Log in

Relevant bibliographies by topics / Balancing the crank mechanism / Journal articles

To see the other types of publications on this topic, follow the link: Balancing the crank mechanism.

Journal articles on the topic 'Balancing the crank mechanism'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Balancing the crank mechanism.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Yuan, Rui, Yu Sun, Wen Hai Fan, Kai Wu, and Zheng Jun Chen. "Research on Balancing Method for Inertia Force of Slider-Crank Mechanism with Small Linkage Ratio." Advanced Materials Research 591-593 (November 2012): 2011–15. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.2011.

Full text

Abstract:

In view of the difficult balance of inertia force for the slider-crank mechanism, on the basis of analyzing inertia force of the slider-crank mechanism, a new balancing method of inertia force was proposed for the slider-crank mechanism with small linkage ratio, the rotary mass and the moving mass had replaced the mechanism mass, the inertia force of rotary mass was balanced by rotary weight counterbalance, a spring was disposed by slider, it provided variable elastic force and balanced the inertia force of moving mass. Then the balancing method was analyzed deeply and the theoretical derivation was made, the results show that this balancing method would achieved approximately balance for inertia force of the slider-crank mechanism with small linkage ratio.

APA, Harvard, Vancouver, ISO, and other styles

2

Mohammed, S. E., M. B. Baharom, and A. Rashid A. Aziz. "Estimation of Counterweight for Shaking Force Balancing of a Crank-Rocker Mechanism." Applied Mechanics and Materials 663 (October 2014): 135–40. http://dx.doi.org/10.4028/www.scientific.net/amm.663.135.

Full text

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.

APA, Harvard, Vancouver, ISO, and other styles

3

Liu, Yansong, Jujiang Cao, Sheng Ren, and Yao Wu. "Inertia Force Balance of Crank-Group Driving Mechanism Based on Crank Unit." Open Mechanical Engineering Journal 9, no. 1 (September 16, 2015): 601–4. http://dx.doi.org/10.2174/1874155x01509010601.

Full text

Abstract:

The crank unit is defined as the basic unit of the crank-group driving mechanism for the modular design and production, and the balance methods of inertia force are researched on the crank unit in crank-group driving mechanism’s modular design. The factors affecting the balancing weight’s position and mass are studied. This indicates that the product of the mass and gyration radius of the balancing weight is influenced by the number, mass, length of the crank and the total mass moving rod in the mechanism. The balance method based on the crank unit is received to meet the modular design and production. This approach achieves the balance of crank-group driving mechanism quickly and efficiently.

APA, Harvard, Vancouver, ISO, and other styles

4

Groza, Doru. "Balancing of a Slider-Crank Mechanism by Using a Counter Mass and a Progressive Spring with Two Rates." Applied Mechanics and Materials 823 (January 2016): 37–42. http://dx.doi.org/10.4028/www.scientific.net/amm.823.37.

Full text

Abstract:

This paper investigates the possibility to individually balance the specific shaking forces and shaking moment of the slider-crank mechanism. The most common mean of balancing the slider crank mechanism is to use a counter mass. This solution is applied for almost every slider-crank mechanism used in commercial mechanical devices. However the nature of the mechanism does not allow a perfect balancing in such a way. The different nature of motions that govern the piston displacement and crank rotation imply that a counter mass can only statically balance the mechanism. An ideal dynamic balancing cannot be achieved this way. Therefore in this paper the excitations that act on the mechanism are split by the nature of motion that generates them and balanced accordingly. Two motions are defined, respectively the motion of the piston and the motion of the crank. The inertia force associated with the crank motion is balanced by building a dynamically equivalent system around the axis of the crankshaft while the excitation associated with the motion of the piston is balanced with a progressive spring with two rates.

APA, Harvard, Vancouver, ISO, and other styles

5

Burkov, P. V., S. P. Burkova, and V. Yu Timofeev. "Justifying a Method of Balancing Crank-and-Rod Mechanism of Mining Roadheader." Applied Mechanics and Materials 682 (October 2014): 270–75. http://dx.doi.org/10.4028/www.scientific.net/amm.682.270.

Full text

Abstract:

The authors prove the importance of research aimed at designing crank-and-rod mechanism of a roadheader. Advantages, design and technological characteristics of a roadheader feeder are determined. The authors suggest technological solutions of crank-and-rod mechanism design.

APA, Harvard, Vancouver, ISO, and other styles

6

Chainov, N. D., and P. R. Vallejo Maldonado. "Balancing the Moments of a VR5 Engine Taking into Account a Desaxial Crank Mechanism and Cylinder Camber Angle." Proceedings of Higher Educational Institutions. Маchine Building, no. 05 (722) (May 2020): 41–49. http://dx.doi.org/10.18698/0536-1044-2020-5-41-49.

Full text

Abstract:

Automobile piston engines with a desaxial crank mechanism are characterized by increased vibration activity associated with a cyclic change in the pressure of the working fluid in the cylinders and inertial forces associated with the reciprocating and rotational movement of the crank mechanism moving masses. Properties reflecting the consumer properties of the engine, including acoustic characteristics, are largely determined by the level of vibration of the structural elements of the desaxial crank mechanism and, first of all, by the balance of inertial forces during operation. The article discusses balancing of five-cylinder four-stroke VR type engines with a desaxial crank mechanism and uniform flash alternation. The authors introduce formulas that can be used to determine and analyze moments of the inertia forces of the reciprocating and rotating masses arising in VR5 engines at the set values of the cylinder camber angle, the ratio of the crank radius to the connecting rod length and the relative displacement of the cylinder axis. A method of balancing the moments of inertia forces of the reciprocating and rotating masses is proposed.

APA, Harvard, Vancouver, ISO, and other styles

7

Bai, Jian Yu, Zai He Yu, Senlin Tong, and Di Zheng. "Optimal Design Based on Method of Linearly Independent Vectors for Weight-Balancing Blocks in Ultra-High-Speed Pressing Machine." Advanced Materials Research 225-226 (April 2011): 97–102. http://dx.doi.org/10.4028/www.scientific.net/amr.225-226.97.

Full text

Abstract:

This paper first establishes formulas for the total momentum of a crank-slider mechanism with weight-balancing block via kinematic analysis, and then proposes an approach for completely balancing out the inertia forces within the mechanism based the method of linearly independent vectors. The proposed approach can be used to optimize the design of weight-balancing block used in pressing machine. The approach has been verified by computer simulations.

APA, Harvard, Vancouver, ISO, and other styles

8

ANAMI, Keiko, and Junya KAWAMATA. "Perfect Balancing Design with Sub-Crank Mechanism in Scroll Compressors." Proceedings of Mechanical Engineering Congress, Japan 2020 (2020): S11404. http://dx.doi.org/10.1299/jsmemecj.2020.s11404.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

He, Zhao Xia, and Qing Tao Liu. "Synthetical Dynamic Balancing of Mechanism Based on Optimization Simulation." Advanced Materials Research 774-776 (September 2013): 35–38. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.35.

Full text

Abstract:

The dynamic balancing of crank-slider mechanism was achieved with the guidance of the computer aided simulation-based optimization technique. Taking the reaction force of the rotary pair of connecting links and the input torque as optimization objective functions, the design optimization process was carried out with random-direction optimization method after determining the sensitive independent variables and their variation ranges based on the synthetical planning. The modal damping parameter of simulation model was optimized with the guidance of dynamic balancing experiment and the accuracy of simulation was also improved. Finally, by comparing the results from experiment and from optimization simulation, it is shown that optimization simulation could facilitate to instruct and implement the synthetical dynamic balancing for four-bar mechanism.

APA, Harvard, Vancouver, ISO, and other styles

10

Sinatra, Rosario, and Jorge Angeles. "A Novel Approach to the Teaching of Planar Mechanism Dynamics – A Case Study." International Journal of Mechanical Engineering Education 31, no. 3 (July 2003): 201–14. http://dx.doi.org/10.7227/ijmee.31.3.2.

Full text

Abstract:

We propose a novel approach to the teaching of undergraduate planar mechanism dynamics. To illustrate the approach, we use a case study, the dynamics of the planar slider-crank mechanism. In this case study, we make extensive use of an operator representing in two-dimensional form the cross-product of two vectors. Furthermore, by using the natural orthogonal complement, introduced elsewhere, we produce a systematic procedure to derive a dynamic model of the same class of mechanism. Subsequently, we illustrate how, with the use of the aforementioned operator, the dynamic balancing of this mechanism, as first proposed by Berkof and Lowen for RRRR planar linkages, and extended by Bagci to the slider-crank mechanism, simplifies tremendously.

APA, Harvard, Vancouver, ISO, and other styles

11

Emdadi, Habib, Mahsa Yazdanian, Mir Mohammad Ettefagh, and Mohammad-Reza Feizi Derakhshi. "Double Four-Bar Crank-Slider Mechanism Dynamic Balancing by Meta-Heuristic Algorithms." International Journal of Artificial Intelligence & Applications 4, no. 5 (September 30, 2013): 1–18. http://dx.doi.org/10.5121/ijaia.2013.4501.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Chaudhary, Kailash, and Himanshu Chaudhary. "Optimum Balancing of Slider-crank Mechanism Using Equimomental System of Point-masses." Procedia Technology 14 (2014): 35–42. http://dx.doi.org/10.1016/j.protcy.2014.08.006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

KOZAK, Władysław. "Crank and rocker piston assembly." Combustion Engines 152, no. 1 (February 1, 2013): 10–27. http://dx.doi.org/10.19206/ce-117009.

Full text

Abstract:

The paper presents a qualitative analysis of a crank-and-rocker piston mechanism. In comparison to a conventional piston assembly the mechanism is composed of more elements necessary to convert the reciprocating motion of the pistons to rotary motion of the crankshaft. A greater complexity of the system is balanced by a greater number of advantages particularly visible in the module, composed of four cylinders coupled by the rocker with a single crank journal. A greater number of elements allow an obtainment of better functional flexibility of the mechanism, particularly in terms of the piston movement. This feature can be used to control the course of the engine torque, the heat losses to the cooling system, the reduction of the piston pressure on the cylinder liners (friction and mechanical losses) as well as variation of the compression ratio easily performed during engine operation. The natural characteristics of the four-cylinder module have been highlighted through an internal balancing of the mass forces. The analysis does not contain the elements of design. The design parameters in the analysis are random. They were selected to highlight the properties of the design and show negative and positive features. The relations and remarks included in the paper may turn out useful when designing the mechanism.

APA, Harvard, Vancouver, ISO, and other styles

14

Yin, Bi Feng, Jiang Guang He, Yi Xu, and Yong Qiang Li. "The Novel Design of Full-Balancing Mechanism for Single-Cylinder Diesel Engine." Applied Mechanics and Materials 37-38 (November 2010): 1520–24. http://dx.doi.org/10.4028/www.scientific.net/amm.37-38.1520.

Full text

Abstract:

One new sliding-block balancing mechanism is proposed for the single-cylinder diesel engine. In the new mechanism, the sliding block is installed against the engine piston. The reciprocation trajectory of sliding block is collinear with the piston trajectory, while sliding block and piston move in the opposite direction, just like two opposite crank connecting rods. The new mechanism includes the crankshaft, connecting rod ring, the slider and the guide components. Through the bearing, connecting rod is installed in the eccentric journal of the crankshaft. The circular connecting rod is in the accurate guiding surface of the slider; and the guide pins are in the guide groove. Guide rod connects with supporting shaft through the guide hole of the slide. The optimized parameters for the sliding block show that the ratio of eccentric distance of the eccentric journal to the length of the connecting rod is equal to the ratio of crank radius to connecting rod length. The appropriate results can balance both the centrifugal inertia force and the reciprocating inertia force generated by piston group. Even the complete balance of the first and second-order reciprocating inertia forces can be obtained, which can reduce the vibration and noise of diesel engine.

APA, Harvard, Vancouver, ISO, and other styles

15

Shin, J. K., and B. M. Kwak. "A Design Method for Reducing the Effects of Clearances at Revolute Joints." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 199, no. 2 (April 1985): 153–58. http://dx.doi.org/10.1243/pime_proc_1985_199_106_02.

Full text

Abstract:

A method for designing a mechanism which is free of contact loss in clearance connections is developed. Only revolute joints are considered as possible clearance joints. Earles and Wu's empirical formula has been used for defining a perfect joint or contact loss free joint. A general theory for conditions of a perfect joint has been derived in terms of the mechanical energy and the kinematic properties of the joint. This general theory was applied to a slider crank mechanism and it was shown that designing a perfect joint is theoretically possible through balancing by a non-linear spring. Further it was shown that this technique gives a practical guide for balancing a mechanism with linear springs to reduce the possibility of contact loss in clearance joints.

APA, Harvard, Vancouver, ISO, and other styles

16

Chaudhary, Kailash, and Himanshu Chaudhary. "Dynamic balancing and link shape synthesis of slider-crank mechanism for multi-cylinder engines." International Journal of Mechanisms and Robotic Systems 2, no. 3/4 (2015): 254. http://dx.doi.org/10.1504/ijmrs.2015.074118.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Ren, Tao, Dong Sheng Liao, Wen Tao Qu, and Wen Sun. "Slider-Crank Type Cluster Wells Pumping Motion and Dynamics Analysis." Advanced Materials Research 479-481 (February 2012): 808–12. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.808.

Full text

Abstract:

At present, one pumping corresponding one oil well exploitation pattern has been unable to meet the cluster well oil recovery characteristics of muti-well platform. Single-well pumping unit’s torque factor is too large, resulting in the peak of the net torque of the crank shaft is too large and the fluctuation is too large, which lead to the increasing of the pumping consumption. Slider-crank type cluster well pumping unit can realize a pumping unit driving several wells pumping and make use of the principle of rod load balancing each other, no need of special balance block, having good balance effect, the crankshaft net torque having smaller peak and energy saving effect is obvious .Proposing the cluster well pumping unit design program based on slider- crank type mechanism, establishing the corresponding motion and dynamic analysis equation and analyzing the performance of slider- crank type cluster well pumping unit based on the actual load conditions.

APA, Harvard, Vancouver, ISO, and other styles

18

Singh, Prem, and Himanshu Chaudhary. "Dynamic balancing of cleaning unit used in agricultural thresher using Jaya algorithm." World Journal of Engineering 16, no. 6 (December 2, 2019): 702–11. http://dx.doi.org/10.1108/wje-02-2019-0048.

Full text

Abstract:

Purpose The purpose of this paper is to propose the dynamically balanced mechanism for cleaning unit used in the agricultural thresher machine using the system of point masses. Design/methodology/approach The cleaning unit works on crank-rocker Grashof mechanism. To balance the mechanism, the shaking forces and shaking moments are minimized by optimizing the mass distribution of links using the dynamically equivalent system of point masses. The point mass parameters are taken as the design variables. Then, the optimization problem is solved using 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. Originality/value The proposed methodology is tested through the standard four-bar mechanism taken from literature and also applied to the existing cleaning mechanism of the thresher machine. It is observed that the Jaya algorithm is computationally more efficient than the GA. The dynamic analysis of the proposed mechanism is simulated using ADAMS software.

APA, Harvard, Vancouver, ISO, and other styles

19

Chiou, S.-T., and J.-C. Tzou. "On the shaft locations of two contra-rotating counterweights for balancing spatial mechanisms." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 211, no. 8 (August 1, 1997): 567–78. http://dx.doi.org/10.1243/0954406981521952.

Full text

Abstract:

It has been shown in a previous work that a frequency term of the shaking force of spatial mechanisms, whose hodograph is proved to be an ellipse, can be eliminated by a pair of contrarotating counterweights. In this work, it is found that the relevant frequency term of the shaking moment is minimized if the balancing shafts are coaxial at the centre of a family of ellipsoids, called isomomental ellipsoids, with respect to (w.r.t.) any point on an ellipsoid, as is also the root mean square (r.m.s.) of the relevant frequency term of the shaking moment. It can also be minimized even though the location of either shaft, but not both, is chosen arbitrarily on a plane. The location of the second shaft is then determinate. In order to locate the centre, a derivation for the theory of isomomental ellipsoids of a frequency term of the shaking moment of spatial mechanisms is given. It is shown that the r.m.s. of a frequency term shaking moment of a spatial mechanism w.r.t. the concentric centre of the isomomental ellipsoids is the minimum. Examples of a seven-link 7-R spatial linkage and a spatial slider-crank mechanism are included.

APA, Harvard, Vancouver, ISO, and other styles

20

Kovacs, Balazs A., and Tamas Insperger. "Comparison of Pixel-based Position Input and Direct Acceleration Input for Virtual Stick Balancing Tests." Periodica Polytechnica Mechanical Engineering 64, no. 2 (April 24, 2020): 120–27. http://dx.doi.org/10.3311/ppme.13507.

Full text

Abstract:

A virtual stick balancing environment is developed using a computer mouse as input device. The development process is presented both on the hardware and software level. Two possible concepts are suggested to obtain the acceleration of the input device: discrete differentiation of the cursor position measured in pixels on the screen and by direct measurements via an Inertial Measurement Unit (IMU). The comparison of the inputs is carried out with test measurements using a crank mechanism. The measured signals are compared to the prescribed motion of the mechanism and it is shown that the IMU-based input signal fits better to the prescribed motion than the pixel-based input signal. The pixel-based input can also be applied after additional filtering, but this presents an extra computational delay in the feedback loop.

APA, Harvard, Vancouver, ISO, and other styles

21

Arakelian, Vigen, and Sébastien Briot. "Simultaneous inertia force/moment balancing and torque compensation of slider-crank mechanisms." Mechanics Research Communications 37, no. 2 (March 2010): 265–69. http://dx.doi.org/10.1016/j.mechrescom.2009.11.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Albaghdadi, Anwr M., Masri B. Baharom, and Shaharin A. Sualiman. "Balancing and Simulation of a Double Crank-Rocker Engine Model for Optimum Reduction of Shaking Forces and Shaking Moments." Mathematical Modelling of Engineering Problems 8, no. 2 (April 28, 2021): 237–45. http://dx.doi.org/10.18280/mmep.080210.

Full text

Abstract:

In this paper, a new configuration of Crank-Rocker (CR) model has been proposed by duplicating its mechanism. The method has been implemented to overcome vibration problem on a single-piston Crank-Rocker engine caused by system unbalance. The new method suggests combining conventional method of adding counterweights to reduce shaking forces and eliminating the inertial moments on system by implementing the new layout. A dynamic study of the new model is presented, then the objective function is derived and implemented to perform the optimization process. Related design variables and system constraints are introduced to determine attached counterweights optimized characteristics. For results validation, the simulation, dynamic analysis, and optimization process were conducted using ADAMS VIEW® software. The output results were presented and discussed to verify the validity of the suggested method. It was noticed that the method was very effective and has managed to reduce the total shaking forces by about 91%, shaking moment by about 66%; and the driving torque by 27%.

APA, Harvard, Vancouver, ISO, and other styles

23

Albaghdadi, A. M., M. B. Baharom, and S. A. Sulaiman. "Tri-planar balancing optimization of a double crank-rocker mechanism for shaking forces and shaking moments reduction." Proceedings of the Estonian Academy of Sciences 70, no. 3 (2021): 286. http://dx.doi.org/10.3176/proc.2021.3.07.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Demeulenaere, Bram, Erwin Aertbeliën, Myriam Verschuure, Jan Swevers, and Joris De Schutter. "Ultimate Limits for Counterweight Balancing of Crank-Rocker Four-Bar Linkages." Journal of Mechanical Design 128, no. 6 (January 9, 2006): 1272–84. http://dx.doi.org/10.1115/1.2337313.

Full text

Abstract:

This paper focuses on reducing the dynamic reactions (shaking force, shaking moment, and driving torque) of planar crank-rocker four-bars through counterweight addition. Determining the counterweight mass parameters constitutes a nonlinear optimization problem, which suffers from local optima. This paper, however, proves that it can be reformulated as a convex program, that is, a nonlinear optimization problem of which any local optimum is also globally optimal. Because of this unique property, it is possible to investigate (and by virtue of the guaranteed global optimum, in fact prove) the ultimate limits of counterweight balancing. In a first example a design procedure is presented that is based on graphically representing the ultimate limits in design charts. A second example illustrates the versatility and power of the convex optimization framework by reformulating an earlier counterweight balancing method as a convex program and providing improved numerical results for it.

APA, Harvard, Vancouver, ISO, and other styles

25

Singh, Prem, and Himanshu Chaudhary. "Dynamic balancing of the cleaning unit used in agricultural thresher using a non-dominated sorting Jaya algorithm." Engineering Computations 37, no. 5 (January 3, 2020): 1849–64. http://dx.doi.org/10.1108/ec-03-2019-0087.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

26

Skachkova, L. A., E. S. Isaeva, A. I. Feh, and V. I. Safyannikova. "Visualization and analysis of balancing of the slider-crank mechanism on an elastic foundation in the mining tunneling machines." Journal of Physics: Conference Series 803 (January 2017): 012151. http://dx.doi.org/10.1088/1742-6596/803/1/012151.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

KANG, Y., Y. P. CHANG, M. H. TSENG, P. H. TANG, and Y. F. CHANG. "A MODIFIED APPROACH BASED ON INFLUENCE COEFFICIENT METHOD FOR BALANCING CRANK-SHAFTS." Journal of Sound and Vibration 234, no. 2 (July 2000): 277–96. http://dx.doi.org/10.1006/jsvi.1999.2873.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Tang, Zhong, Yu Li, Yuepeng Zhou, and Haotian Zhang. "Inertial Vibration Characteristics of Track Chassis Caused by Reciprocating Motion of Crank Slider." Shock and Vibration 2019 (March 28, 2019): 1–18. http://dx.doi.org/10.1155/2019/4378138.

Full text

Abstract:

The crank slider of self-propelled baling machinery is used for straw compression on the crawler chassis structure. During the reciprocating motion of the crank slider, the inertia of the piston will cause a greater shock to baling machinery. In this paper, the inertia of the crank slider piston was analyzed on crawler chassis. The model and parameter values of the inertia force balance of the crank slider were established by the complete balance method. The test mode was used to analyze the natural mode and mode shape of the piston. The vertical vibration amplitudes of the crawler chassis beam were tested and used to reflect the specific inertial vibration characteristics of the self-propelled baling machinery caused by the reciprocating motion of the piston. The inertial vibration caused by the reciprocating motion of the crank slider was eliminated by the method of weighting the tail of the track beam. Results indicated that the self-balancing counterweight of the crank slider was 261.82 kg. The six natural modal frequencies of the piston were 4.62, 17.26, 29.82, 63.85, 83.73, and 141.58 Hz, respectively. During the reciprocating motion of the piston, the first-order frequency of the piston would be excited by feeding auger excitation frequency of 3.77 Hz and may cause resonance. And, the vertical vibrates of track beam was based on the measuring point 6 as a fulcrum. Adding a counterweight of 265 kg at the end of the track chassis would completely eliminate the self-propelled baling machinery inertial vibration caused by the reciprocating motion of the crank slider.

APA, Harvard, Vancouver, ISO, and other styles

29

Todorov, Iliya. "SYNTHESIS OF STRUCTURAL SCHEMES OF LINKAGE MECHANISMS FOR PORTAL Gantry CRANE JIB SYSTEM." International Conference on Technics, Technologies and Education, ICTTE 2019 (2019): 606–12. http://dx.doi.org/10.15547/ictte.2019.08.088.

Full text

Abstract:

The most common crane structural scheme used in the practice includes 4-link guiding mechanism and 4-link balancing mechanism. Some special crane construction as such designed by Kranbau – Eberswalde contains a 6-link balancing mechanism with structural scheme obtained by conjunction of 2 consecutive 4-hinged units. Similar construction is a subject of research, related to synthesis of 6-links mechanism during designing of new crane constructions. Another paperwork presents an approach for development of jib system of existing gantry crane type. Such approach relates to keep both – jib and arm without changes in their mass, shape and loading conditions. Still another paperwork revealing an approach for synthesis of existing gantry crane allowing minor structural changes by addition of small-sized links to the scheme of balance mechanism without changes in the structure of jib, arm and frame. According Assur’s classification the number of links in each mechanism would be theoretically unlimited although it would cause significant difficulties during production of such systems. Practically, not any crane constructions designed with 8-link or 10-link structural scheme exists. At other side, increasing the number of links is a precondition to more accurate dimensional movement of balance unit. Structural schemes for plain linkage mechanisms appropriate for application in a portal crane are being synthesized. At the synthesis the limitations of the links must be no more than ten and they save the configuration of the crane’s mechanism that is mostly used in practice. Potential applications of 4 different structural schemes indicated as Н1У1, Н2У1, Н1У2 and Н2У2, synthesized by a practical example, are being appraised. Results for alteration of the reduced moment to jib from weights of links of jib system depending on the range of jib with and without useful load are obtained.

APA, Harvard, Vancouver, ISO, and other styles

30

Khairul, H. Kamarudin, Ahmad Zaidi Ahmad Mujahid, Abdullah Shohaimi, Shah Md Fuad, Thanakodi Suresh, Husain Firdaus, Jamil Hariz, Wan Mat Wan Ali, and Othman Mohd Zaid. "Visual Inspection on Failure Surface of Constant Force Spring (CFS) Fitted in a Counterweight Balancing Mechanism." Materials Science Forum 819 (June 2015): 461–66. http://dx.doi.org/10.4028/www.scientific.net/msf.819.461.

Full text

Abstract:

A failure characteristic of a fractured constant force spring (CFS) or flat spiral spring fitted in a counterweight balancing mechanism is investigated via series of visual experimentation. Macroscopic examination reveals several beach marks that shows direction of fatigue crack propagation has indicated that the CFS fracture had initiated and propagated due to fatigue from an inner surface origin. Macro cracks resulted from stress concentration were also visible on grain boundaries. The crack was initiated at the center of the CFS which later propagated in the direction perpendicular to the applied cyclic load and finally fractured when it can no longer sustain the applied cyclic load. Inspection via Scanning Electron Microscopy (SEM) has indicatedsign of fatigue striations perpendicular to the fracture propagation which is a characteristic of fatigue failure mechanism. Examination of the fractured surface also pointed porosities that reflects points of crack initiation. Multiple crack initiation points identified shows that the fracture was a result of high stress or high stress concentration.

APA, Harvard, Vancouver, ISO, and other styles

31

Liu, Xiao-Ang, Wen-Bin Shangguan, Zhao-Ping Lv, Waizuddin Ahmed, and Weidong Zhu. "A study on optimization method of a powertrain mounting system with a three-cylinder engine." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 12 (February 15, 2016): 2235–52. http://dx.doi.org/10.1177/0954406216631004.

Full text

Abstract:

Compared with unbalance forces and moments of four- and six-cylinder engines, forces and moments applied to the engine block from a three-cylinder engine are large and the mechanism for balancing the unbalance forces are complex. So design of a mounting system for the powertrain with a three-cylinder engine is more challenging. This paper presents the analytical methods for obtaining the unbalance forces and moments applied to the engine block for a three-cylinder engine with or without balance measures, and develops a design methodology for the Powertrain Mounting System with a three-cylinder engine. The unbalance forces and moments generated by cylinders, crank and connecting rod mechanisms and applied to the engine block are analyzed firstly. Then, three balance methods for reducing the forces and moments applied to the engine block are proposed and discussed. Three balance measures are described and analyzed. The methods for estimating forces and moments applied to the engine block under the three balance measures are developed and compared. Thirdly, an optimization method is proposed to estimate mount stiffness based on minimization of mount forces transmitted to the car body or sub-frame, along with meeting requirements for placing natural frequencies of the powertrain in prescribed ranges and those for maximizing modal energy distributions of the powertrain in six directions. An example is given to validate the calculation methods and design philosophy for the mounting system of a powertrain with a three-cylinder engine.

APA, Harvard, Vancouver, ISO, and other styles

32

KOMURA, Hirotaka, Gen ENDO, and Koichi SUZUMORI. "Development of Novel Crank Wheel Mechanism ”Eccentric Crank Rover”." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2016 (2016): 2A2–08a1. http://dx.doi.org/10.1299/jsmermd.2016.2a2-08a1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Qian, Yu, Yi Cao, Yuan Wei Liu, and Hui Zhou. "Forward Kinematics Simulation Analysis of Slider-Crank Mechanism." Advanced Materials Research 308-310 (August 2011): 1855–59. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.1855.

Full text

Abstract:

This paper mainly addressed the kinematics simulation of the Slider-Crank mechanism. After proposing a mathematical model for the forward displacement of the slider-crank mechanism, the mathematical models for the forward velocity and acceleration of the slider-crank mechanism are constructed, respectively and the simulation models for the forward kinematics of the slider-crank mechanism are constituted in the Matlab/Simulink simulation platform. Finally the forward kinematics simulation of the slider-crank mechanism was successfully accomplished based on Matlab/Simulink. Examples of the simulation for the forward kinematics of a slider-crank mechanism are given to demonstrate the above-mentioned theoretical results.

APA, Harvard, Vancouver, ISO, and other styles

34

Al-Sabeeh, A. K. "Double Crank External Geneva Mechanism." Journal of Mechanical Design 115, no. 3 (September 1, 1993): 666–70. http://dx.doi.org/10.1115/1.2919242.

Full text

Abstract:

A designer specified motion characteristics can be obtained using the double crank external Geneva mechanism presented in this work. This mechanism basically consists of double cranks and double curved slots that work together in generating the desired output motion. In other words, the profiles of the slots are defined based on the specified output motion. This feature opens the door for big motion improvements, such as minimizing the maximum acceleration and eliminating infinite jerk. Furthermore, it allows for stepping angles larger than 120 deg (the upper limit for simple Geneva mechanism) and even operates at smaller overall pressure angle. In this paper, the equations defining the slot profiles for some desired output motion are derived. The expression for the pressure angle as a function of the crank displacement angle is obtained. The equations are put into application by an example design of double slotted replacement Geneva mechanism, showing the applicability of the approach and the improvement gained in reducing the pressure angle.

APA, Harvard, Vancouver, ISO, and other styles

35

Lee, Heow-Pueh. "Dynamics of a Flexible Rod in a Quick Return Mechanism." Journal of Mechanical Design 116, no. 1 (March 1, 1994): 70–74. http://dx.doi.org/10.1115/1.2919379.

Full text

Abstract:

The equations of motion in matrix form are formulated for a flexible rod in a quick return mechanism using Hamilton’s principle and the assumed mode method. The rod is considered as an Euler beam. The crank is assumed to be rigid and rotating at a constant angular speed. The translating-rotating joint connecting the crank to the flexible rod is assumed to be a frictionless moving point support for the flexible rod. This support is regarded as a very stiff spring acting on the rotating flexible rod. Results of numerical simulations are presented for various prescribed crank positions, crank lengths, and crank speeds.

APA, Harvard, Vancouver, ISO, and other styles

36

Ren, Tao, Wen Tao Qu, and Wen Sun. "Dynamics Study of a Dynamic Balancing Linkage with Small Fluctuations in Load." Applied Mechanics and Materials 86 (August 2011): 176–79. http://dx.doi.org/10.4028/www.scientific.net/amm.86.176.

Full text

Abstract:

The fluctuations of the net crank torque on crankshaft remain the main reasons of both higher motor input power and lower efficiency. The later results in high system energy cost. The paper presents a novel linkage model based on rocking-bar linkage. The linkage demonstrates a smaller fluctuation in net crank torque. Therefore the motor efficiency is improved and input power is reduced greatly. The new model enhances the system energy saving. By establishing the linkage dynamics models, analyses contrasting the effects of energy saving were performed under the actual load conditions.

APA, Harvard, Vancouver, ISO, and other styles

37

Wu, Ying, and Xu Zhou. "Simulation Research of Six-Bar Slider-Crank Mechanism." Advanced Materials Research 655-657 (January 2013): 568–72. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.568.

Full text

Abstract:

For being convenient for researching the force transmission characteristic and the improvement and use of six-bar slider-crank mechanism, for improving the dynamic work efficiency, for reducing energy consumption, the three-dimensional solid model of the mechanism was established with ADAMS. Each part of the model in ADAMS was set up. Simulation analysis on the working process of the mechanism was achieved. The structure optimization parameters of the mechanism were obtained. The result proves that the locations of revolute joint of rocker and frame, the locations of revolute joint of link and block, the vertical location of revolute joint of upper link and rocker, the horizontal locations of revolute joint of upper link and link are almost no impact on the driving torque of crank. The locations of revolute joint of crank and upper link, the horizontal location of revolute joint of upper link and rocker, the vertical location of revolute joint of upper link and link have less impact on the driving torque of crank. The locations of revolute joint of crank and frame have greater impact on the maximum driving torque of crank.

APA, Harvard, Vancouver, ISO, and other styles

38

Bodine, Albert G. "Sonic drill employing orbiting crank mechanism." Journal of the Acoustical Society of America 87, no. 5 (May 1990): 2267. http://dx.doi.org/10.1121/1.399154.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Kukuča, Pavol, Dalibor Barta, Robert Labuda, and Tsvetomir Gechev. "Engine with unconventional crank mechanism FIK1." MATEC Web of Conferences 244 (2018): 03004. http://dx.doi.org/10.1051/matecconf/201824403004.

Full text

Abstract:

The geometry and kinematics of unconventional engine mechanism FIK1 are described in the paper. Transformation of the piston linear movement to rotational movement is done by a swinging board, a baseboard and a crankshaft. The paper describes the trajectory and acceleration of an observed point on the swinging board in all three planes as well as the kinematics of the piston movement. The principle of the unconventional mechanism FIK1 is protected by patents No. 283742 and No. 283743. A mathematical model of the mechanism and some significant results are presented.

APA, Harvard, Vancouver, ISO, and other styles

40

Hwang, W.-M., and Y.-S. Fan. "Coordination of two crank angles and two acceleration poles for a slider crank mechanism using parametric equations." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 222, no. 3 (March 1, 2008): 483–91. http://dx.doi.org/10.1243/09544062jmes624.

Full text

Abstract:

The current article presents the parametric equations for the synthesis of a slider crank mechanism with a coupler point passing through two specified acceleration poles that accord with two specified crank angles. The parametric equations for the coordinates of the acceleration pole for the coupler with respect to the frame are shown to be functions of only the geometric configuration of the slider crank mechanism driven by the crank with a constant rotational speed. Moreover, a necessary condition for the crank angular interval corresponding to the two acceleration poles on a coupler curve generated by a slider crank mechanism is investigated. The desired coupler point of a given mechanism passing through two acceleration poles should be a double point on the locus of the acceleration pole described on the coupler plane. The transformed parametric equations on the fixed plane are then applied to synthesize the desired mechanism with a coupler point passing through two specified acceleration poles that accord with two specified crank angles.

APA, Harvard, Vancouver, ISO, and other styles

41

Gao, Guang Di, Xin Sheng Bi, and Rong Guang Zhu. "Simulation of Processing Tomato Fruit-Stem Separation Based on Double Crank Mechanism." Advanced Materials Research 588-589 (November 2012): 1269–73. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.1269.

Full text

Abstract:

In this paper, double crank mechanism is put forward to achieve separation of the processing tomato fruit-stem on the basis of analysis of the existing separation mechanism kinematic characteristics, and the rod length ratio of the desired motion characteristics has been gotten by virtual simulation platform based on ADAMS, and the rod lengths of the double crank mechanism ultimately determined are as follows, driving crank is 148mm, active crank is 178mm, link is 222mm, and driven crank is 200mm on the basis of the testing determination of the maturity processing tomato fruit-stem separation force. It is able to meet the fruit and stem separation requirements when the angular velocity of driven crank is 60r/min. It can provide a theoretical basis for engineering practice.

APA, Harvard, Vancouver, ISO, and other styles

42

Han, Z. G., and Qing Jian Liu. "Dynamic Analysis on Crank-Slider Mechanism of Reciprocating Pump." Materials Science Forum 697-698 (September 2011): 676–80. http://dx.doi.org/10.4028/www.scientific.net/msf.697-698.676.

Full text

Abstract:

The crank-slider mechanism is the key component in reciprocating pumps. With the increase of the rotational speed of the crank-slider mechanism, the vibration and working noise of reciprocating pumps increase. Based on the multi-body dynamics theory, the dynamic model of the crank-slider mechanism of reciprocating pumps is proposed. A numerical example is given and the validity of the procedure developed here is demonstrated by analyzing the dynamic behavior of a typical crank-slider mechanism of the reciprocating pump. The model can well simulate the dynamic response of the mechanism, which can enable designers to obtain required information on the analysis and design of reciprocating pumps.

APA, Harvard, Vancouver, ISO, and other styles

43

Fernandez, Victor. "Characteristics of Slider Crank Mechanism Using Modeling Simulations." ACMIT Proceedings 4, no. 1 (March 19, 2017): 127–35. http://dx.doi.org/10.33555/acmit.v4i1.67.

Full text

Abstract:

This document will analyze the different effects of the length and the angular velocity affecting theperformance of the slider crank system. The performance of the slider crank system is simulated and shownusing MATLAB with reference of the model represented by a mathematical formula. The result of thesimulation is represented by several graphs, showing the relation of the length and angular velocity of therotary motion of the slider crank mechanism and the angle generated by the translational motion of theslider.

APA, Harvard, Vancouver, ISO, and other styles

44

Karkoub, M. A., and M. Zribi. "Active damping of the elastodynamic vibrations of a flexible slider-crank mechanism using an energy approach." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 215, no. 1 (March 1, 2001): 7–20. http://dx.doi.org/10.1243/1464419011544303.

Full text

Abstract:

In this paper, the problem of active damping of the elastodynamic vibrations of a flexible slider-crank mechanism is addressed. The slider-crank mechanism is such that the connecting rod is flexible and the crank link is rigid. The slider-crank mechanism system is underactuated since the connecting rod is not directly controlled. A dynamic model for the slider-crank mechanism is derived using the Hamiltonian principle. Then, a control scheme based on an energy approach is proposed. The control scheme uses the passivity of the system to eliminate the vibrations of the flexible connecting rod. Simulation results are given to illustrate the theoretical developments.

APA, Harvard, Vancouver, ISO, and other styles

45

Tomić, Miša, Miloš Milošević, Nevena Tomić, Nenad D. Pavlović, and Vukašin Pavlović. "REMOTE CONTROL OF THE MECHATRONIC REDESIGNED SLIDER-CRANK MECHANISM IN SERVICE." Facta Universitatis, Series: Mechanical Engineering 15, no. 2 (August 2, 2017): 257. http://dx.doi.org/10.22190/fume170510013t.

Full text

Abstract:

Slider-crank mechanisms are used in many machines where there is a need to transform rotary motion into translation, and vice versa. Implementation of the control into a mechanical assembly of the slider-crank mechanism offers a wide range of applications of such controlled mechanism in mechatronic systems. This paper shows an example of the remote control of the angular velocity of the crank in a mechatronic redesigned slider-crank mechanism in order to achieve the desired motion of the slider. The remote control is achieved over the Internet connection and the appropriate software which is executed in the user’s internet browser. The aim of this paper is to present the applied control algorithm as well as to explain advantages of the possibility to remotely run a mechatronic redesigned slider-crank mechanism in service. This is done through an example of using a controlled slider-crank mechanism in a remote laboratory experiment.

APA, Harvard, Vancouver, ISO, and other styles

46

Xie, Liang Xi, Zhi Xiang Tian, Jian Yi Kong, Guo Zhang Jiang, and Gong Fa Li. "Kinematic Analysis of a Spatial 6-Bar Linkage Mechanism." Applied Mechanics and Materials 496-500 (January 2014): 831–35. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.831.

Full text

Abstract:

The door operator in metallurgical equipment is a spatial 6-bar linkage mechanism. The numerical model of motion and force of the mechanism was developed and the numerical solution was applied. A computer simulation was implemented. There is a high level of consistency between the solution and simulation. The torques required on driving crank have been studied. The influences of the self-lock conditions on the crank length and con-rod length have been explored. The effects of the length of crank and con-rode on the needed maximal torques of the crank have been studied, too. And the kinematics analysis attributes the lightening design of the slider structure on the basis of considering the sliders rigidness and intensity.

APA, Harvard, Vancouver, ISO, and other styles

47

Bituev, I. K. "Designing Self-Balanced Spatial Mechanisms." Applied Mechanics and Materials 770 (June 2015): 328–32. http://dx.doi.org/10.4028/www.scientific.net/amm.770.328.

Full text

Abstract:

This paper summarises the results obtained from a study of the conditions required to achieve self-balanced mechanical systems. The design self-balanced systems composed of single-loop spatial mechanisms with a common drive shaft, is reviewed. The paper explains how the problems are solved by selecting the relative angles of the mechanism's cranks, their number and mutual arrangement. The resulting self-balancing criteria enable the construction of spatial mechanical systems with predetermined levels of residual imbalance.

APA, Harvard, Vancouver, ISO, and other styles

48

Chang, De Gong, and Cun Sheng Zhang. "Mechanical System Dynamics Simulation of Crank Linkage Mechanism Based on Pro/E." Advanced Materials Research 295-297 (July 2011): 2548–51. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.2548.

Full text

Abstract:

The simulation analysis and research on crank linkage mechanism, which is the core part of the engine, are of important significance. Based on related theory, this paper introduces a simulation analysis method for crank linkage mechanism, which is using Pro/E. First of all, the 3D model of the mechanism is build; all the components are modeled and assembled. Then dynamic simulation for the crank linkage mechanism by using PRO/Mechanism is carried on, the result of characteristics of motion, stress, etc of the mechanism are shown. A more effective method about the simulation analysis of crank linkage mechanism is introduced in this paper.

APA, Harvard, Vancouver, ISO, and other styles

49

Yuqi, Wang, and Cao Jujiang. "Study about the New Mechanism Crank-group Driving Mechanism." Journal of Applied Sciences 13, no. 22 (November 1, 2013): 5192–97. http://dx.doi.org/10.3923/jas.2013.5192.5197.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Wang, Yu. "Kinematic Analysis and Optimization Design of an Eccentric Crank Slide-Block Mechanism Based on ADAMS." Advanced Materials Research 189-193 (February 2011): 997–1000. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.997.

Full text

Abstract:

Operating principle and motion characteristics of an eccentric crank slide-block mechanism are analyzed. A virtual prototype model of the eccentric crank slide-block mechanism is set up based on ADAMS,a simulation software. The kinematics analysis of the eccentric crank slide-block mechanism,it is given.Under the premise of meeting the requirements of slide stroke and travel velocity-ratio coefficient, based on ADAMS, each component size of the eccentric crank slide-block mechanism with best pressure angle (α max ) min can be easily obtained. The equations and the calculations can be used in engineering practice.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!