scholarly journals APPLICABILITY EVALUATION AND SHAPE OPTIMIZATION OF THE ELASTIC VALVE STATIONARILY INSTALLED IN PNEUMATIC IMPACT MACHINES

2021 ◽  
Vol 2 (3) ◽  
pp. 189-194
Author(s):  
Boris B. Danilov ◽  
Alexandr A. Rechkin
Keyword(s):  
Shape Optimization ◽  
Simulation Model ◽  
Contact Interaction ◽  
Elastic Valve ◽  
Construction Design ◽  
Pneumatic Impact ◽  
Applicability Evaluation

The possibility of using construction design with a stationarily installed conical ring-shaped elastic valve in pneumatic impact machines is considered. Using a simulation model of the contact interaction of the striker with the valve, the shape of the valve was optimized and its applicability was proved for sealing the return strike chamber.

scholarly journals The dynamic simulation model of apples contact interaction

2019 ◽  
Vol 96 (4) ◽  
pp. 99-108 ◽  
Author(s):  
R. Rogatynskyi ◽  
◽  
R. Hevko ◽  
Y. Nykerui ◽  
O. Dmytriv ◽  
...  
Keyword(s):  
Simulation Model ◽  
Dynamic Simulation ◽  
Contact Interaction ◽  
Dynamic Simulation Model

Numerical Simulation of B-Pillar’s Hot Press Forming Process and its Shape Optimization

2011 ◽  
Vol 138-139 ◽  
pp. 749-753 ◽  
Author(s):  
An Long ◽  
Rui Ge ◽  
Yi Sheng Zhang ◽  
Xing Wei
Keyword(s):  
Numerical Simulation ◽  
Shape Optimization ◽  
Simulation Model ◽  
Hot Press ◽  
Forming Process ◽  
Press Forming ◽  
Corner Radius ◽  
Hot Press Forming ◽  
Simulation Results

To solve the problem of part’s section thinning easily occurred in hot press forming, the numerical simulation model of hot press forming process of a B-Pillar on one domestic car was established, the forming process was simulated by PAM-STAMP 2G software, the area thinning on the part were forecasted. Then through modifying the corner radius and the tiny shape of the part, the thinning level lightened greatly, the effect was certificated by new simulation results and practical production.

scholarly journals DESIGNING ANNULAR ELASTIC VALVE THAT CONTROLS AIR EXHAUST FROM WORKING CHAMBER OF PNEUMATIC IMPACT MACHINE

2021 ◽  
Vol 2 (4) ◽  
pp. 78-86
Author(s):  
Alexander Yu. Primychkin
Keyword(s):  
Distribution System ◽  
Energy Performance ◽  
Design Stage ◽  
Air Distribution ◽  
Elastic Valve ◽  
Impact Machine ◽  
Energy Characteristics ◽  
Working Chamber ◽  
Pneumatic Impact ◽  
And Control

The paper considers one of the promising shut-off and control elements of the air distribution system of pneumatic impact machines - an annular elastic valve (CUV). This element allows you to reduce the energy consumption of pneumatic devices. Unfavorable combinations of factors that hinder the movement of the valve necessary for sealing the working chamber are considered. The paper presents a method for calculating the elastic valve that controls the release of energy from the return chamber of the pneumatic impact machine, which allows determining the main geometric dimensions of the valve device at the design stage, which provides a stable self-oscillating cycle of the pneumatic impact machine with the specified energy characteristics. The developed technique was used in the modernization of the air distribution system of the ring impact machine (KUM), designed for immersion of rod elements in the ground. Tests of the resulting sample in production conditions confirmed the increase in energy performance compared to previously produced machines of a similar type.

scholarly journals A Proposal Of Simulation Model Of A Wind-Steering System For Sailing Yachts, Based On Single-Stage Servo-Pendulum Coupled With Main Rudder

2015 ◽  
Vol 22 (2) ◽  
pp. 15-22
Author(s):  
Andrzej Piętak ◽  
Maciej Mikulski ◽  
Marek Melzacki ◽  
Kamil Czerwiński
Keyword(s):  
Simulation Model ◽  
Steering System ◽  
Single Stage ◽  
Design Data ◽  
Pendulum System ◽  
Construction Design ◽  
Efficiency Performance ◽  
Speed Up ◽  
Offshore Sailing ◽  
Selection Of

Abstract The aim of this study was to investigate possible application of fast design prototyping methods for wind-steering systems used in offshore sailing yachts. The development of such methods would help to speed up the construction work and reduce the scope of necessary experimental research, prior to implementation of the system. In the present work, based on an analysis of existing designs of windvane systems, a preliminary selection of the system configuration has been undertaken, in terms of a compromise between efficiency, performance, and design complexity. Construction design of a single-stage, servo – pendulum system, has been developed by using the Autodesk Inventor design package. Next, based on the design data, a simulation model of the system, has been produced by using Matlab - Simulink software and SimMechanics library. The model was further verified in terms of kinematics mapping with the use of Matlab visualization tools.

Novel simulation model for many-body multipole dispersion interactions

1998 ◽  
Vol 94 (3) ◽  
pp. 417-433 ◽  
Author(s):  
MARTIN VAN DER HOEF ◽  
PAUL MADDEN
Keyword(s):  
Simulation Model ◽  
Dispersion Interactions ◽  
Many Body
Sign in / Sign up

Export Citation Format

Share Document