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.

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.

Obstacle Performance of Track Robot with Passive Rocker Based on Recurdyn

2013 ◽  
Vol 397-400 ◽  
pp. 1580-1588
Author(s):  
Man Lu Liu ◽  
Jing Zhang ◽  
Kuan Li
Keyword(s):  
Three Dimensional ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Prototype Model ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Kinematics Simulation ◽  
Body Dynamics ◽  
Set Up ◽  
Multi Body

To solve the instability of track robot in the process of climbing obstacles, a track robot with passive rocker was designed and a three-dimensional model of track robot was developed by Unigraphics NX in this paper. Furthermore, the kinematic analysis was made for obstacle performance of the track robot. The virtual prototype model of the track robot with passive rocker was set up by using the tracked vehicle subsystem of multi-body dynamics simulation software RecurDyn and kinematics simulation for this robot was made. The simulation results verify the feasibility of the machine and provide some theoretical guidance for developing the obstacle performance of track robot.

The Machine Design and Parameter Analysis of the Bar Bending which Based on the ADAMS

2015 ◽  
Vol 779 ◽  
pp. 84-87
Author(s):  
Xiao Qian Xia ◽  
Wei Min Dong ◽  
Jin Song Luo
Keyword(s):  
Damping Ratio ◽  
Three Dimensional ◽  
Simulation Software ◽  
Parameter Analysis ◽  
Dynamics Simulation ◽  
Three Dimensional Model ◽  
Optimization Analysis ◽  
Body Dynamics ◽  
Bending Mechanism ◽  
Multi Body

The three dimensional model of the bar bending mechanism was carried out by using the software Solidegde in this article,and then,import it into the multi-body dynamics simulation software Adams for the dynamic simulation and parameter optimization. Analysis results show that: The non-uniform stress phenomenon on the institutions must be effectively reduce under a appropriate damping ratio coefficient .

Research of Amplification Frame Optimization Based on Optistruct

2012 ◽  
Vol 510 ◽  
pp. 541-544
Author(s):  
Bing Zhong
Keyword(s):  
Stress Distribution ◽  
Structural Optimization ◽  
Working Conditions ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Body Dynamics ◽  
Utilization Ratio ◽  
Simulation Results ◽  
The Cost ◽  
Multi Body

The motion of amplification frame of dumper was simulated by multi-body dynamics simulation software ADAMS, and the danger working conditions of amplification frame were calculated. The stress of amplification frame was simulated and analyzed by Optistruct software. The results show that the stress distribution in amplification frame is not uniform and it is big in the middle and small in the edge zeros. The structure of amplification is optimized according to the simulation results. The utilization ratio of the material increases and the cost of production decreases after structural optimization.

scholarly journals Firing order selection for a V20 commercial diesel engine with FEV Virtual Engine

2017 ◽  
Vol 169 (2) ◽  
pp. 64-70
Author(s):  
Konrad BUCZEK ◽  
Sven LAUER
Keyword(s):  
Diesel Engine ◽  
Torsional Vibration ◽  
High Speed ◽  
Selection Process ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Order Selection ◽  
Engine Operation ◽  
Wide Range ◽  
Firing Order

The continuously increasing mechanical and thermal loads of modern engines require optimization of the designs with incorporation of a wide range of different aspects. Application of advanced computer simulations in the development process for most engine components is well established, leading to the creation of well optimized products. However, the optimization of such design variables ike the firing order, which influences engine operation in several disciplines, is still challenging. Considering the ever increasing peak firing pressure requirements, the layout of the firing order in multi-cylinder commercial engines is an efficient way to reduce crank train / overall engine vibration and main bearing loads, whilst controlling engine balancing and preserving adequate gas exchange dynamics. The proposed general firing order selection process for four-stroke engines and, in particular, its first part being the optimization of the firing order based on crank train torsional vibration, is the main topic of this paper. The exemplary study for a V20 high speed commercial Diesel engine regarding the influence of the firing sequence on crank train torsional vibration has been conducted with the multibody dynamics simulation software “FEV Virtual Engine”. It addresses various engine crankshaft layouts and engine applications.

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

Locomotive Underactuated Implement Guided via Elastic Elements (L.U.I.G.E.E): A Preliminary Design

2015 ◽  
Author(s):  
Thomas Reilly ◽  
Jerome K. O’Rourke ◽  
Daniel Steudler ◽  
Davide Piovesan ◽  
Roberto Bortoletto
Keyword(s):  
Human Body ◽  
Equilibrium Position ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Original Position ◽  
Preliminary Design ◽  
Top Down ◽  
Body Dynamics ◽  
Multi Body ◽  
Elastic Elements

This paper presents the simulation and fabrication of a bipedal humanoid system actuated with linear springs to produce a standing equilibrium position. The humanoid system is comprised of two leg assemblies connected by a hip bracket. Eleven pairs of springs were attached to the system in locations designed to simulate the muscles and tendons in a human body. The assembly was modeled in the multi-body dynamics simulation software SimWise 4D. Simulations were performed to determine the springs’ stiffness and natural lengths using a top-down heuristic approach. After a set of springs were found to produce a good simulated stable position, they were cross referenced to standard commercially-available parts. A final simulation was then performed to verify that the real-world spring values produced a stable system. Working in tandem with SimWise 4D, the humanoid assembly was fabricated using PLA plastic via an extrusion-type rapid prototyping machine. From the results of the simulation, the set of working springs were implemented onto the plastic model. After final modifications, the assembly then produced a standing equilibrium position. Finally, the assembly was perturbed in several directions to ensure that after the system experienced a displacement it would then return to its original position.

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.

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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