Torsional-Vibration Action Research on the Diesel Engine Crankshaft

2011 ◽  
Vol 199-200 ◽  
pp. 769-772 ◽  
Author(s):  
Xiao Qing Tian ◽  
Shi Ying Liu ◽  
Guo Dong Ding
Keyword(s):  
Diesel Engine ◽  
New Product Development ◽  
Torsional Vibration ◽  
Vibration Amplitude ◽  
3D Model ◽  
New Product ◽  
Engine Design ◽  
Vibration Action ◽  
Set Up ◽  
Engine Crankshaft

Abuse conditions of torsion and vibration occurred on crankshaft should be eliminated or diminished during the engine design process. 3D model of the crankshaft is set up by means of the simplified crankshaft system, using the concentrated quality method. FEA software was used for analyzing the different vibration amplitude orders. Two models with absorber and without absorber were compared and tested. The results of torsional vibration amplitudes-speed and so on are benefit to the new product development for eliminating the potential mechanical harm.

Free Modal Experiment and Analysis of 4105 Diesel Engine Crankshaft Torsional-Bending Coupling Vibration

2013 ◽  
Vol 753-755 ◽  
pp. 1804-1811 ◽  
Author(s):  
Xiao Hua Li ◽  
Bei Shen ◽  
Yi Xi Cai ◽  
Kai Zhang
Keyword(s):  
Diesel Engine ◽  
Free Vibration ◽  
Torsional Vibration ◽  
Bending Vibration ◽  
Coupling Vibration ◽  
Vibration Parameters ◽  
Engine Crankshaft

In order to research the principle of crankshaft horizontal-bending vibration, free modal experiments of 4105 diesel engine crankshaft vibration was designed and done. Vibration parameters of free vibration, torsional vibration, vertical-bending vibration and horizontal-bending vibration were obtained respectively through different measurements points setting and motivation techniques. Through analysis of frequencies and models, a conclusion was drawn:the torsional vibration was just coupling with the horizontal-bending vibration.

Effect of advanced injection angle on diesel engine shaft torsional vibration

2020 ◽  
pp. 146808741989593
Author(s):  
Shiwei Ni ◽  
Yibin Guo ◽  
Wanyou Li ◽  
Donghua Wang ◽  
Zhijun Shuai ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Torsional Vibration ◽  
Simulation Method ◽  
Coupling Model ◽  
Coupling Vibration ◽  
Injection Angle ◽  
Shaft System ◽  
Engine Design ◽  
Medium Speed ◽  
Vibration Model

In this article, a coupling model of shafting torsional vibration with advanced injection angle is proposed to study the effect of advanced injection angle on shaft torsional vibration. Using Simulink, a model shaft system of a 4190ZL_C medium-speed diesel engine is created to study the effect. The proposed coupling model, the traditional simulation method and the test are conducted on the torsional vibration of the 4190ZL_C medium-speed diesel engine, separately. The results show that the spectrum from the coupling vibration model is more abundant than from the traditional vibration model. Hence, considering the effect of advanced injection angle on shaft torsional vibration, the proposed coupling model can improve the modeling accuracy of shaft torsional vibration. It provides a new approach in engine design.

FEM Analysis of Engine Crankshaft Static and Dynamic Behaviour Using ANSYS

2011 ◽  
Vol 121-126 ◽  
pp. 3315-3319
Author(s):  
Ze Min Fu
Keyword(s):  
Fatigue Strength ◽  
Dynamic Behaviour ◽  
Three Dimensional ◽  
Fem Analysis ◽  
Analysis Method ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Engine Design ◽  
Set Up ◽  
Engine Crankshaft

By means of FEM using ANSYS, this paper set up a three–dimensional model by using Pro/E for model S195 diesel engine’s crankshaft corresponding to practical conditions . The distortion and stress of the crankshaft was investigated . The fatigue strength of crankshaft was verified under changing load . The rationality of crank stress analysis method, which is in current widely used, was discussed . The model analysis was made for the crankshaft , and provide the valuable theory basis for engine design optimizing and improving .

Analysis of Helicopter Engine Crankshaft Torsional Vibration Based on ADAMS

2013 ◽  
Vol 401-403 ◽  
pp. 45-48
Author(s):  
Kang Huang ◽  
Kai Lai Wang
Keyword(s):  
Natural Frequency ◽  
Torsional Vibration ◽  
Theoretical Basis ◽  
Vibration Amplitude ◽  
Optimization Design ◽  
Critical Speed ◽  
Virtual Prototyping ◽  
Vibration Modes ◽  
Virtual Prototyping Technology ◽  
Engine Crankshaft

To address the problem of helicopter engine crankshaft fracture in engineer, this paper carried out an analysis of an inline four-cylinder engine torsional vibration, applying virtual prototyping technology based on ADAMS. According to this analysis, draw several orders of crankshaft torsional vibration natural frequency and the main vibration modes. This paper carried out a harmonic analysis of the disturbing torque acting on the crankshaft and torsional vibration amplitude of the free end relative to the flywheel, and obtained Critical speed map of crankshaft torsional vibration. These results can offer theoretical basis for engine optimization design.

Rapid Process Design Technology Research Based on 3D Model

2013 ◽  
Vol 740 ◽  
pp. 391-396
Author(s):  
Li Qin Miao ◽  
Da Shun Zhang ◽  
Ji Chun Jiang ◽  
He Ping Jiang ◽  
Jing Wang ◽  
...  
Keyword(s):  
New Product Development ◽  
Process Design ◽  
3D Model ◽  
New Product ◽  
Technology Research ◽  
Process Knowledge ◽  
Design Technology ◽  
Key Technology ◽  
Knowledge Database ◽  
Rapid Process

The rapid process design technology about box parts based on 3D model was researched in this paper, in order to analyze process feature, it has broken through key technology for obtaining 3D process knowledge from the process knowledge database. The process knowledge sharing and technique process optimization were realized. It shortens the preparation cycle of process of new product development.

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