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GENERAL PROBLEMS OF ENGINE BUILDING
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UDC 621.43.001.24 : 531.391 : 539.4
Istîmin P.A., Grigîriev E.A.
Development and perspectives of calculation investigations of engine dynamics and strength
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 5–10.
Key words:
engines.
Techniques of calculations of engine parts dynamics and strength are described in their development. Some their problems are considered. The attention is drawn to the intensification of the national economy, joining up of associated research institutes efforts, production unions and colleges in creation of SARP-RIC engines, and also to improvement of the student training to meet the modern demands of scientific and engineering personnel.
- table, - ill., 16 ref.
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Contents
1985
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DYNAMICS AND VIBRATION OF THE ENGINE
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UDC 621.436-242.001.5:531.391
Mirînîv G.N.
Dynamics of a barrel-shape piston
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 10–12.
Key words:
engines.
Summarized parameters are considered of a dynamic interaction of the cylinder-piston group details. The engine 8ChN15/16 was taken as an example to define friction on the details conjugation surface and values of the impact impulse. Variation of dynamic parameters during the cycle is shown.
- table, 5 ill., - ref.
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UDC 621.43-242.001.57 : (531.1 + 531.3)
Grigoriev E.A., Allabergenov M.D.
Theoretical investigation of an oscillation piston-cylinder system
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 13–16.
Key words:
engines.
A calculation circuit and mathematical model are given of an oscillation piston-cylinder system. Calculation is made of influence of different high speed and load conditions, taking the engine 4Ch10.5/l2 as an example, and also misalignement of the piston pin orifice on mean square oscillation cylinder speed, variation of the impact piston impulse at the piston slap and friction power in the conjugation ring-groove.
1 table, 5 ill., 8 ref.
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UDC 621.436-242.001.5 : 531.18
Rók G.M.
Features of the piston lateral movement under different operating engine conditions
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 17–19.
Key words:
engines.
Experimental investigation is described of the influence of conditions and constructive parameters on features of the lateral piston movement in the cylinder.
- table, 4 ill., 9 ref.
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UDC 621.43-384.45.001.24 : 531.1
Korchemny L.V., Kîmarîva N.I.
Features of calculation of kinematics of a lever-cam valve timing gear for automobile engines
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 20–22.
Key words:
engines.
Influence is considered of a pitch and accuracy of a task for the cam profile coordinate to achieve accurate results of the kinematics calculation of a lever-cam valve timing gear for automobile engines. Features are shown of the evaluation of the lubrication conditions for this mechanism cam pair.
2 table, 4 ill., 7 ref.
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UDC 621.43-233.13.001.24 : 534.1
Kempner M.L., Nesterîva S.V.
Use of a theory of regular systems for investigations of the crankshaft dynamics
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 23–24.
Key words:
diesel.
An engine crankshaft is considered as a sub-system, included into the total shaft line system, consisting of regular elements, its dynamic characteristics can be expressed through a dynamic characteristic of each element. A calculation example is offered of a marine shaft line with an engine 8DP30/50, the calculation frequencies are compared with experimental ones.
- table, 2 ill., 5 ref.
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UDC 621.43-752.001.57 : 629.113.5
Minkin L.M., Kîrñhåmnó L.V., Zlenko M.A.
Mathematical modelling of the engine vibration at the cylinders cut-off
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 25–27.
Key words:
diesel.
A calculation technique is described of an automobile engine vibration, the power output is controlled by the cylinder cut-off. Vibration levels of a 4-cylinder gasoline engine are defined, using three methods of cutting-off of cylinders. It is established that the low vibration (comparing with the vibration at all cylinders operating) can be attained when inlets of dead cylinders are communicated with the atmosphere.
- table, 4 ill., 4 ref.
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Contents
1985
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STRENGTH OF ENGINE STRUCTURES
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UDC 621.43-224.001.24 : 539.319
Isajev E.V., Milstein L.G.
Calculation analysis of a thermal stress-deformed condition of a cylinder block head bottom, considering constructive factor effect
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 28–31.
Key words:
engines.
Technique and calculation results are described of thermal displacement and stresses in a tractor engine cylinder head bottom.
2 table, 3 ill., 6 ref.
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UDC 621.436-233.13.001.2
Freidin S.G.
Investigation of crankshaft optimum constructive parameters, considering its load influence
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 32–33.
Key words:
Engines.
Dependences are analyzed of optimum relative radii of the crankpin and crank journal fillet camber on basic constructive parameters and crankshaft load.
- table, 3 ill., 5 ref.
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UDC 621.436-233.13.001.5 : 539.319
Galian V.G., Zajînchkovski V.N.
Combined governor for heavy dump trucks Belaz
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 34–36.
Key words:
engines.
Investigation results are given of amount and character of the dynamic stress distribution in crankshafts of locomotive diesel-generators 10D100 and 3D70 influenced by gas and inertia forces, and failure of the main support coaxiality.
- table, 2 ill., - ref.
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UDC 621.43-2.001.24
Îrlîv V.Â., Piraner I.L.
Some measures to improve effectiveness of the finite element method application, when calculating engine details
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 37–40.
Key words:
engines.
Some measures are offered to improve effectiveness of the calculation programme (using computer) of a three-dimensional temperature field average output, displacement deformation, stress, and also a three-dimensional field of the liquid flow speed in engine cooling spaces, having the geometric symmetry at non-symmetrical boundary conditions.
1 table, 2 ill., 7 ref.
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UDC 621.436-19-232.174.001.5
Gîts A.N., Nekrasîv S.I.
Selection of a bolt head construction, providing a reliable self-plug of responsible threaded joints of tractor and combine diesel engines
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 41–45.
Key words:
engines.
Investigation results are given of tests of reliable self-plug of a lock pin for main bearing covers and connecting rod bolts for diesel engines 4Ch13/14 and 6Ch13/14. It is shown that the head pliability and bearing surface shape variation do influence the effective self-plug against the bolt unscrewing.
4 table, 5 ill., 4 ref.
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UDC 621.431.74.001.45«401.7»«313»
Gavriliuk I.I., Âóstrîv A.I., Liannîi V.B., Alexandrîv A.M.
Prediction of marine diesel engine life on results of speedy tests
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 45–50.
Key words:
engines.
Possibilities are considered of a prediction of marine diesel engine life, using definition of the main detail wear rate in the cylinder-piston group, and collection of multicycle, low-cycle, non-isothermal and quasistatic failures. Dependences are offered for evaluation of the above failure degree, due to I he engine operating conditions.
2 table, 2 ill., 8 ref.
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UDC 621.43-242.001.5 : 621.43.016.4 : 53.082.6
Schegolev V.A., Gavrushkî V.V., Zavîdîv N.N., Sapnzhnikov A.A.
Arrangement for investigation of the engine piston thermal stress, using the infrared radiation
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 50–51.
Key words:
engines.
An arrangement Ê described for investigation of the engine piston thermal stress. The thermal stress is studied, using a contact less method of the infrared radiation on a piston lateral surface. This arrangement has a high sensitivity and response, providing a clear registration of a thermal radiation at about 30 points under any engine operating conditions.
- table, 2 ill., - ref.
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Contents
1985
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INDIVIDUAL ISSUES
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UDC 621.43-233.13.001.24 : 621.822 : 539.4.12.1.001.57
Lîparev V.K., Kanashkin V.F., Âarlam D.M.
Calculation and experimental analysis of loads on main diesel engine bearings
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 52–53.
Key words:
engines.
A calculation method is considered for crankshafts, taking account of non-axiality of main supports, it was developed, using the method of finite elements. Results are given of a tensometering of dynamic loads on main supports of the marine diesel engine 6ChRN27.5/36. Graphical dependences are built of loads on diesel engine main supports on the crankshaft angle, using results of calculation and experimental investigations. Calculation and experimental data attained are analyzed.
- table, 4 ill., 5 ref.
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UDC 621.436-232.001.5 : 621.822.5.004.14
Rîdiînîv V.A., Dzuban A.M.
Evaluation of operation of crankpin bearings of the experimental diesel engine 4Ch7.6/8
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 54–56.
Key words:
engines.
Diesel engine tests are considered, which discovered the low operation capacity of crankpin bearings. In order to learn the cause a technique was developed of the experimental definition of heat release in bearings. Investigation results are shown, where the friction power in crankpin bearings is essentially higher than the power, developed under liquid friction conditions of the bearing operation, which shows the clear boundary friction. And the conclusion was made that the friction intensity is necessary to decrease to improve the bearing working capacity.
- table, 3 ill., 3 ref.
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UDC 621.43-233.2.001.24
Kliàñhkin N.L., Ulianovski P.I.
Calculation of main bearing caps of the engine crankshaft
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 56–60.
Key words:
engines.
A method is used for an analysis of a thermal-deformation condition of a main bearing cap at its pin tightening. It consists of a closed system, having two symmetrical threaded joints, connected by a flat beam of a big curvature. Results of the analysis have the practical interest for both investigations of engines with autonomous covers and constructions with covers joining in the general part the crankshaft crankcase.
- table, 3 ill., 6 ref.
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UDC 621.436-233.13 : 621.822.5 : 621.753.2.001.24
Âykîv V.G., Saltykov M.A.
Clarified technique of the calculation of the thin walled bearing shell fit for engine crankshaft bearings
// Dvigatelestroyeniye. — 1985. — ¹ 10. — P. 60–62.
Key words:
engines.
A clarified technique of M.A. Saltykov is considered on calculation of parameters of the crankshaft thin walled bearing shellfit. On the base of the statistic data summary and as a reference parameter a minimum necessary contact pressure is included of a predetermined tightness margin, on surfaces of the shell and bed conjugation. Thus an additional tightness portion is defined, providing the shell fit within optimum limits on density and level of coming stresses.
- table, - ill., 4 ref.
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Contents
1985
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