| 1. | What if my engine starts to whine
要是我的发动机拉缸了怎么办？ |
| 2. | Mechanism analysis and betterment measure on scuffing of hydraulic pressure equipment
液压升降装置拉缸机理分析和改进措施 |
| 3. | With this type of skirt excellent matches between skirt and liner can he achieved and piston scraping eliminated
该型活塞裙部与气缸套贴合良好，无拉缸擦伤现象。 |
| 4. | Then the cylinder scoring malfunction of internal combustion engine is introduced briefly . it refers to the main content of this thesis , and the researching significance and purpose are indicated
然后简要介绍了内燃机的拉缸故障，提出了本文研究的主要内容，并指出了研究的目的及意义。 |
| 5. | This achievement creatively improves the traditional research on the problem of cylinder scoring which is conducted mainly by experiment and experience to a new step of numerical simulation
这一研究成果使传统上以实验研究和运转经验为主的拉缸问题研究提高到了一个数值仿真的层次，具有首创性。 |
| 6. | Two models of friction are proposed , the simulation results show together : kurtosisness of torsional vibration will decrease , low harmonic and main harmonic of torsional vibration will increase when cylinder scoring
创造性地利用了扭振信号诊断柴油机拉缸故障。拉缸时，由于摩擦阻力的增大，发动机喷油量达到最大。 |
| 7. | And the case analysis on 6240 type diesel engine suggested that not only the phase angle of 0 . 5 order torsional vibration can be used to diagnose the cylinder - scoring number , but also the amplitude can reflect the fault degree
对6240柴油机的实例分析表明，不仅可以利用0 . 5谐次扭振相位角准确判断出内燃机拉缸缸号，还可利用其幅值反映拉缸故障程度。 |
| 8. | 6 . no parts and components or complete power unit warranty will be delivered if the cylinder cover and body are distorted and damaged or cylinder liner , piston and piston ring are damaged by piston scraping , or the complete power unit is damaged resulting from lack of water
因缺水，导致气缸盖机体变形损坏或导致拉缸损坏缸套活塞活塞环等，或导致整机毁坏的，所有相关零部件或整机不予保修。 |
| 9. | Also a special diagnosis system for the cylinder scoring malfunction of internal combustion engine has been briefly set up . it realizes the numerical simulation of bi - dimensioned and tri - dimensioned cycling instantaneous temperature field for the diesel engine type 4135 and the simulation animated demonstration of the thermal deformation and cylinder scoring malfunction
并且还初步建立了内燃机拉缸故障诊断分析型专系系统，实现了4135柴油机二维、三维循环瞬态温度场的数值仿真、热变形和拉缸故障的模拟动画演示。 |
| 10. | According to the relational expression of torsional vibration of the measuring point on crankshaft and the excited moment of each cylinder of internal combustion engine ( ice ) , the working condition of each cylinder was monitored and the fault of cylinder - scoring was diagnosed using the amplitude and phase characteristic of 0 . 5 order torsional vibration
摘要依据内燃机轴系测点扭振与各缸激振力矩的关系式，利用0 . 5谐次扭振的幅值与相位特性，进行内燃机各缸作功状态监测和拉缸故障诊断。 |
