Estimation of Counterweight for Shaking Force Balancing of a Crank-Rocker Mechanism

Article Preview

Abstract:

This paper proposes a method of balancing the shaking force of a crank-rocker mechanism which rotates at a constant angular speed with zero-unbalanced angle. In this approach, the kinematic synthesis and dynamic behavior of the mechanism are combined. The method is realized by modeling the mass of the connecting rod to represent two concentrated masses placed at the crank and rocker pins. The shaking forces balancing are done by adding counterweight masses to the crank and the rocker. The verification and numerical computation of the proposed balancing technique were carried out using ADAMS Software. The results showed that the sum of all the resultant forces was completely eliminated for the newly-balanced crank rocker mechanism.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

135-140

Citation:

Online since:

October 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] H.S. Yan, R.C. Soong, Kinematic and dynamic design of four-bar linkages by links counterweighing with variable input speed, Mechanism and Machine Theory. 36, 9 (2001) 1051-1071.

DOI: 10.1016/s0094-114x(01)00032-5

Google Scholar

[2] Himanshu Chaudhary, Subir Kumar Saha, Balancing of shaking forces and shaking moments for planar mechanisms using the equimomental systems, Mechanism and Machine Theory. 43 (2008) 310-334.

DOI: 10.1016/j.mechmachtheory.2007.04.003

Google Scholar

[3] V.H. Arakelian, M.R. Smith, Shaking force and shaking moment balancing of mechanisms: A historical review with new examples, ASME Journal of Mechanical Design. 127 (2005) 334-339.

DOI: 10.1115/1.1829067

Google Scholar

[4] Sébastien Briot , Vigen Arakelian, Complete shaking force and shaking moment balancing of in-line four-bar linkages by adding a class-two RRR or RRP Assur group, Mechanism and Machine Theory. 57 (2012) 13-26.

DOI: 10.1016/j.mechmachtheory.2012.06.004

Google Scholar

[5] Richard S. Berkof, Complete force and moment balancing of inline four-bar linkages, Mechanism and Machine Theory. 8 (1973) 397-410.

DOI: 10.1016/0094-114x(73)90076-1

Google Scholar

[6] M.R. Smith, L. Maunder, Inertia forces in a four-bar linkage, Mechanical Engineering Science. 9, 3 (1967) 218-225.

DOI: 10.1243/jmes_jour_1967_009_034_02

Google Scholar

[7] M.R. Berkof, G.G. Lowen, A new method for completely force balancing simple linkages, Transactions of the ASME, Journal of Engineering for Industry. (1969) 21-26.

DOI: 10.1115/1.3591524

Google Scholar

[8] H. Hilpert, Weight balancing of precision mechanical instruments, Journal of Mechanisms. 3, 4 (1968) 289-302.

DOI: 10.1016/0022-2569(68)90005-0

Google Scholar

[9] L. Robert, Norton. Kinematics and Dynamics of Machinery, 1st ed., McGraw-Hill, New York, (2009).

Google Scholar

[10] D.H. Myszka, Mechanics and Mechanisms Applied Kinematic Analysis. 3rd ed., Prentice-Hall, New Jersey, (2005).

Google Scholar

[11] Shigley, Joseph, Uicher, Jonh Jr., Theory of Machines and Mechanisms. 2nd ed., McGraw-Hill, New York, (1995).

Google Scholar