk ^ max and in acceleration Î´usk ^ max will be equal to:

Î´_ÑÐº^max=(Î½_Ð³Ð¿^max)/D_1 =0,4/100=0,004 m 
Î´_ÑÑÐº^max=(Ï_Ð³Ð¿^max)/D_2 =1,5/177,8=0,008 m 

 The cutoff frequency Ï_c ^ pk of the open loop and the cutoff frequency Ïc:

Ï_Ñ^ÑÐº=28,1 Hz
Ï_Ñ=4,78 Hz

The total error is less than the error indicated in the technical specifications. Thus, the system meets the accuracy requirements when operating in steady state.