Simulation and Analysis of Frame Structure of Military Transport Truck

2011 ◽  
Vol 291-294 ◽  
pp. 2237-2240
Author(s):  
Guo Nian Yao ◽  
Hai Ying Huang ◽  
Li Juan Wang
Keyword(s):  
Virtual Prototyping ◽  
Frame Structure ◽  
Vibration Modes ◽  
Three Dimension ◽  
Force And Motion ◽  
Body Dynamics ◽  
Virtual Prototyping Technology ◽  
Multi Body ◽  
High Credibility ◽  
Processor Module

In order to design the vibrator with the similar structure to military transport truck, which will be used in simulating transport environment and evaluating the transportation properties of the tested product, three-dimension model of overall structure of truck frame, crossbeams and floor is established with ADAMS/View based on multi-body dynamics theory and virtual prototyping technology. Post-processing of the simulation and analysis results is executed with ADAMS/Post Processor module with a military truck model in the study. According to the bump of vehicle during transport and the chassis vibration, the constraints, force and motion accord with the actual transport are put on the model. Vibration modes of all orders and the spectrum are gained and analyzed in detail. The results indicate that the simulation is consistent with the actual transport, which shows the simulation of the overall frame structure owns high credibility.

Simulation Environment for the Real-Time Dynamic Analysis of Hybrid Mobile Machines

2015 ◽  
Author(s):  
Ezral Baharudin ◽  
Jarkko Nokka ◽  
Henri Montonen ◽  
Paula Immonen ◽  
Asko Rouvinen ◽  
...  
Keyword(s):  
Real Time ◽  
Virtual Prototyping ◽  
Power Sources ◽  
Hybrid Technology ◽  
Time Dynamic ◽  
Emission Regulations ◽  
Body Dynamics ◽  
Mobile Machinery ◽  
Multiple Power ◽  
Multi Body

The interest in using hybrid technology in Non-Road Mobile Machinery (NRMM) has increased significantly in the late 2000s due to tightening emission regulations (Tier 4). In general, utilization of hybrid technology can simplify the vehicle driveline compared to conventional mechanical and hydraulic power transmissions. On the other hand, hybrid technology and its different driving modes and multiple power sources creates new challenges in the design process. Many industries have used co-simulation and virtual prototyping approaches successfully as a development and diagnostic tool. However, it is still rarely used in the design of hybrid mobile machines. This is due to the fact, that the computer analysis of a mobile machine is a multidisciplinary task which requires a deep knowledge in several engineering areas. In this paper, a novel real-time co-simulation platform is presented that couples multi-body dynamics based physics modelling and Matlab/Simulink–based hybrid driveline modelling. The presented approach enables a fast and accurate virtual prototyping tool to calculate dimension hybrid driveline components and test various hybridization concepts.

Simulation Analysis and Structure Optimum Design of the High Speed Conveying Manipulator Based on ADAMS

2014 ◽  
Vol 945-949 ◽  
pp. 121-126 ◽  
Author(s):  
Feng Wei Xue ◽  
Ji Ping Zhou
Keyword(s):  
Production Line ◽  
High Speed ◽  
Design Theory ◽  
Simulation Analysis ◽  
Structural Characteristics ◽  
Transmission System ◽  
Manufacturing Cost ◽  
Body Dynamics ◽  
Virtual Prototyping Technology ◽  
Multi Body

The conveying manipulator is an indispensable transmission system of JM31-160 automatic stamping production line, and structural characteristics of the manipulator directly affect the productivity of auto stamping production line. Using virtual prototyping technology, basing on the Multi-body dynamics theory, explored the technical line of dynamic design theory to apply on the transmission system. Reaching a conclusion the function of optimized structure is improved, and manufacturing cost brings down.

Research on Crosswind Stability of FSAE Racing Car with Rear Wing at Different Attack Angles

2012 ◽  
Vol 152-154 ◽  
pp. 737-742 ◽  
Author(s):  
Jun Ni ◽  
Si Zhong Chen ◽  
Da Feng ◽  
Xu Jie Wang ◽  
Jia Xin Hao
Keyword(s):  
Virtual Prototyping ◽  
Aerodynamic Characteristics ◽  
Attack Angle ◽  
Feasible Method ◽  
Body Model ◽  
Rear Wing ◽  
Air Resistance ◽  
Crosswind Stability ◽  
Virtual Prototyping Technology ◽  
Multi Body

In order to analyze the performance of a certain FSAE racing car with rear wing at different attack angles by virtual prototyping technology. The multi-body model of a FSAE racing car which takes non-linear factors into consideration was built by applying ADAMS/Car. The correctness of the model is verified by comparison with the actual experiment result. By the simulation of the air resistance and lift characteristics of the rear wing, a feasible method to building the aerodynamic characteristics of the rear wing in multi-body model was proposed. Based on these, the crosswind stability of FSAE racing car with rear wing at different attack angles was analyzed, the result shows that the effect of crosswind is reduced with the increase of the attack angle of the rear wing.

Robot Kinematics and Dynamics Analysis Based on Virtual Prototyping Technology

2012 ◽  
Vol 503-504 ◽  
pp. 752-755
Author(s):  
Zhi Ming Wang ◽  
Xuan Zhou
Keyword(s):  
New Technology ◽  
Rapid Development ◽  
Virtual Prototyping ◽  
Robot Kinematics ◽  
Kinematics And Dynamics ◽  
Dynamics Analysis ◽  
Robot Arm ◽  
Analysis Method ◽  
Virtual Prototyping Technology ◽  
Multi Body

Virtual prototyping is a new technology with the rapid development of computer technology. This paper put forward a systematic kinematics and dynamics analysis method based on virtual prototyping technology to simulate multi-body dynamics of robot arm. After the design requirements were introduced, the conceptual design of robot arm was then proposed, and the kinematics and dynamics analysis method was present with the simulation results. The kinematics and dynamics analysis of a robot arm was given as an example, which demonstrates that this method is obviously helpful for product design

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.

scholarly journals Development of a Servo-Based Broaching Machine Using Virtual Prototyping Technology

2017 ◽  
Vol 63 (7-8) ◽  
pp. 466
Author(s):  
Seok Hong Park ◽  
Duc Viet Dang ◽  
Trung Thanh Nguyen
Keyword(s):  
Sliding Mode ◽  
Virtual Prototyping ◽  
Cost Savings ◽  
Ball Screw ◽  
Design Stage ◽  
Mechanical Structure ◽  
Tool Performance ◽  
Proposed Model ◽  
Virtual Prototyping Technology ◽  
Multi Body

Predicting machine tool performance at the design stage is one way to resolve the time issue and achieve cost savings. The objective of this paper was to develop a new non-hydraulic broaching machine using a servo motor, ball screw, and roll element linear guide using virtual prototyping technology. First, we developed a multi-body simulation model (MBS) of a servo-based broaching machine to investigate its dynamic behaviour. Then, an adaptive sliding mode proportional-integral-derivative (PID)-based controller (ASMPID) was proposed to conduct the broaching process. We then performed a co-simulation between the mechanical structure and virtual controller to investigate the ram body trajectory and identify the optimal control parameters. Finally, we manufactured a prototype machine to evaluate the simulation results and determine the benefits of the new system. Our results indicated that the proposed model, which includes a mechanical structure and intelligent controller, effectively improved broaching machine design. Therefore, this work is expected to improve the prototyping efficiency of new broaching machines.

scholarly journals Estimating maximum bite performance in Tyrannosaurus rex using multi-body dynamics

2012 ◽  
Vol 8 (4) ◽  
pp. 660-664 ◽  
Author(s):  
K. T. Bates ◽  
P. L. Falkingham
Keyword(s):  
Body Size ◽  
Feeding Behaviour ◽  
Ontogenetic Change ◽  
Positive Allometry ◽  
Musculoskeletal Models ◽  
Terrestrial Animal ◽  
Body Dynamics ◽  
Mode Of Life ◽  
Scaling Analyses ◽  
Multi Body

Bite mechanics and feeding behaviour in Tyrannosaurus rex are controversial. Some contend that a modest bite mechanically limited T. rex to scavenging, while others argue that high bite forces facilitated a predatory mode of life. We use dynamic musculoskeletal models to simulate maximal biting in T. rex . Models predict that adult T. rex generated sustained bite forces of 35 000–57 000 N at a single posterior tooth, by far the highest bite forces estimated for any terrestrial animal. Scaling analyses suggest that adult T. rex had a strong bite for its body size, and that bite performance increased allometrically during ontogeny. Positive allometry in bite performance during growth may have facilitated an ontogenetic change in feeding behaviour in T. rex , associated with an expansion of prey range in adults to include the largest contemporaneous animals.

Sir Robert Stawell Ball and methodologies of modern screw theory

2002 ◽  
Vol 216 (1) ◽  
pp. 1-11 ◽  
Author(s):  
H Lipkin ◽  
J Duffy
Keyword(s):  
Computational Geometry ◽  
Rigid Body ◽  
Lie Algebra ◽  
Screw Theory ◽  
Mechanical Design ◽  
Ball Screw ◽  
Dual Numbers ◽  
Body Dynamics ◽  
Rigid Body Mechanics ◽  
Multi Body

The theory of screws was largely developed by Sir Robert Stawell Ball over 100 years ago to investigate general problems in rigid body mechanics. Nowadays, screw theory is applied in many different but related forms including dual numbers, Plilcker coordinates and Lie algebra. An overview of these methodologies is presented along with a perspective on Ball. Screw theory has re-emerged after a hiatus to become an important tool in robot mechanics, mechanical design, computational geometry and multi-body dynamics.

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