CN116933513A - Virtual test method for evaluating performance of piston ring-cylinder sleeve of diesel engine - Google Patents
Virtual test method for evaluating performance of piston ring-cylinder sleeve of diesel engine Download PDFInfo
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- CN116933513A CN116933513A CN202310861642.XA CN202310861642A CN116933513A CN 116933513 A CN116933513 A CN 116933513A CN 202310861642 A CN202310861642 A CN 202310861642A CN 116933513 A CN116933513 A CN 116933513A
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- 238000012360 testing method Methods 0.000 claims abstract description 81
- 238000004088 simulation Methods 0.000 claims abstract description 29
- 238000004458 analytical method Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000005299 abrasion Methods 0.000 claims description 10
- 238000011056 performance test Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000011156 evaluation Methods 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/18—Details relating to CAD techniques using virtual or augmented reality
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The invention belongs to the field of power machinery, and discloses a virtual test method for evaluating performance of a piston ring-cylinder sleeve of a diesel engine, which comprises the following steps: s1, establishing a diesel engine piston ring-cylinder sleeve part test simulation analysis model; s2, performing a friction and wear test on the component to obtain the friction force, wear amount and surface temperature test result data of a piston ring-cylinder sleeve physical test prototype, and calibrating the result of the simulation analysis model in S1; s3, acquiring a parameter set representing the performance of the piston ring and the cylinder sleeve in the piston ring-cylinder sleeve physical prototype test process, embedding the parameter set into the simulation analysis model in the S1, and forming failure criteria of different performances of the piston ring-cylinder sleeve through data processing; s4, performing virtual tests for evaluating different performances of the piston ring-cylinder sleeve. The invention improves the simulation degree and the accuracy of the virtual test, can reduce the dependence of the piston ring-cylinder sleeve test on a physical prototype, saves the test cost and shortens the test period.
Description
Technical Field
The invention belongs to the field of power machinery, and particularly relates to a virtual test method for evaluating performance of a piston ring-cylinder sleeve of a diesel engine.
Background
The piston ring and the cylinder sleeve are one of key friction pairs of the diesel engine, the friction work between the piston ring and the cylinder sleeve accounts for 40% -50% of the total mechanical loss of the diesel engine, and the piston ring or the cylinder sleeve is often in failure due to abrasion in the use process of the diesel engine. With the improvement of the strengthening degree of the engine, for a high-speed high-load diesel engine, the friction power consumption is greatly increased and the service life is reduced due to the friction and wear of the friction pair of the piston ring and the cylinder sleeve, so that higher requirements are put on the friction and wear performance of the piston ring and the cylinder sleeve.
The friction and abrasion behaviors of the piston ring and the cylinder sleeve of the diesel engine are influenced by the structural design, material selection and processing technology of the piston ring and the cylinder sleeve, various working conditions and various accompanying and associated intermediate factors, so that higher requirements are also put forward on the test evaluation of the friction and abrasion performance of the piston ring and the cylinder sleeve.
Because the whole machine bench test equipment has high maintenance cost and long test period, and is not beneficial to developing a great number of component-level piston ring-cylinder sleeve friction and wear assessment tests, the component test is generally adopted to replace the whole machine test, and the whole machine working condition is simulated to carry out the test by using real parts. However, the common component testing machine can only perform component tests aiming at specific working conditions or specific dimensions, and if the dimensions of the components and the test working conditions need to be adjusted, the problems of high cost and long test preparation period are also caused. If a piston ring-cylinder liner sample level performance evaluation virtual test method capable of comprehensively considering the material characteristics of the piston ring and the cylinder liner and the system characteristics of the whole machine is provided, the problems can be effectively solved, and an effective analysis result can be obtained.
Disclosure of Invention
The invention aims to provide a virtual test method for evaluating performance of a piston ring-cylinder sleeve of a diesel engine, which aims to solve the technical problems that a common component testing machine can only perform component tests aiming at specific working conditions or specific sizes, and if the sizes of components and the test working conditions are required to be adjusted, the cost is high and the test preparation period is long.
In order to achieve the above purpose, the specific technical scheme of the virtual test method for evaluating the performance of the piston ring-cylinder liner of the diesel engine is as follows:
a virtual test method for evaluating performance of a piston ring-cylinder sleeve of a diesel engine comprises the following steps:
s1, establishing a diesel engine piston ring-cylinder sleeve part test simulation analysis model;
s2, performing a friction and wear test on the component to obtain the friction force, wear amount and surface temperature test result data of a piston ring-cylinder sleeve physical test prototype, and calibrating the result of the simulation analysis model in S1;
s3, acquiring a parameter set representing the performance of the piston ring and the cylinder sleeve in the piston ring-cylinder sleeve physical prototype test process, embedding the parameter set into the simulation analysis model in the S1, and forming failure criteria of different performances of the piston ring-cylinder sleeve through data processing;
s4, performing virtual tests for evaluating different performances of the piston ring-cylinder sleeve.
In the S1, the simulation analysis model of the diesel engine piston ring-cylinder sleeve part test is completely consistent with the physical test in the tool size, loading function, lubricating function and driving function.
In S2, different working condition combinations are carried out aiming at a piston ring-cylinder sleeve physical test prototype, test data of a friction force and test temperature sensor are obtained, and calibration is carried out with the result of a simulation analysis model, and the simulation analysis model is corrected.
Further, in S3, for a physical test prototype of the piston ring-cylinder liner, a piston ring-cylinder liner abrasion and tensile cylinder performance test is performed, and working condition parameters and sensor parameters corresponding to the piston ring-cylinder liner when each performance test is terminated are recorded, and failure criteria of the piston ring-cylinder liner abrasion and tensile cylinder test are formed through post-processing.
Further, in S4, the piston ring-cylinder liner test includes wear and tensile cylinder performance tests, which can be further extended to piston ring-cylinder liner component tests of different piston ring sizes, cylinder liner sizes, different operating conditions, and different materials.
The virtual test method for evaluating the performance of the piston ring-cylinder sleeve of the diesel engine has the following advantages: the simulation degree and the accuracy of the virtual test are improved through the combined calibration technology with the physical prototype, the dependence of the piston ring-cylinder sleeve test on the physical prototype can be reduced, the test cost is saved, and the test period is shortened; tests can be carried out aiming at different piston rings, cylinder liner materials and sizes and different working conditions, so that the limitation of hardware equipment is broken, and the test capability is effectively expanded; the virtual test method meets the construction and development requirements of a digital development system of the diesel engine, and realizes advanced verification before physical prototype examination.
Drawings
FIG. 1 is a flow chart of a virtual test method for diesel engine piston ring-cylinder liner performance evaluation according to the present invention;
fig. 2 is a schematic structural diagram of a piston ring-cylinder liner part test apparatus.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, a virtual test method for evaluating the performance of a piston ring-cylinder liner of a diesel engine according to the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, the virtual test method for evaluating the performance of the piston ring-cylinder liner of the diesel engine, provided by the invention, comprises the following steps:
step 1: establishing a diesel engine piston ring-cylinder sleeve part test simulation analysis model;
step 2: carrying out a friction and wear test on the component to obtain the friction force, wear amount and surface temperature test result data of a piston ring-cylinder sleeve physical test prototype, and calibrating the results of the simulation analysis model in the step 1;
step 3: acquiring a parameter set representing the performance of a piston ring and a cylinder sleeve in the piston ring-cylinder sleeve physical prototype test process, embedding the parameter set into the simulation analysis model in the step 1, and forming failure criteria of different performances of the piston ring-cylinder sleeve through data processing;
step 4: virtual tests for evaluating different performances of the piston ring-cylinder sleeve are carried out.
In the step 1, the simulation analysis model of the diesel engine piston ring-cylinder sleeve part test is completely consistent with the physical test in the tool size, loading function, lubrication function, driving function and the like, can simulate various working conditions of different loads, different rotating speeds, different temperatures and different lubrication boundary combinations, and can consider the influence of various parameters such as piston rings, cylinder sleeve materials, contact surface states, lubricating oil types and the like.
In the step 2, aiming at a piston ring-cylinder sleeve physical test prototype, different working condition combinations are carried out to obtain sensor test data such as friction force, test temperature and the like, and the sensor test data and the result of the simulation analysis model are calibrated and corrected. And (3) adopting a piston ring-cylinder sleeve physical test prototype and a simulation analysis model to carry out test and simulation analysis under different working condition combinations, comparing and calibrating sensor test data such as friction force, test temperature and the like obtained by the test with the result calculated by the simulation analysis model, correcting the parameters of the simulation analysis model according to the test data, and improving the simulation degree and the accuracy of the simulation model.
In the step 3, aiming at a piston ring-cylinder liner physical test prototype, performance tests such as piston ring-cylinder liner abrasion and cylinder pulling resistance are respectively carried out, working condition parameters and sensor parameters corresponding to the piston ring-cylinder liner when each performance test is ended are recorded, and failure criteria of the tests such as piston ring-cylinder liner abrasion and cylinder pulling resistance are formed through post-treatment. The tensile cylinder acquires parameters such as loading load, test temperature, rotating speed and the like, and the characterization parameters are embedded into a simulation analysis model, so that tests of different piston ring-cylinder sleeve performances can be further carried out.
In the step 4, the piston ring-cylinder sleeve test comprises performance tests such as abrasion, anti-pulling cylinder and the like, and can be further expanded to piston ring-cylinder sleeve component tests of different piston ring sizes, cylinder sleeve sizes, different working conditions and different materials.
Although embodiments of the present invention have been described in conjunction with the accompanying drawings, it will be apparent to those skilled in the art that several variations and modifications may be made without departing from the principles of the invention, which are also considered to be within the scope of the invention.
Claims (5)
1. A virtual test method for evaluating performance of a piston ring-cylinder sleeve of a diesel engine is characterized by comprising the following steps:
s1, establishing a diesel engine piston ring-cylinder sleeve part test simulation analysis model;
s2, performing a friction and wear test on the component to obtain the friction force, wear amount and surface temperature test result data of a piston ring-cylinder sleeve physical test prototype, and calibrating the result of the simulation analysis model in S1;
s3, acquiring a parameter set representing the performance of the piston ring and the cylinder sleeve in the piston ring-cylinder sleeve physical prototype test process, embedding the parameter set into the simulation analysis model in the S1, and forming failure criteria of different performances of the piston ring-cylinder sleeve through data processing;
s4, performing virtual tests for evaluating different performances of the piston ring-cylinder sleeve.
2. The virtual test method for evaluating the performance of the piston ring-cylinder liner of the diesel engine according to claim 1, wherein in S1, the simulation analysis model of the piston ring-cylinder liner part test of the diesel engine is completely consistent with the physical test in the tool size, the loading function, the lubrication function and the driving function.
3. The virtual test method for evaluating the performance of the piston ring-cylinder liner of the diesel engine according to claim 1, wherein in S2, different working condition combinations are performed for a piston ring-cylinder liner physical test prototype to obtain test data of a friction force and a test temperature sensor, and the test data are calibrated with the result of a simulation analysis model and the simulation analysis model is corrected.
4. The virtual test method for evaluating the performance of the piston ring-cylinder liner of the diesel engine according to claim 1, wherein in the step S3, the piston ring-cylinder liner abrasion and tensile cylinder performance tests are respectively carried out aiming at a piston ring-cylinder liner physical test prototype, the working condition parameters and the sensor parameters corresponding to the piston ring-cylinder liner when each performance test is ended are recorded, and the failure criteria of the piston ring-cylinder liner abrasion and the tensile cylinder test are formed through post-treatment.
5. A virtual test method for diesel engine piston ring-cylinder liner performance evaluation according to claim 1, characterized in that in S4, the piston ring-cylinder liner test comprises wear, tensile cylinder performance test, further extendable to piston ring-cylinder liner component tests of different piston ring sizes, cylinder liner sizes, different operating conditions and different materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310861642.XA CN116933513A (en) | 2023-07-14 | 2023-07-14 | Virtual test method for evaluating performance of piston ring-cylinder sleeve of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310861642.XA CN116933513A (en) | 2023-07-14 | 2023-07-14 | Virtual test method for evaluating performance of piston ring-cylinder sleeve of diesel engine |
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| Publication Number | Publication Date |
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| CN116933513A true CN116933513A (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310861642.XA Pending CN116933513A (en) | 2023-07-14 | 2023-07-14 | Virtual test method for evaluating performance of piston ring-cylinder sleeve of diesel engine |
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| Country | Link |
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| CN (1) | CN116933513A (en) |
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2023
- 2023-07-14 CN CN202310861642.XA patent/CN116933513A/en active Pending
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