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A dynamic model for automotive diese...

Zhu, Song.

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A dynamic model for automotive diesel engines.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	A dynamic model for automotive diesel engines./
作者:	Zhu, Song.
面頁冊數:	304 p.
附註:	Source: Dissertation Abstracts International, Volume: 52-02, Section: B, page: 1027.
Contained By:	Dissertation Abstracts International52-02B.
標題:	Engineering, Automotive. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9111413

A dynamic model for automotive diesel engines.
Zhu, Song.

A dynamic model for automotive diesel engines. - 304 p.

Source: Dissertation Abstracts International, Volume: 52-02, Section: B, page: 1027.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 1991.

A mathematical model for the compression ignition engine has been developed for the computer simulation of the performance and the dynamic characteristics of powertrains and vehicles.Subjects--Topical Terms:

1018477
Engineering, Automotive.

A dynamic model for automotive diesel engines.
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035 $a (UnM)AAI9111413
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100 1 $a Zhu, Song. $3 1253084
245 1 0 $a A dynamic model for automotive diesel engines.
300 $a 304 p.
500 $a Source: Dissertation Abstracts International, Volume: 52-02, Section: B, page: 1027.
500 $a Supervisor: Norman H. Beachley.
502 $a Thesis (Ph.D.)--The University of Wisconsin - Madison, 1991.
520 $a A mathematical model for the compression ignition engine has been developed for the computer simulation of the performance and the dynamic characteristics of powertrains and vehicles.
520 $a The engine model provides the torque vs. speed relationship for different fuel injection settings. This information allows the determination of the magnitude of transient torque in the powertrain and vehicle performance under various conditions, such as acceleration, hillclimbing and etc. The engine model also provides the high frequency engine torque variations due to the combustion chamber pressure variations and the inertia forces of the reciprocating masses, which are important for vibration, fatigue, and noise considerations.
520 $a The engine model took into consideration the effect of the engine governor on the fuel supply. The engine governor was basically considered to be a first-order system. The combustion chamber pressure was modelled as a function of the crank angle and the operating conditions of the engine using empirical data. Newton's Second Law was used to develop model for the crank-piston mechanism which is the source for both inertia torques and the variable inertias. The effect of variable inertia on the torsional vibration of the engine crankshaft was analyzed. The model for the engine crankshaft consisted of seven inertias, which was used to compute the resonance frequencies of the engine crankshaft.
520 $a Experimental work was required to develop data needed on the computer models such as steady-state torque/speed characteristics for different accelerator positions, and combustion chamber pressures under different operating conditions. The engine model was verified experimentally using a 6.2L diesel engine made by Detroit Diesel (used in the U.S. Army's HMMWV vehicles).
520 $a The engine model compares satisfactorily with experimental data. The step response method was used to compare the transient characteristics of the engine model and those of the engine. The time constant of the engine varies with operating conditions over the range of 0.1 and 0.4 second. The time constants of the engine and the engine model have relatively good agreement. The vibration characteristics of the engine and the engine model were compared in the frequency domain. The engine model can predict accurately the excitation torque and the resonance of the engine.
590 $a School code: 0262.
650 4 $a Engineering, Automotive. $3 1018477
650 4 $a Engineering, Mechanical. $3 783786
690 $a 0540
690 $a 0548
710 2 0 $a The University of Wisconsin - Madison. $3 626640
773 0 $t Dissertation Abstracts International $g 52-02B.
790 $a 0262
790 1 0 $a Beachley, Norman H., $e advisor
791 $a Ph.D.
792 $a 1991
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9111413