Strength Analysis of Diesel Engine Crankshaft Based on Flexible Multi-Body Dynamics

2014 ◽  
Vol 654 ◽  
pp. 65-68
Author(s):  
Ling Jin Wang ◽  
Dan Li ◽  
Xiu Xia Lu ◽  
Pei Fan Li ◽  
Ying Jun Jia
Keyword(s):  
Diesel Engine ◽  
High Cycle Fatigue ◽  
Dynamics Simulation ◽  
Strength Analysis ◽  
Cycle Fatigue ◽  
Safety Factors ◽  
Body Dynamics ◽  
Dynamics Calculation ◽  
Multi Body ◽  
Engine Crankshaft

Crankshaft is one of the key parts of the diesel engine. Several causes would be lead to the failure of the crankshaft. A novel strength analysis method is used for crankshaft high cycle fatigue simulation of the diesel engine based on flexible multi-body dynamics in this paper. In order to investigate the fatigue strength of other parts of the diesel engine at the same time, a complete coupled dynamic model of diesel engine crankshaft and block is built and coupled dynamics simulation is carried out. Then dynamics calculation results of each part is extracted for high cycle fatigue analysis and the reliability research of the crankshaft, The simulation results show that, the minimum safety factors of the crankshaft is 1.301, it meet the strength requirements, the safety factors of the block and the cap could be calculated at the same time. These suggest that this method can guide the design of the diesel engine crankshaft and has gained significant importance in practical study.

Multi-Body Dynamics Analysis of V-Type Diesel Engine Crankshaft

2014 ◽  
Vol 988 ◽  
pp. 617-620
Author(s):  
Ran Ran Wang ◽  
Yan Ming Xu ◽  
Xian Bin Teng
Keyword(s):  
Finite Element ◽  
Diesel Engine ◽  
Dynamic Models ◽  
Simulation Analysis ◽  
Simulation Method ◽  
Dynamics Simulation ◽  
Finite Element Software ◽  
Body Dynamics ◽  
Multi Body ◽  
Engine Crankshaft

Based on the V-type diesel engine crankshaft system, the paper combined the finite element method (fem) and multi-body dynamics method together, made a virtual simulation analysis. First, by 3d software and finite element software to establish the multi-body dynamic models of the crankshaft, bearing and piston, then simulated the actual engine working condition, and got the data such as crankshaft acceleration, velocity and displacement by the multi-body dynamics simulation analysis. By calculation, the paper found that by using the combination of finite element and multi-body simulation method, can we effectively simulate the diesel engine crankshaft dynamics characteristics.

The torsional vibration simulation of the diesel engine crankshaft system based on multi-body dynamic model

2021 ◽  
pp. 146441932110202
Author(s):  
Mengsheng Wang ◽  
Nengqi Xiao ◽  
Minghui Fan
Keyword(s):  
Diesel Engine ◽  
Torsional Vibration ◽  
Silicone Oil ◽  
Engineering Application ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Three Dimensional Model ◽  
Body Dynamics ◽  
Multi Body ◽  
Engine Crankshaft

In order to analyze the torsional vibration of the crankshaft system, a three-dimensional model of the crankshaft system is established, consisted of the piston, connected rod, crank shaft, flywheel and silicone oil damper. Use by multi-body dynamics simulation software ADAMS, created the multi-body dynamics model of the multiple degrees of freedom consisting of rigid hybrid engine system, to do the torsional vibration response simulation, analysis of the torsional vibration on the crankshaft. Through the torsional vibration test of the diesel engine crankshaft system, the accuracy of the simulation calculation results have been verified. This simulation result has higher accuracy, and this calculation method has certain engineering application value.

scholarly journals Multi-Body Dynamics Analysis of V-Type Diesel Engine Crankshaft

2014 ◽  
Vol 8 (1) ◽  
pp. 744-749
Author(s):  
Yanming Xu ◽  
Xianbin Teng ◽  
Zhimin Yu ◽  
Tao Ge
Keyword(s):  
Diesel Engine ◽  
Dynamics Analysis ◽  
Body Dynamics ◽  
Multi Body ◽  
Engine Crankshaft

Dynamics Simulation of Diesel Engine Piston pin Based on ADAMS and its Application in Fault Diagnosis

2011 ◽  
Vol 308-310 ◽  
pp. 1860-1864
Author(s):  
Hai Bing Xiao ◽  
Xiao Peng Xie
Keyword(s):  
Fault Diagnosis ◽  
Diesel Engine ◽  
Dynamics Simulation ◽  
Fast Fourier Transformation ◽  
Engine Piston ◽  
Power Spectral ◽  
Body Dynamics ◽  
Piston System ◽  
Simulation Results ◽  
Multi Body

In this paper, ADAMS multi-body dynamics simulation was introduced in order to solve the diesel engine piston pin dynamics. Take diesel engine piston for example, the model of piston system was established based on ADAMS/Engine module. According to rotational speed of crankshaft, piston pin dynamics simulation was analyzed. Through Fast Fourier Transformation, piston pin power spectral density was got for piston pin fault diagnosis. The results show that simulation results are consistent with theory, dynamics simulation applied in fault diagnosis is feasible.

scholarly journals Diesel Engine Crankshaft High Cycle Fatigue Life Estimation and Improvement Through FEA

2016 ◽  
Vol V5 (01) ◽  
Author(s):  
Mr. Suraj K. Kolhe ◽  
Mr. Amit Chaudhari ◽  
Mr. Prafull Ghare ◽  
Dr. J. V. L. Venkatesh ◽  
Keyword(s):  
Fatigue Life ◽  
Diesel Engine ◽  
High Cycle Fatigue ◽  
Cycle Fatigue ◽  
Life Estimation ◽  
Fatigue Life Estimation ◽  
Engine Crankshaft

Fatigue Strength Analysis of Internal Combustion Engine Crankshaft Based on Dynamic Simulation

2012 ◽  
Vol 442 ◽  
pp. 281-285
Author(s):  
Na Liu ◽  
Guo Xiang Li ◽  
Shuai Guo Lang ◽  
Yu Ping Hu ◽  
Xiao Ri Liu
Keyword(s):  
Fatigue Strength ◽  
Dynamic Stress ◽  
Combustion Engine ◽  
Strength Analysis ◽  
Safety Coefficient ◽  
Working Cycle ◽  
Body Dynamics ◽  
Multi Body ◽  
Engine Crankshaft ◽  
Body Dynamic

This paper established multi-body dynamic model of block-crankshaft system by method of finite element substructure and multi-body dynamics, and carried out the distribution of dynamic stress acting on the crankshaft in a working cycle and on this basis carried out the fatigue strength analysis, then received the fatigue safety coefficient and fatigue life data of each part of the crankshaft.

Vibrating Simulation of Diesel Engine Based on Multi-Body Dynamics

2011 ◽  
Vol 97-98 ◽  
pp. 706-711 ◽  
Author(s):  
Kang Shao ◽  
Chang Wen Liu ◽  
Fong Rong Bi ◽  
Xian Feng Du ◽  
Xia Wang ◽  
...  
Keyword(s):  
Diesel Engine ◽  
System Analysis ◽  
Simulation Analysis ◽  
Three Dimensional ◽  
Dynamics Simulation ◽  
Main Bearing ◽  
Engine Vibration ◽  
Body Dynamics ◽  
Flexible Body Dynamics ◽  
Multi Body

Taking example of a four-cylinder inline diesel engine that used in vehicle, this paper makes an assembly engine of three-dimensional that based on virtual prototype technology. While using the flexible-body dynamics simulation, the main bearing load that effect engine’s vibration will be gained. And the key point vibration response will be gained when the support part constrained. The experimental results coincide with the simulation results shows the correction of the simulation analysis. The initial stage of the vibration can be predicted by using the method of multi-body system analysis, and this guide the designer to identify the engine vibration.

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