CN102053039A - Engine body hydraulic fatigue test system - Google Patents
Engine body hydraulic fatigue test system Download PDFInfo
- Publication number
- CN102053039A CN102053039A CN 201010590284 CN201010590284A CN102053039A CN 102053039 A CN102053039 A CN 102053039A CN 201010590284 CN201010590284 CN 201010590284 CN 201010590284 A CN201010590284 A CN 201010590284A CN 102053039 A CN102053039 A CN 102053039A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- engine body
- engine
- test
- test system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009661 fatigue test Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 103
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 239000003921 oil Substances 0.000 claims description 47
- 239000010720 hydraulic oil Substances 0.000 claims description 16
- 238000004088 simulation Methods 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 8
- 238000013500 data storage Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000007405 data analysis Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000011156 evaluation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Testing Of Engines (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to equipment used for an engine test and aims at providing an engine body hydraulic fatigue test system. The system comprises a hydraulic pump station, a hydraulic pulse loading mechanism, a signal measuring and monitoring system and a control system, wherein the hydraulic pulse loading mechanism comprises a hydraulic common-rail module, a hydraulic servo solenoid valve, a hydraulic amplifier and a hydraulic cylinder which are sequentially connected, and the hydraulic cylinder is connected with an engine body to be tested. The engine body hydraulic fatigue test system provided by the invention can be used to substitute the traditional real engine evaluation on engine body fatigue so that test cost is greatly saved, and single cylinder loading and multi-cylinder loading on the engine body are realized. The engine body hydraulic fatigue test system not only can be applied to an engine body fatigue test but also can be applied to an engine parts static loading test, thus realizing the diversification of functions.
Description
Technical Field
The invention relates to equipment for engine tests, in particular to a test system for detecting fatigue characteristics of an engine body by loading hydraulic pressure.
Background
The engine body is a framework of the whole engine, supports and fixes all parts, and has very complex structure and load condition. The structure of the engine body includes a cylinder block, a crankcase, and a support base (or oil pan). It is a complex box-shaped shell structure with many internal partitions, on which the cylinder cover of the engine, crankshaft connecting rod mechanism, all accessories and accessory drive mechanism are mounted, on the basis of said structure various reinforcing ribs are set according to the requirements of strength and rigidity, and the lubrication of various moving parts, cooling of heated part and fixing installation of engine also can be implemented by means of machine body.
The engine block is subjected to very complex loads when the engine is running: the pressure of the gas in each cylinder is uniformly distributed on the bottom surface of the cylinder cover and the surface of the cylinder, the pressure acts on the side pressure of each cylinder wall through the piston, the force applied on each main bearing through the crankshaft, and the support counter force and counter moment of the support on the engine. The magnitude and direction of these forces vary with operating conditions and crankshaft rotation angles, and the points of action of some forces also vary. Further, each of the head bolt and the main bearing bolt receives a force from the fastened portion even when the engine is not running. The above forces and moments make each part subject to alternating tension, compression, bending and twisting, resulting in complex stress state.
With the trend of light weight and high load in the design of the engine at present, the operational reliability of the engine body is receiving more and more attention. The purpose of studying body fatigue properties is to: the normal work of the engine is ensured, and the waste of materials due to the heavy safety of the design is avoided.
There are no two different methods for determining the fatigue characteristics of the body. The method is characterized in that the method is determined by simulation or model experiment or actual machine test of parts, and is determined by calculation, and the two methods are complementary. In practical engineering, the calculation method itself needs to be verified and provided with the boundary conditions of the solution through experiments, and the experiments also often need to obtain more detailed and comprehensive results through calculation and analysis due to the limitation of the precision and the workload of the experiments.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides a hydraulic fatigue test system for an engine body, namely a test system for detecting the fatigue characteristic of the engine body by loading hydraulic pressure.
In order to solve the technical problem, the technical scheme of the invention is as follows:
the hydraulic fatigue test system for the engine body comprises a hydraulic pump station, a hydraulic pulse loading mechanism, a signal measuring and monitoring system and a control system; the hydraulic pulse loading mechanism comprises a hydraulic common rail module, a hydraulic servo electromagnetic valve, a hydraulic amplifier and a hydraulic oil cylinder which are connected in sequence, and the hydraulic oil cylinder is connected with the engine body to be tested; the signal measuring and monitoring system comprises a strain gauge, a strain gauge and a strain module which are sequentially and electrically connected, and a pressure sensor and an AD module which are electrically connected, wherein the strain module and the AD module are both connected to an upper computer through a lower computer; the control system comprises the lower computer and the upper computer, wherein the lower computer is a CRIO controller of the American NI company, and the upper computer is a PC (personal computer) with a built-in data storage analysis system; the lower computer is respectively connected with the hydraulic common rail module, the hydraulic amplifier and the hydraulic servo electromagnetic valve through signal wires.
The hydraulic common rail module is a metal module which is provided with a high-pressure oil path inlet channel and a plurality of outlet channels connected with the hydraulic servo solenoid valve and has a certain inner cavity volume (the inner cavity volume of the metal module is matched with the flow of the whole hydraulic system). The main functions are to stabilize the pressure in the hydraulic circuit, eliminate the pressure fluctuation in the circuit, and complete the communication between the high-pressure oil path and the hydraulic servo solenoid valves.
The invention also comprises a high-pressure accumulator and a low-pressure accumulator; the hydraulic servo electromagnetic valve is a three-position four-way valve, and under different opening and closing states of the valve, an internal channel of the valve and an internal channel of the hydraulic common rail module respectively form a high-pressure oil path and a low-pressure oil path; the high-pressure energy accumulator is communicated with the high-pressure oil way, and the low-pressure energy accumulator is communicated with the low-pressure oil way and can be respectively connected to two ends of the hydraulic common rail module.
The invention also comprises a mechanical table body for bearing the engine body to be tested; the mechanical table body comprises a support, a handle, a clamping arm, a guide rail, a speed reducer, a transmission mechanism and a caster, and can realize horizontal movement and turnover of an engine body.
The invention also comprises a safety and alarm system which comprises at least one alarm detection unit for detecting hydraulic oil leakage, pipeline blockage, oil tank liquid level, oil tank temperature, abnormal loading pressure, fatigue failure of a test specimen or overtime test; the alarm detection unit is connected to the upper computer through the lower computer, and the lower computer is also connected to the master control switch through a signal line.
In the invention, when the test system tests the engine body to be tested, the engine body to be tested is provided with the simulation piston connecting rod, the simulation crankshaft and the main bearing base, and the bolt torque of all bolt connections is the same as the actual engine assembly torque.
In the invention, when the test system tests the engine body to be tested, the hydraulic oil cylinder is positioned on the engine body to be tested and fixed together, and the bolt torque is the same as the actual engine cylinder cover assembling torque.
In the invention, when the test system tests the engine body to be tested, strain gauges are arranged on the simulation piston connecting rod and the main bearing seat of the test cylinder, and the strain gauges are electrically connected with the strain gauge and the strain module in sequence and are connected to an upper computer through a lower computer. In practical application, strain acquisition can be carried out through a strain gauge and a signal acquisition system of the American NI company, and the acquired strain signal is used as a criterion for fatigue failure of a test engine body, namely whether the fatigue failure occurs when the crack is generated in the engine body is judged by monitoring the strain change of the test engine body.
In the invention, a data storage and analysis system is arranged in the upper computer and is compiled by Labview software, and acquired signal data is transmitted to the upper computer by a lower controller (CRIO controller of American NI company) through a signal line for storage and analysis.
In the invention, the hydraulic common rail module is a six-channel hydraulic common rail module, and six hydraulic servo electromagnetic valves are connected with the hydraulic common rail module. The six-way hydraulic servo electromagnetic valve and the corresponding hydraulic amplifier can be controlled to realize single-cylinder loading and multi-cylinder loading (six cylinders can be loaded at most at the same time) of the engine body.
When the test system loads the engine body, different loading frequencies, loading load sizes and loading waveforms (sine waves, triangular waves and rectangular waves) can be set according to the test engine. The fatigue testing device can be used for fatigue testing of an engine body and static load testing of engine parts.
The invention has the beneficial effects that:
the invention can replace the current real machine check work on the machine body fatigue, and greatly saves the test cost.
The invention can realize the loading of single cylinder and multiple cylinders of the engine body. At present, only a single-cylinder loading test is mainly carried out in the aspect of an engine body fatigue test, and then the fatigue characteristics of each cylinder are obtained through calculation, so that the test has great limitation, the load borne by an actual engine body cannot be simulated, and the fatigue strength of each cylinder cannot be compared at the same time. The limitation can be made up by single-cylinder and multi-cylinder loading modes, and the accuracy of the test is improved.
The test system adopts the acquired strain signal as a criterion for testing the fatigue failure of the engine body. At present, in the aspect of engine body fatigue test, a method of enabling a test piece to complete a specified loading cycle, checking cracks after a tester finishes or checking cracks in loading is mainly adopted, and due to the characteristics of crack generation, the time for body fatigue damage and real damage generated by the method has a large error. The test system can reflect the generation of fatigue failure of the test piece in more accurate time by monitoring the strain change of the test piece in real time.
The experimental system can be used for engine body fatigue tests and engine part static load tests, and achieves function diversification.
Drawings
FIG. 1 is a schematic diagram of a test system;
FIG. 2 is a schematic view of a machine body;
FIG. 3 is a schematic view of a hydraulic pulse loading mechanism;
FIG. 4 is a functional block diagram of a control system.
Reference numerals in the drawings:
the system comprises a hydraulic pump station 1, a high-pressure energy accumulator 2, a hydraulic servo electromagnetic valve 3, a common rail module 4, a low-pressure energy accumulator 5, a hydraulic amplifier 6 and a hydraulic cylinder 7; 8 transmission mechanisms, 9 handles, 10 speed reducers, 11 brackets, 12 guide rails, 13 casters and 14 clamping arms; 15 one-way valve, 16 overflow valve, 17 one-way valve, 18 oil filter, 19 oil filter, 20 motor and 21 oil tank.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Overall structure of engine body hydraulic fatigue test system
The test bed consists of two parts, namely a test bed frame and a control system. According to the functional classification, it includes: the device comprises a hydraulic pump station 1, a hydraulic pulse loading mechanism, a mechanical platform body, a signal measuring and monitoring system, a control system, a safety and alarm system, a data storage and analysis system and the like. The test system is shown in FIG. 1.
Second, introduction of each part of the test system
1. Hydraulic pump station
As shown in fig. 3, the hydraulic pump station 1 is mainly used for providing hydraulic power to the system and providing hydraulic oil with a certain pressure and a certain flow rate to the hydraulic loading mechanism. The hydraulic pump station of the test system is a detachable constant-pressure variable pump formed by a pressure-flow composite control plunger pump, and under the driving of a motor 20, the hydraulic pump station 1 sucks oil from an oil tank 21 to provide pressure oil for a common rail valve group.
2. Hydraulic pulse loading mechanism
As shown in fig. 1 and 3, the hydraulic pulse loading mechanism mainly comprises a common rail module 4, a six-way hydraulic servo electromagnetic valve 3, a hydraulic amplifier 6, a hydraulic oil cylinder 7, a high-pressure accumulator 2 and a low-pressure accumulator 5.
The common rail module 4, the high-pressure energy accumulator 2 and the low-pressure energy accumulator 5 form a pressure stabilizing system, and a certain loading pressure is kept, wherein the high-pressure energy accumulator 2 is positioned on a high-pressure oil way, and the low-pressure energy accumulator 5 is positioned on a low-pressure oil way; the hydraulic servo electromagnetic valve is a three-position four-way valve, wherein P is a high-pressure oil way, T is an oil return oil way, A is a loading oil way, and an X way is closed; the hydraulic amplifier is used for amplifying hydraulic pressure to provide larger loading load; the hydraulic cylinder performs loading on the engine body.
The specific implementation process comprises the following steps: the hydraulic pump station 1 is driven by the motor 20 to suck oil from the oil tank 21 to generate high-pressure oil, and the high-pressure oil enters a high-pressure oil path through the oil filter 19 and the check valve 15 (when the pressure of the high-pressure oil exceeds the set pressure of the overflow valve 16 at the moment, the overflow valve 16 is opened, and the high-pressure oil flows back to the oil tank 21 through the oil filter 18); the high-pressure accumulator 2 is connected with the high-pressure oil way to stabilize the pressure in the high-pressure oil way; when hydraulic servo electromagnetic valves (the electromagnetic valves omitted in the figure are the same as other electromagnetic valves) in the specified six paths are loaded, the electromagnetic valves are communicated with the paths P and A, the hydraulic pressure is amplified by a hydraulic amplifier 6 and loaded to an engine body by a hydraulic cylinder 7; after loading is finished, T is communicated with A, and the hydraulic cylinder returns oil to the low-pressure oil way; the low-pressure oil flows back to the tank 21 through the check valve 17 and the oil filter.
The control of loading frequency, loading load and loading waveform in the loading process can be realized by controlling the pressure of the hydraulic servo electromagnetic valve and the hydraulic oil circuit.
3. Mechanical table body
As shown in fig. 2, the machine table body comprises a bracket 11, a handle 9, a clamping arm 14, a guide rail 12, a speed reducer 10, a transmission mechanism 8 and a caster 13. The clamping arms 14 can move along the guide rail 12, are adjusted according to the size of the test piece, and are connected with the test piece through bolts after the test piece is clamped, and each clamping arm is provided with three connecting bolts. The whole table body is provided with four casters, the casters 13 can move horizontally, and the test piece can be turned over by rotating the handle 9.
In the test preparation process, the clamping arm 14 is used for clamping the test piece, and then the test piece is turned over through the movable table body to complete the assembly with other test equipment; during the test, the engine body test piece is rotated to a normal horizontal position, and a hydraulic oil cylinder is installed on the engine body test piece.
4. Signal measuring and monitoring system
The signal measurement and monitoring of the test system mainly comprises the measurement and monitoring of strain signals and the measurement and monitoring of pressure signals. The strain signal is completed through a strain gauge, a 9237 strain module of the NI company in America, a lower computer (CRIO controller) and an upper computer (PC). The pressure signal is completed by a pressure sensor, a 9201AD module of the NI company in America, a host computer (CRIO controller) and an upper computer (PC). The collected signals are sequentially connected with the upper computer and the lower control computer through signal wires.
The strain signal monitoring is mainly used for judging the fatigue failure of the machine body test piece, and when the strain change continuously exceeds a preset range, the system can judge that the machine body test piece is subjected to the fatigue failure. The pressure signal is monitored for the purpose of carrying out feedback control on the load and alarming and stopping when abnormality occurs.
5. Control system
The functional block diagram of the control system of the hydraulic fatigue test bed is shown in fig. 4, the system adopts an upper computer and a lower computer, the upper computer is a PC, the lower controller adopts an embedded controller CRIO9004 of the American NI company, the lower controller comprises a real-time controller and a Field Programmable Gate Array (FPGA) chip reconfigurable by three million doors, and the lower controller comprises 8 hot-plug industrial I/O slots, so that the measurement of signals such as strain, pressure and the like and the control output of a servo valve can be easily realized.
In the test process, the lower computer communicates signals such as strain, pressure and the like in the control process to the upper computer for display, storage and analysis; the upper computer communicates control parameters (including an FPGA program) to the lower computer, and the hydraulic loading system and the safety alarm system are controlled by the lower computer. The whole control program is completed based on a LabVIEW development platform of an NI company, and has higher reliability and accuracy.
6. Safety and alarm system
In order to ensure the safe operation of the test, the test system is provided with a multiple alarm device. Mainly comprises the following steps: hydraulic oil leakage, pipeline blockage, oil tank liquid level, oil tank temperature, loading pressure, fatigue failure of test piece and test overtime. When abnormality occurs, the alarm system gives a fault alarm, automatically cuts off the power supply of the test system, stops all actions of the whole system and displays the fault types on the PC.
7. Data storage analysis system
All measurement results in the test, including the final test result, are stored in the position designated by the upper computer. The management of data in the upper computer software is carried out in the database, so that the operation is convenient, and the safety of the data is also ensured. The data operation generates two files, one is test information, and the other is test data.
The test information comprises test related information such as a test number, test date, test piece parameters, testers, test sites and the like; the test data mainly comprises strain signals, pressure signals, cycle times, fatigue states and the like.
The analysis of the test data mainly comprises the judgment of fatigue damage and the judgment of pressure state during monitoring in the test process, and the post analysis of the data after the test is finished, so as to obtain the fatigue characteristic related parameters of the test specimen.
Thirdly, the method comprises the following steps: test System implementation
1. Preparation of the test
Firstly, a hydraulic system is prepared and debugged, wherein the hydraulic system comprises a hydraulic pump station 1 and a hydraulic pulse loading mechanism. The normal operation of pipelines, the normal pressure and temperature of hydraulic oil, the normal liquid level of an oil tank, the normal working index of an energy accumulator, the normal state of each electromagnetic valve and the normal state of an electric control system are ensured.
Secondly, the installation of the test piece.
1) Fixing the machine body on the bracket 11;
2) pasting a strain gauge on a main bearing seat of a test cylinder;
3) sticking a strain gauge on the simulation piston connecting rod for the test;
4) assembling the simulation piston connecting rod and the simulation crankshaft, and loading the assembly into a test cylinder;
5) installing a main bearing base on a machine body, wherein the bolt torque is the same as the assembly torque of an engine;
6) the handle is shaken to adjust the machine body to a vertical position;
7) mounting a support base;
8) mounting a hydraulic pressurizing oil cylinder on the engine body to ensure that the bottom surface of the hydraulic oil cylinder is reliably contacted with the top surface of the simulation piston, fixing the hydraulic oil cylinder and the engine body together through a bolt, wherein the bolt torque is the same as the mounting torque of an engine cylinder cover;
9) installing an in-cylinder pressure sensor;
10) connecting the common rail module with a hydraulic oil cylinder high-pressure oil pipe;
11) the test piece strain acquisition and pressure acquisition connecting line is connected to an acquisition module in the control cabinet, so that the connecting line is ensured to be correct.
And finally, completing software installation of the upper computer, and self-checking the whole control system to be normal.
2. Procedure of the test
After the preparation process is completed, the test process is performed.
Firstly, setting test parameters including test number, test date, tester, test site, test unit, safety coefficient, dynamic coefficient, hydraulic amplifier load amplification factor and other test related information; also included are test engine related information such as: model, cylinder diameter, oil supply mode, stroke, calibration power, calibration rotating speed, compression ratio, cylinder number, valve number, maximum torque and the like.
Secondly, after the setting is finished, the system carries out self-checking to judge whether the system is normal or not.
Finally, all parts of the test system start to work, and the engine body fatigue test is carried out. In the test process, the monitoring information of each part is displayed on the monitoring interface of the upper computer, and the test is continuously carried out until the system fails, the judgment of the fatigue failure of the machine body is successful, the specified test cycle is finished or the system is manually closed. And (5) storing the test data to finish the test.
The foregoing disclosure discloses only specific embodiments of the invention. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (9)
1. A hydraulic fatigue test system for an engine body comprises a hydraulic pump station, and is characterized by further comprising a hydraulic pulse loading mechanism, a signal measuring and monitoring system and a control system; wherein,
the hydraulic pulse loading mechanism comprises a hydraulic common rail module, a hydraulic servo electromagnetic valve, a hydraulic amplifier and a hydraulic oil cylinder which are connected in sequence, and the hydraulic oil cylinder is connected with the engine body to be tested;
the signal measuring and monitoring system comprises a strain gauge, a strain gauge and a strain module which are sequentially and electrically connected, and a pressure sensor and an AD module which are electrically connected, wherein the strain module and the AD module are both connected to an upper computer through a lower computer;
the control system comprises the lower computer and the upper computer, wherein the lower computer is a CRIO controller, and the upper computer is a PC (personal computer) with a built-in data storage analysis system; the lower computer is respectively connected with the hydraulic common rail module, the hydraulic amplifier and the hydraulic servo electromagnetic valve through signal wires.
2. The engine block hydraulic fatigue test system of claim 1, further comprising a high pressure accumulator and a low pressure accumulator; the hydraulic servo electromagnetic valve is a three-position four-way valve, and under different opening and closing states of the valve, an internal channel of the valve and an internal channel of the hydraulic common rail module respectively form a high-pressure oil path and a low-pressure oil path; the high-pressure energy accumulator is communicated with the high-pressure oil way, and the low-pressure energy accumulator is communicated with the low-pressure oil way.
3. The engine block hydraulic fatigue testing system of claim 1, further comprising a mechanical stage; the mechanical table body comprises a support, a handle, a clamping arm, a guide rail, a speed reducer, a transmission mechanism and a caster.
4. The hydraulic fatigue test system for the engine body according to claim 1, further comprising a safety and alarm system, including at least one alarm detection unit for detecting hydraulic oil leakage, pipeline blockage, tank level, tank temperature, abnormal loading pressure, fatigue failure of a test specimen or test timeout; the alarm detection unit is connected to the upper computer through the lower computer, and the lower computer is also connected to the master control switch through a signal line.
5. The hydraulic fatigue test system for the engine body as claimed in claim 1, wherein when the test system tests the engine body to be tested, the simulated piston connecting rod, the simulated crankshaft and the main bearing base are arranged on the engine body to be tested, and bolt torque of all bolt connections is the same as actual engine assembly torque.
6. The engine block hydraulic fatigue test system of claim 1, wherein when the test system tests the engine block to be tested, the hydraulic cylinder is located on the engine block to be tested and fixed together, and the bolt torque is the same as the actual engine cylinder head assembly torque.
7. The engine body hydraulic fatigue test system according to claim 1, wherein when the test system tests the engine body to be tested, strain gauges are mounted on the simulation piston connecting rod and the main bearing seat of the test cylinder, and the strain gauges are electrically connected with the strain gauge and the strain module in sequence and are connected to the upper computer through the lower computer.
8. The engine block hydraulic fatigue test system of claim 1, wherein a data storage and analysis system is built into the upper computer.
9. The engine block hydraulic fatigue test system of claim 1, wherein the hydraulic common rail module is a six-channel hydraulic common rail module, and six hydraulic servo solenoid valves are connected thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105902846A CN102053039B (en) | 2010-12-07 | 2010-12-07 | Engine body hydraulic fatigue test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105902846A CN102053039B (en) | 2010-12-07 | 2010-12-07 | Engine body hydraulic fatigue test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102053039A true CN102053039A (en) | 2011-05-11 |
| CN102053039B CN102053039B (en) | 2012-08-22 |
Family
ID=43957588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105902846A Expired - Fee Related CN102053039B (en) | 2010-12-07 | 2010-12-07 | Engine body hydraulic fatigue test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102053039B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393340A (en) * | 2011-09-01 | 2012-03-28 | 浙江大学 | Hydraulic fatigue test system of connecting rod |
| CN103939421A (en) * | 2014-03-10 | 2014-07-23 | 北京工业大学 | Fatigue test method and device used for hydraulic cylinder |
| CN105004528A (en) * | 2015-05-06 | 2015-10-28 | 潍柴动力股份有限公司 | Internal combustion engine body fatigue simulation loading device |
| CN106325320A (en) * | 2015-07-06 | 2017-01-11 | 格力电器（芜湖）有限公司 | Hydraulic pulse test bed |
| CN106680120A (en) * | 2017-01-10 | 2017-05-17 | 浙江理工大学 | High-frequency electro-hydraulic servo fatigue testing machine |
| CN107856890A (en) * | 2017-09-29 | 2018-03-30 | 长光卫星技术有限公司 | A kind of de- slotting monitoring device of portable satellite based on cRIO frameworks |
| CN107884186A (en) * | 2017-12-12 | 2018-04-06 | 上海交运汽车动力系统有限公司 | A kind of clutch assembly fatigue test system and method |
| CN109211498A (en) * | 2018-09-18 | 2019-01-15 | 中国标准化研究院 | Strength detection equipment and method |
| CN111735633A (en) * | 2020-06-10 | 2020-10-02 | 中国航发北京航科发动机控制系统科技有限公司 | Pressure load loading and strain online test system for fuel oil electric control regulator |
| CN112881216A (en) * | 2021-02-09 | 2021-06-01 | 马丽娟 | Pressure vessel pulse fatigue equipment testing device |
| CN113567133A (en) * | 2020-04-28 | 2021-10-29 | 中国航发商用航空发动机有限责任公司 | Low-cycle fatigue test device and method for casing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6453750B1 (en) * | 1998-12-23 | 2002-09-24 | Anthony Maddison | Stress testing apparatus |
| CN201575956U (en) * | 2009-09-25 | 2010-09-08 | 中国第一汽车集团公司 | Fatigue testing machine of engine cylinder body |
| CN201876393U (en) * | 2010-12-07 | 2011-06-22 | 浙江大学 | Hydraulic fatigue test system for engine body |
-
2010
- 2010-12-07 CN CN2010105902846A patent/CN102053039B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6453750B1 (en) * | 1998-12-23 | 2002-09-24 | Anthony Maddison | Stress testing apparatus |
| CN201575956U (en) * | 2009-09-25 | 2010-09-08 | 中国第一汽车集团公司 | Fatigue testing machine of engine cylinder body |
| CN201876393U (en) * | 2010-12-07 | 2011-06-22 | 浙江大学 | Hydraulic fatigue test system for engine body |
Non-Patent Citations (1)
| Title |
|---|
| 《内燃机》 20090831 刘耀东等 发动机活塞液压脉冲机械疲劳试验方法研究 , 第4期 2 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393340A (en) * | 2011-09-01 | 2012-03-28 | 浙江大学 | Hydraulic fatigue test system of connecting rod |
| CN103939421A (en) * | 2014-03-10 | 2014-07-23 | 北京工业大学 | Fatigue test method and device used for hydraulic cylinder |
| CN103939421B (en) * | 2014-03-10 | 2016-05-18 | 北京工业大学 | A kind of method for testing fatigue for hydraulic cylinder and device |
| CN105004528A (en) * | 2015-05-06 | 2015-10-28 | 潍柴动力股份有限公司 | Internal combustion engine body fatigue simulation loading device |
| CN106325320A (en) * | 2015-07-06 | 2017-01-11 | 格力电器（芜湖）有限公司 | Hydraulic pulse test bed |
| CN106680120A (en) * | 2017-01-10 | 2017-05-17 | 浙江理工大学 | High-frequency electro-hydraulic servo fatigue testing machine |
| CN107856890A (en) * | 2017-09-29 | 2018-03-30 | 长光卫星技术有限公司 | A kind of de- slotting monitoring device of portable satellite based on cRIO frameworks |
| CN107884186A (en) * | 2017-12-12 | 2018-04-06 | 上海交运汽车动力系统有限公司 | A kind of clutch assembly fatigue test system and method |
| CN107884186B (en) * | 2017-12-12 | 2023-12-05 | 上海交运汽车动力系统有限公司 | Clutch assembly fatigue test system and method |
| CN109211498A (en) * | 2018-09-18 | 2019-01-15 | 中国标准化研究院 | Strength detection equipment and method |
| CN109211498B (en) * | 2018-09-18 | 2020-12-01 | 中国标准化研究院 | Intensity detection device and method |
| CN113567133A (en) * | 2020-04-28 | 2021-10-29 | 中国航发商用航空发动机有限责任公司 | Low-cycle fatigue test device and method for casing |
| CN113567133B (en) * | 2020-04-28 | 2024-04-12 | 中国航发商用航空发动机有限责任公司 | Device and method for testing low cycle fatigue of casing |
| CN111735633A (en) * | 2020-06-10 | 2020-10-02 | 中国航发北京航科发动机控制系统科技有限公司 | Pressure load loading and strain online test system for fuel oil electric control regulator |
| CN112881216A (en) * | 2021-02-09 | 2021-06-01 | 马丽娟 | Pressure vessel pulse fatigue equipment testing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102053039B (en) | 2012-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102053039B (en) | Engine body hydraulic fatigue test system | |
| CN201876393U (en) | Hydraulic fatigue test system for engine body | |
| CN102393340A (en) | Hydraulic fatigue test system of connecting rod | |
| CN108982262A (en) | A kind of rubber material multichannel fatigue experimental device and method | |
| CN201133859Y (en) | 2MN microcomputer controlled electrohydraulic servo-force standard machine | |
| CN203404164U (en) | Test equipment for testing durability of sealing element of hydraulic cylinder | |
| CN105697353A (en) | Comprehensive testing device for fault simulation and state detection for hydraulic pump under variable working condition | |
| CN102466586B (en) | Fatigue loading device for reinforced concrete duration test | |
| KR20110085610A (en) | Greater oil pressure cylinder test system | |
| CN104006034A (en) | Hydraulic servo variable-load loading test bench | |
| CN104990671A (en) | Device for researching sealing performance of flanges in vibration environment | |
| CN104675804A (en) | Comprehensive hydraulic cylinder performance testing system | |
| CN115127943A (en) | Multifunctional testing platform and testing method for wind turbine blade | |
| CN106644329B (en) | 120MN bridge support testing machine for high-precision dynamic measurement | |
| CN205562296U (en) | Loading device of test beam under long -term loading | |
| CN1299104C (en) | Automatic pressure measuring device and method | |
| CN202229995U (en) | Hydraulic connection rod fatigue test system | |
| CN2898802Y (en) | Checker of pressure-releasing valve | |
| CN202033256U (en) | Car shock absorber load testing machine | |
| CN205861113U (en) | The intelligent liquefied petroleum gas steel cylinder water pressure test quickly detects line | |
| CN109556875B (en) | Testing platform for marine low-speed diesel engine cylinder oiling system | |
| CN203587454U (en) | Vertical multi-cylinder loading testing machine | |
| CN102998188A (en) | Lever-type semi-automatic valve rotation bending tester | |
| CN112629789B (en) | Fuel tank vibration durability test device and method | |
| CN203595603U (en) | Multifunctional test loading detection machine of horizontal sleeve compensator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20201207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |