Optimum Balancing of Slider-crank Mechanism Using Equimomental System of Point-masses

Chaudhary, Kailash; Chaudhary, Himanshu

doi:10.1016/j.protcy.2014.08.006

Cited by 14 publications

(7 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, each link of the mechanism is modeled Dynamic balancing of the cleaning unit using three-point masses as shown in Figure 5(b). There are nine unknown parameters of threepoint masses: m ij , u ij and a ij , for i = 1, 2, 3 and j = 1, 2, 3 and four equations for a dynamically equivalent system of point masses (Chaudhary and Saha, 2009). Hence, the five parameters of each link are assigned arbitrarily so that the four parameters can be determined using four equations.…”

Section: Resultsmentioning

confidence: 99%

“…The vector sum of reactions of all inertia forces is defined as the shaking force. Whereas, the shaking moment is defined as the resultant of inertia couple and moment of inertia forces (Chaudhary and Saha, 2009). According to the definition, the shaking force and shaking moment for joint 1o 1 are expressed as:…”

Section: Dynamic Analysis Of the Cleaning Mechanismmentioning

confidence: 99%

“…Moreover, the researchers have applied the conventional optimization techniques such as gradient search methods based on the priori approach to minimize the shaking force and moment (Chaudhary and Saha, 2007b;Li, 1998). But, these techniques need an initial start point to find the optimal solution (Chaudhary and Chaudhary, 2014a). Thus, these algorithms give the local solution near to start point.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dynamic balancing of the cleaning unit used in agricultural thresher using a non-dominated sorting Jaya algorithm

Singh

Chaudhary

2020

Self Cite

View full text Add to dashboard Cite

Purpose This paper aims to propose a dynamically balanced mechanism for cleaning unit used in agricultural thresher machine using a dynamically equivalent system of point masses. Design/methodology/approach The cleaning unit works on crank-rocker Grashof mechanism. This mechanism can be balanced by optimizing the inertial properties of each link. These properties are defined by the dynamic equivalent system of point masses. Parameters of these point masses define the shaking forces and moments. Hence, the multi-objective optimization problem with minimization of shaking forces and shaking moments is formulated by considering the point mass parameters as the design variables. The formulated optimization problem is solved using a posteriori approach-based algorithm i.e. the non-dominated sorting Jaya algorithm (NSJAYA) and a priori approach-based algorithms i.e. Jaya algorithm and genetic algorithm (GA) under suitable design constraints. Findings The mass, center of mass and inertias of each link are calculated using optimum design variables. These optimum parameters improve the dynamic performance of the cleaning unit. The optimal Pareto set for the balancing problem is measured and outlined in this paper. The designer can choose any solution from the set and balance any real planar mechanism. Originality/value The efficiency of the proposed approach is tested through the existing cleaning mechanism of the thresher machine. It is found that the NSJAYA is computationally more efficient than the GA and Jaya algorithm. ADAMS software is used for the simulation of the mechanism.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Dynamic Analysis Of the Cleaning Mechanismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic balancing of the cleaning unit used in agricultural thresher using a non-dominated sorting Jaya algorithm

Singh

Chaudhary

2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The main research on the inertial force balance includes the following: According to Chaudhary et al [7] , the shaking forces and shaking moments developed as a result of inertial forces in mechanisms were minimized using the genetic algorithm (GA), which was found to be better than the conventional optimization algorithm results. Arakelian et al [8] adopted two symmetric sliders to balance the inertial force and reduce the shock torque by adjusting the parameters of the connecting rod.…”

Section: Introduction mentioning

confidence: 99%

Inertial force balance and ADAMS simulation of the oscillating sieve and return pan of a rice combine harvester

Wei

Wang

et al. 2018

International Journal of Agricultural and Biological Engineering

View full text Add to dashboard Cite

To reduce the inertial force of the oscillating sieve and return pan of a rice combine harvester, partial equilibrium was adopted. Firstly, based on the kinematic analysis of a slider-crank mechanism, the appropriate mass of counterweight intervals was achieved. Then, an ADAMS dynamic simulation was used to determine the optimum balance mass of the oscillating sieve and return pan individually. Considering the relative motion between the return pan and the oscillating sieve, the overall inertial force of the two parts would be reduced. The simulation results indicated that the optimum counterweight of the oscillating sieve was 15.5 kg based on an analysis of the movement tracks of the mass center and overall inertial force. The results also showed that the overall balance of inertial force not only reduced the counterweight but also decreased the overall inertial force of the oscillating sieve and return pan. Finally, a search for the most suitable crank initial angle of the return pan to reduce the overall inertial force and optimize the overall balance revealed three groups of initial angles: φ=0°, φ=45°, and φ=90°. The results indicated that arranging the initial angle of the crank of the oscillating sieve and return pan in the same position (φ=90°) was the most favorable for reducing the overall inertial force. In this situation, the optimum counterweight of the oscillating sieve was only 14.0 kg. The results can provide references for the design of the overall balance of the inertial force in the cleaning components of a combine harvester.

show abstract

“…The concept of equimomental bodies is used to model dynamics [5], optimize mass distribution [6], and design mechanisms with reduced shaking forces and moments [2]. This method has also been used for dynamic balance, which is the full elimination of base shaking forces and moments [1,10].…”

Section: Introductionmentioning

confidence: 99%

On the Dynamic Equivalence of Planar Mechanisms, an Inertia Decomposition Method

Jong

Dijk

Herder

2016

New Trends in Mechanism and Machine Science

View full text Add to dashboard Cite

Abstract. In this paper the dynamic equivalence of planar mechanisms is investigated by decomposition of inertia into point masses. For a planar rigid body, two point masses can fully describe its dynamic behavior. The location of one these points can be chosen freely, fixing the second point. By locating one of the two point masses of a link on a revolute joint, this link can be fully described by the one remaining point mass. By applying this approach throughout the mechanism's chain, a reduced parameterization of the dynamics is found. The inverse process -inertia recompositiongives a range of dynamic equivalent mechanisms. This paper gives the bounds for the selection of such equivalent mechanisms. Simulations of two dynamically equivalent 4-bar mechanisms, derived using this method, show equal base reaction forces and moments, confirming the dynamic equivalence.

show abstract

Optimum Balancing of Slider-crank Mechanism Using Equimomental System of Point-masses

Cited by 14 publications

References 14 publications

Dynamic balancing of the cleaning unit used in agricultural thresher using a non-dominated sorting Jaya algorithm

Dynamic balancing of the cleaning unit used in agricultural thresher using a non-dominated sorting Jaya algorithm

Inertial force balance and ADAMS simulation of the oscillating sieve and return pan of a rice combine harvester

On the Dynamic Equivalence of Planar Mechanisms, an Inertia Decomposition Method

Contact Info

Product

Resources

About