Relevant bibliographies by topics / Drawbar characteristics

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Drawbar characteristics'

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 lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Drawbar characteristics.'

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.

Journal articles on the topic "Drawbar characteristics"

1

Šmerda, Tomáš, and František Bauer. "Effect of the load of drive axles and high of the curtain on stress-strain properties of the tractor." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 55, no. 4 (2007): 77–88. http://dx.doi.org/10.11118/actaun200755040077.

Full text
Abstract:
The goal of the experimental measurement was determination of relation among weight load of the tractor together, hitch height changes and drawbar characteristic. The measurement was realized on chassis dynamometer at MUAF in Brno. The first step consisted of rated speed characteristics measurement in conformity with OECD demands. The drawbar characteristic was measured under two selected gears. Adding 980 kg to the nominal wight of the tractor brought increasing maximal drawbar power and drawbar force together with decreasing of slip. The highest differences were observed during the mesurement of fifth gear shifted. The drawbar force grew up to 18.9% as well as the maximal drawbar power (15.2%). The maximal drawbar power at ninth gear gave 62.8 kW. The hitch height was setting to 0.54 m; 0.64 m and 0.74 m. When the hitch height was set from 0.54 m to 0.74 m the drawbar force an power on front axle was lower by reason of load reduction. As can be noticed from the final drawbar characteristics, both curves are identical up to border of maximal drawbar power. Small differences in the area of the highest slips can be ascribed to the rolling resistance.
APA, Harvard, Vancouver, ISO, and other styles
2

Pradhan, Piyush, Ajay Verma, Rajesh Naik, and Prabhat Guru. "Traction and drawbar performance characteristics of power tiller attached cage wheel." BIBECHANA 13 (December 3, 2015): 38–49. http://dx.doi.org/10.3126/bibechana.v13i0.13351.

Full text
Abstract:
The study was carried out in the research farm of Indira Gandhi Agricultural University Raipur Chhattisgarh in June 2014. To evaluate drawbar and tractive power of 4.85kW of power tiller cultivator attached with two different types of cage wheel of half width (C1) and angle type wheels (C2) for a small power tiller operated in clay soil of wet land and flood condition. It was found that the maximum draft values of C1 and C2 were 1192N and 1039N in flood condition and 1318N and 1225N in wet condition. The results showed that maximum tractive efficiency was for cage wheel C1 and C2 values were 72.91% and 69.86% in puddle soil. The maximum field capacity was 0.084 ha/h for cage wheel C2 in puddle soil.BIBECHANA 13 (2016) 38-49
APA, Harvard, Vancouver, ISO, and other styles
3

Vykydal, Petr, František Bauer, Pavel Sedlák, and Adam Polcar. "The influence of the undercarriage and tire inflation rating on drawbar characteristics of tractors." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 60, no. 5 (2012): 255–64. http://dx.doi.org/10.11118/actaun201260050255.

Full text
Abstract:
The aim of the measurement was to verify the drawbar characteristics of chosen tractors with different undercarriages. The tractors were of the same engine power as well as type of gearbox (PowerShift – gears full shifted while loaded). We were dealing with the wheeled tractor John Deere 8320 and crawler tractor John Deere 8320RT. The measurement was implemented in the land register of Vrbovec (Znojmo region) in an area where green peas were grown as the main product and winter wheat as the preceding crop. The measured and the counterproductive tractors were interconnected by the rope containing strain-gauge force sensors. The wheeled tractor was decelerated by the tractor crawler. The tractor crawler was decelerated by two wheeled tractors. The wheeled tractor’s stress-strain properties were also measured applying two pressure rating alternatives. Variant A presented inflation pressure of 160 kPa on the front axle and of 140 kPa on the rear axle. Variant B applied inflation pressure of 120 kPa on the front axle and of 100 kPa on the rear axle. Measured and calculated findings reveal that the tractor crawler achieved higher drawbar power and lower specific tractive consumption and traction slip than the wheeled tractor with both variants of inflation. Comparing the stress-strain characteristics of the wheeled tractor with a different tire inflation illustrates that using variant B, higher drawbar power and lower specific tractive consumption and traction slip were measured.
APA, Harvard, Vancouver, ISO, and other styles
4

Никифорова, Antonina Nikiforova, Хахина, Anna Khakhina, Хитров, Egor Khitrov, Григорьев, Igor Grigorev, Григорьева, and Olga Grigoreva. "Calculation of wheel forest machines traction characteristics with wes-method." Forestry Engineering Journal 6, no. 3 (October 10, 2016): 196–202. http://dx.doi.org/10.12737/21699.

Full text
Abstract:
The article deals with the calculation the most important indicators to determine the effi-cincy of skidders for certain soil conditions, i.e. – resistance to a skidder wheel interaction; - net thrust of the mover with soil; - drawbar pull coefficient. Calculations are based on WES-models, widely spread among foreign researchers.
APA, Harvard, Vancouver, ISO, and other styles
5

Tian, Guo Liang. "Research on Application of New Concrete Silo Construction Technical System." Advanced Materials Research 1065-1069 (December 2014): 1577–85. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.1577.

Full text
Abstract:
considering the development of concrete silo structure in recent years and engineering characteristics of large reinforced concrete silo, construction processes and structures of concrete silos are classified and general construction technical system is formed through innovation of construction technique and process. The general construction technical system focuses on adjustable drawbar climbing formwork system, inside drawbar-free climbing formwork system and whole lifting and towing integrated climbing formwork system, is featured with integrated construction and has multiple technical units, which could be combined flexibly to adapt to certain requirements of different projects. This method not only has flexible process, but also possesses uniform construction technique and process.
APA, Harvard, Vancouver, ISO, and other styles
6

Chen, Y. S., C. C. Chiu, and Y. D. Cheng. "Dynamic analysis of disc spring effects on the contact pressure of the collet—spindle interface in a high-speed spindle system." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 223, no. 5 (May 1, 2009): 1191–201. http://dx.doi.org/10.1243/09544062jmes1329.

Full text
Abstract:
In a high-speed gas spindle, the drawbar force required to hold the drill bit is produced by the deformation of disc spring stacks. This drawbar force, applied to the collet—spindle interface, generates a contact pressure on the collet to hold the drill bit in position. Thus, the behaviour of the collet—spindle interface is critical to machining quality. Accordingly, this study investigated how disc spring characteristics affect the collet—spindle interface in a high-speed spindle. Typi-cally, the drawbar force will decrease following the deformation of disc springs resulting from the effects of centrifugal force at high rotational speeds. This effect must be considered, especially in high-speed spindle applications. This study first measured the drawbar force experimentally and compared these results with theoretical and finite-element analysis (FEA) data under static conditions (i.e. no rotation). Having obtained satisfactory agreement among these data, the FEA was extended to a further investigation. Properties of the collet—spindle contact interface were analysed, given changes in rotational speed from 0 to 300 000 r/min under various disc spring deflections, various friction coefficients between the disc springs and their support, and distinct taper angles at the collet—spindle interface. All of these conditions are discussed here. These essential parameters are believed to cover much of the design of high-speed gas spindle systems.
APA, Harvard, Vancouver, ISO, and other styles
7

Ge, Xu Kun, Da Wei Liu, and Bin Tian. "Dynamic Analysis of Lifting Mechanism Based on Rigid-Flexible Coupling." Advanced Materials Research 849 (November 2013): 411–16. http://dx.doi.org/10.4028/www.scientific.net/amr.849.411.

Full text
Abstract:
To obtain realistic dynamic characteristics of the lifting mechanism, the liftarm and drawbar were regarded as flexible bodies. The modal neutral file (MNF) of liftarm and drawbar were obtained from modal analysis conducted by finite element analysis (FEA) software MSC.Patran/Nastran . Then the MNF were translated into ADAMS, a rigid-flexible coupling model of the lift mechanism was built by replacing the rigid bodies with MNF. The forces of each hinge points in the rigid-flexible system, which were obtained from dynamic analysis, were compared with the rigid ones. The results showed that forces obtained from the rigid-flexible system were smaller than the rigid ones, which provided a reference for the design and improvement of the lifting mechanism.
APA, Harvard, Vancouver, ISO, and other styles
8

Šmerda, T., and J. Čupera. "Tire inflation and its influence on drawbar characteristics and performance – Energetic indicators of a tractor set." Journal of Terramechanics 47, no. 6 (December 2010): 395–400. http://dx.doi.org/10.1016/j.jterra.2010.02.005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Ghali, Aleawi A. "Effect of Soil Moisture and Tillage Depth on Some Mechanical Properties for Tillage Machines Type (Moldboard Plow)." JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences 27, no. 2 (April 1, 2019): 195–207. http://dx.doi.org/10.29196/jubpas.v27i2.2084.

Full text
Abstract:
The effect of soil moisture and tillage depth was studied based on some mechanical properties for type tillage machine (moldboard plow) and soil physical characteristics wene tested two soil moisture levels of 10-12%and 12-14% and three levels tillage depth of 14,16 and 18 cm. The experiments were conducted in a factorial experiment under a randomized complete block design with three replications. The results showed that the soil moisture 10-12 % was significantly better than the soil moisture 12-14% as while tillage depth at range 14cm was significantly superior to the other two levels 16 and 18 cm in all studied conditions. The results showed fuel consumption of 11.348 and 10.777 L.ha-1 , slippage percentage of 9.291 and 9.111 % power losses due to slippage of 2.689 and 2.414 kW, field efficiency of 68.358 and 68.967 %, drawbar power 12.226 and 12.001kw and specific resistance 9.045 and 8.553 N.cm-2 for soil moisture 10-12% and tillage depth 14 cm , respectively.
APA, Harvard, Vancouver, ISO, and other styles
10

Lu, Nian Li, Ce Chen, and Shi Ming Liu. "The Out-of-Plane Stability Analysis of Crane Jib with Two Symmetric Drawbars." Applied Mechanics and Materials 446-447 (November 2013): 469–73. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.469.

Full text
Abstract:
The out-of-plane stability of the crane jib with two symmetric drawbars is studied. Differential equation with two non-conservative forces caused by the two symmetric drawbars is established in critical condition. According to the boundary conditions and proper parameter processing, the out-of-plane characteristic equation is obtained for the crane jib. Comparison with the ANSYS results verified the correctness of the method. And special cases are given to show the consistency of the method used in this paper and that with one drawbar given by the Chinese Design Rules for crane (GB3811-2008). The contribution of the angle between two symmetric drawbars to the out-of-plane stability of the crane jib is also discussed. The results show that, the crane jib with two symmetric drawbars has higher out-of-plane stability than that with one drawbar, and the increase of the angle between the two symmetric drawbars will lead to the significant increase of the out-of-plane stability of the crane jib.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Drawbar characteristics"

1

Chmelař, Zdeněk. "Vliv podvozku na tahové vlastnosti traktorů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231709.

Full text
Abstract:
In this master thesis is analyzed the current situation in the construction chassis of tractors, in addition, a methodology for evaluating the impact of influences on drawbar properties of tractors. The main objective of this work was to analyze and conclude the measured drawbar properties of selected tractor same power and weight categories with different chassis designs. Measured and calculated values were tabular and graphically presented. When evaluating the drawbar properties were determined according tractive power and slip depending on the drawbar forces.
APA, Harvard, Vancouver, ISO, and other styles
2

Kopečný, Aleš. "Vliv pneumatik na výstupní parametry traktorů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231708.

Full text
Abstract:
The thesis summarizes the results of the measurement of the output parameters of the tractor, on which were mounted three different types of tires. The measured parameters are the maximum pulling power, slippage, specific effective fuel consumption at the maximum pulling performance. The final measured and calculated results are presented in tables and graphs. The results of the measurements were processed by the use of regressive analysis.
APA, Harvard, Vancouver, ISO, and other styles
3

Rašovská, Hana. "Vliv podvozku na energetické a výkonnostní parametry traktorů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231381.

Full text
Abstract:
This master thesis deals with the influence of the type of tractor chassis on its utility properties. For the rating were used tractors John Deere 8 – series with wheel and track chassis, equipped with the same engine and gearbox, which were carried out for laboratory and field tests. The aim of laboratory tests was the exclusion of the difference in engine power of both tractors and the aim of field tests was to evaluate the drawbar properties of tractors with a different type of chassis. The reference parameter was especially drawbar pull, further drawbar power, slip and fuel consumption. Based on the tabular and graphical elaboration of the measured values were evaluated results.
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Drawbar characteristics"

1

Singh, Sneha, and Manisha Bharti. "Error Control and Reliable Data Delivery in UWSNs." In Energy-Efficient Underwater Wireless Communications and Networking, 131–54. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-3640-7.ch009.

Full text
Abstract:
Underwater wireless sensor networks (UWSNs) contains many components such as vehicles and sensors that are deployed for cooperative monitoring and data collection tasks in a particular acoustic environment various nodes and ground-based stations use these networks interactively. Presently, UWSNs face the problems and obstacles regarding limited bandwidth, high propagation delay, 3D topology, media access control, routing, resource utilization, and power constraints. The research community has developed different methodologies over the past few decades to address these issues and challenges; but, due to complex characteristics of the underwater environment, some of them are still open to research. The main drawback of the traditional approach is the lack of direct interaction between different ends, recorded information can never be accessed during any mission, and data recorded will be lost in the event of any failure.
APA, Harvard, Vancouver, ISO, and other styles
2

Wilson, Rick L., Peter A. Rosen, and Mohammad Saad Al-Ahmadi. "Knowledge Structure and Data Mining Techniques." In Data Warehousing and Mining, 9–17. IGI Global, 2008. http://dx.doi.org/10.4018/978-1-59904-951-9.ch002.

Full text
Abstract:
Considerable research has been done in the recent past that compares the performance of different data mining techniques on various data sets (e.g., Lim, Low, & Shih, 2000). The goal of these studies is to try to determine which data mining technique performs best under what circumstances. Results are often conflicting—for instance, some articles find that neural networks (NN) outperform both traditional statistical techniques and inductive learning techniques, but then the opposite is found with other datasets (Sen & Gibbs, 1994; Sung, Chang, & Lee, 1999: Spangler, May, & Vargas, 1999). Most of these studies use publicly available datasets in their analysis, and because they are not artificially created, it is difficult to control for possible data characteristics in the analysis. Another drawback of these datasets is that they are usually very small.
APA, Harvard, Vancouver, ISO, and other styles
3

Khan, Amit, and Dipankar Majumdar. "De-Noising of Binary Image Using Accelerated Local Median-Filtering Approach." In Intelligent Innovations in Multimedia Data Engineering and Management, 164–85. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7107-0.ch007.

Full text
Abstract:
In the last few decades huge amounts and diversified work has been witnessed in the domain of de-noising of binary images through the evolution of the classical techniques. These principally include analytical techniques and approaches. Although the scheme was working well, the principal drawback of these classical and analytical techniques are that the information regarding the noise characteristics is essential beforehand. In addition to that, time complexity of analytical works amounts to beyond practical applicability. Consequently, most of the recent works are based on heuristic-based techniques conceding to approximate solutions rather than the best ones. In this chapter, the authors propose a solution using an iterative neural network that applies iterative spatial filtering technology with critically varied size of the computation window. With critical variation of the window size, the authors are able to show noted acceleration in the filtering approach (i.e., obtaining better quality filtration with lesser number of iterations).
APA, Harvard, Vancouver, ISO, and other styles
4

Jayalakshmi, S., and R. Arvind Singh. "Processing Routes, Mechanical, and Tribological Properties of Light Metal Matrix Nanocomposites." In Materials Science and Engineering, 991–1037. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1798-6.ch040.

Full text
Abstract:
The chapter highlights the various processing/synthesizing routes of Light Metal Matrix Nanocomposites (LMMNCs), their microstructural characteristics, mechanical behaviour, and tribological properties. LMMNCs are advanced materials, in which nano-sized ceramic particles are reinforced into Al/Mg matrices. In conventional Metal Matrix Composites (MMCs), the incorporation of micron sized reinforcements in the matrix usually results in a considerable improvement in hardness and ultimate strength when compared to the unreinforced base material. However, most of these composites do not show plastic deformation (little or no yield) and exhibit drastic reduction in ductility. This poses a major limitation for MMCs to be used in real-time applications. In order to overcome this drawback, Al/Mg composites with nano-scale reinforcements have been developed. Based on numerous research works, it has been established that LMMNCs are better materials that possess superior properties, wherein both strength and ductility improvements along with excellent wear resistance can be achieved.
APA, Harvard, Vancouver, ISO, and other styles
5

Jayalakshmi, S., and R. Arvind Singh. "Processing Routes, Mechanical, and Tribological Properties of Light Metal Matrix Nanocomposites." In Processing Techniques and Tribological Behavior of Composite Materials, 1–46. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-7530-8.ch001.

Full text
Abstract:
The chapter highlights the various processing/synthesizing routes of Light Metal Matrix Nanocomposites (LMMNCs), their microstructural characteristics, mechanical behaviour, and tribological properties. LMMNCs are advanced materials, in which nano-sized ceramic particles are reinforced into Al/Mg matrices. In conventional Metal Matrix Composites (MMCs), the incorporation of micron sized reinforcements in the matrix usually results in a considerable improvement in hardness and ultimate strength when compared to the unreinforced base material. However, most of these composites do not show plastic deformation (little or no yield) and exhibit drastic reduction in ductility. This poses a major limitation for MMCs to be used in real-time applications. In order to overcome this drawback, Al/Mg composites with nano-scale reinforcements have been developed. Based on numerous research works, it has been established that LMMNCs are better materials that possess superior properties, wherein both strength and ductility improvements along with excellent wear resistance can be achieved.
APA, Harvard, Vancouver, ISO, and other styles
6

"Structure and Properties of Composite Adsorbents Salt Inside Porous Matrix." In Technology Development for Adsorptive Heat Energy Converters, 43–87. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4432-7.ch003.

Full text
Abstract:
The chapter is devoted to structure and properties of composite adsorbents ‘salt inside porous matrix'. Characteristics of adsorbents ‘salt inside porous matrix', such as ‘zeolite – crystalline hydrate', ‘vermiculite – crystalline hydrate', ‘silica gel – crystalline hydrate' were analysed. Main advantages of composite adsorbents are shown to be higher adsorptive capacity and lower regeneration temperature as compared with host matrix. Adsorptive capacities of composite materials are shown to be significantly enhanced by introduction of salts in host matrix such as zeolite, vermiculite, or silica gel. Water uptake by composite adsorbent is shown to be increased by rising the salt content in it. The drawback of most of existing impregnation technologies is shown to be impossibility of obtaining composite with salt content more than 40 – 60% along with complexity. Sol gel method is shown to be an alternative for conventional impregnation methods. Properties of adsorbents ‘silica gel – sodium sulphate' synthesized according to sol gel method developed by authors were considered. The composite ‘silica gel – sodium sulphate' composition and structure were studied by IR-spectroscopy and wide-angle x-ray scattering. Adsorptive properties of crystalline Na2SO4 when allocated in silicon oxygen matrix are shown to result from dispersion up to nanoscale. Adsorptive capacities and heat of adsorption of composites ‘silica gel – sodium sulphate' and ‘silica gel – sodium acetate' surpass almost by 30% the value calculated from the linear superposition of the sorption capacities of the sorbent and massive salt. Their adsorption properties are shown to be not a linear combination of properties of silica gel and salt. The formation of a unique structure promoting an increase in the rate of reaction between crystalline hydrates and water vapor in the developed pores of the silicon-oxygen matrix is confirmed. It leads to increasing the heat of adsorption and the heat energy storage density. Strong difference of water sorption kinetic curves of composite ‘silica gel – sodium sulphate' and massive sodium sulphate is revealed. The correlation of their composition, structure, water adsorption kinetic, and operating characteristic as heat storage material is stated.
APA, Harvard, Vancouver, ISO, and other styles
7

"Performance of Adsorptive Heat Storage Devices for Heat Supply." In Technology Development for Adsorptive Heat Energy Converters, 124–73. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4432-7.ch005.

Full text
Abstract:
The chapter is focused on modelling of performance of adsorptive heat storage devices and estimation of performance of heat storage devices. Two groups of models of adsorptive heat storage units suggested previous researchers are analyzed. The first one is focused on predicting the heat energy storage density, it being based on Dubinin-Polanyi theory. The second one is devoted to analyzing the kinetic of adsorption processes and performance of the adsorber or adsorptive-desorptive reactor filled with traditional adsorbent or salt which forms crystalline hydrates. The key drawback of both groups of models concerns with considering only one stage of exploitation of adsorptive heat storage device in spite of its operating in two-stage mode, that is, alternating discharge (adsorption) and charge (regeneration). It inhibits estimation of efficiency of adsorptive heat storage device basing on full operating cycle and its involving in heat supply system. Two algorithms for estimation of operating parameters are proposed by authors for closed-type and open-type heat storage devices. The algorithm for calculation of operating parameters of closed type adsorptive heat storage device is proposed: calculation of the mass transfer coefficient, adsorption, useful heat, that is, heat of adsorption, determination of the heat input, it being calculated as heat inputs for heating the adsorbent, device housing, water in the tank, evaporation of water in the tank, heating of the adsorbed water and desorption. Then efficiency factor is calculated. The operating characteristics of a closed-type heat energy storage device were studied when the composite adsorbent ‘silica gel – sodium sulphate' used. The effect of the humid airflow velocity on the efficiency factor is taken into account by introducing a coefficient equal to the value of the adsorption. An increase in the efficiency coefficient was stated when the velocity and relative humidity of the airflow. It is shown that the humid air flow temperature practically does not affect its value. Having been used the suggested algorithm, the optimal operating characteristics of an adsorptive heat storage device of a closed type based on a composite adsorbent ‘silica gel – sodium sulphate' for a private house heating system are revealed to be humid air velocities of 0.6 – 0.8 m/s and relative humidity 40 – 60%. When these operational data applied, the efficiency coefficient is shown to reach the maximum values (about 55%). Algorithm of calculation of operating parameter of open-type heat storage device includes computation of mass transfer coefficient, adsorption, useful heat (heat of adsorption), heat input for heating the adsorbent, device casing, water in the humidifier, evaporation of water, heating the adsorbed water, desorption, and calculating efficiency coefficient. Performance of open-type heat storage device based on the composite adsorbent ‘silica gel – sodium sulphate' is estimated. The optimal operating conditions of the heat accumulating device which allow operating with maximal magnitudes of efficiency coefficients 53 – 57% are stated to be humid airflow speed of 0.6 – 0.8 m/s and relative humidity of 40 – 60%. Correlation between efficiency factors obtained by experiments and calculated with suggested algorithm is confirmed. The possibility of reducing the power consumption when heat storage devices applied in 2,4 – 90 times versus decentralized heating systems on basis of solid fuel boiler, gas boiler and electric boiler is stated when open-type sorptive heat storage device used. Results of the study can be used to develop adsorptive storage devices in decentralized heat supply and ventilation systems and adsorption units for utilization of low-temperature waste heat.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Drawbar characteristics"

1

Goddard, Steve. "Vehicle Drawbar Test Characteristics of Electric and Viscous Clutch All Wheel Drive Systems." In International Truck & Bus Meeting & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1993. http://dx.doi.org/10.4271/933052.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Chen, Lianfeng, Tianran Zheng, Qing Chen, and Jun Zhang. "Investigation on frictional characteristics and drawbead restraining force of steel with/without coating." In NUMISHEET 2014: The 9th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes: Part A Benchmark Problems and Results and Part B General Papers. AIP, 2013. http://dx.doi.org/10.1063/1.4850120.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ren, F., and Z. C. Xia. "An Investigation of Drawbead Models for Springback Prediction." In ASME 2006 International Manufacturing Science and Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/msec2006-21016.

Full text
Abstract:
Accurate prediction of springback for rail-type structures remains a significant challenge for automotive stamping. A major characteristic of forming such parts is that metals go through drawbeads and die-entry radii and often end up within part geometry (i.e., inside trimline). The bending-unbending stresses generated by drawbeads contribute significantly to the eventual springback. In production springback simulation, line drawbead models are generally used to represent the restraining forces provided by the real drawbeads for computational efficiency. While such models can be well correlated to match overall deformation of the part, the bending stresses could not be accurately captured. In the present study, a model of an aluminum U-channel is used to evaluate springback predictability of line drawbead model, which is then compared against simulations that employ detailed drawbead geometry. The results show that the line drawbead model largely under-predicts the springback and the bending moment. The accuracy of the prediction cannot be improved through different binder simulation strategies such as displacement-control or force-control. The study suggests that either real drawbeads be modeled, or the bending stress be incorporated into the line model to improve springback prediction.
APA, Harvard, Vancouver, ISO, and other styles
4

Wang, Kun, Ying Zhang, and Richard W. Jones. "The Modelling of Hysteresis in Magnetorheological Dampers Using a Generalised Prandtl-Ishlinskii Approach." In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3672.

Full text
Abstract:
The major drawback of magnetorheological dampers (MR) lies in their non-linear and hysteretic force-velocity response. To take full advantage of the operating characteristics of these devices a high fidelity model is required for control analysis and design. In this contribution the ability of a generalised PI operator-based model to represent the characteristics of a commercially available MR damper is examined. This approach allows the user to define the PI operator to best match the hysteresis characteristics. For the MR damper the force-velcoity hysteresis characteristic is ‘S’ shaped and constrained. Two possibilities will be examined here for the generalised play operator; an hyperbolic tan function and a symmetric sigmoid function.
APA, Harvard, Vancouver, ISO, and other styles
5

Rui, Guo, and Zhao Jingyi. "Research of electro-hydraulic control system design and energy saving characteristic in the new drawbead test bed." In 2011 International Conference on Fluid Power and Mechatronics (FPM). IEEE, 2011. http://dx.doi.org/10.1109/fpm.2011.6045777.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Sato, Yusuke, Hiroshi Sodeyama, Makoto Hayama, and Shin Morishita. "An Experimental Study on Basic Characteristics of a Magneto-Rheological Grease Damper." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45463.

Full text
Abstract:
As one of the semi-active vibration control devices for mechanical or civil structures, magneto-rheological fluid dampers have been enthusiastically studied and developed since the 1990s. A new magneto-rheological material for such dampers has been developed to provide a practical solution to the significant common drawback of sedimentation of ferromagnetic fine particles in the fluid. Industrial grease is used as the dispersion medium in this material. The thickener to be added in the grease to control the rheological properties seems to prevent separation of the particles from the dispersion medium. Several performance tests were carried out with a proto-type of the damper with the newly developed magneto-rheological grease, namely, the magneto-rheological grease damper. Based on the test results, the energy dissipation capabilities of the damper and the basic characteristics of the magneto-rheological grease were verified to provide semi-active vibration control. Moreover, the analytically-derived design formulae for the damper were improved on the basis of the test results.
APA, Harvard, Vancouver, ISO, and other styles
7

Li, Jibao, Arthur H. Lefebvre, and James R. Rollbuhler. "Effervescent Atomizers for Small Gas Turbines." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-495.

Full text
Abstract:
An experimental investigation is conducted into the potential of effervescent atomizers as fuel injectors for gas turbine engines. The designs studied include three different configurations of multihole effervescent atomizers and an effervescent/airblast hybrid atomizer. In all tests the liquid employed is water. The spray characteristics investigated include drop size distributions and liquid flux distributions within the spray. The results obtained show that multi hole effervesent atomizers combine good atomization with uniform liquid flux distribution. This makes them especially suitable for application to annular combustors because they allow appreciable reductions to be made 1n the number of fuel injectors needed to achieve uniform circumferential fuel distribution. The hybrid atomizer also combines good atomization with the capability of wide cone angles. The only drawback exhibited by these atomizers is the need for a separate supply of atomizing air. This drawback could restrict their applications to non-aeronautical gas turbine engines.
APA, Harvard, Vancouver, ISO, and other styles
8

Ito, Koichi, Ryohei Yokoyama, and Makoto Shimoda. "Optimal Planning of a Super Waste Incineration Cogeneration Plant." In ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-gt-384.

Full text
Abstract:
This paper, is concerned with the evaluation of economic and energy saving characteristics of a super waste incineration cogeneration plant, which is equipped with gas turbines as topping cycle to overcome a drawback of low power generating efficiency of conventional waste incineration cogeneration plants only with steam turbines. Economic and energy saving characteristics are evaluated using an optimal planning method which determines capacities and operational strategies of constituent equipment from their many alternatives so as to minimize the annual total cost. Through a case study, advantages of a super waste incineration cogeneration plant are shown in comparison with a conventional one. A parametric study is also carried out with respect to the amounts of waste collected and energy distributed.
APA, Harvard, Vancouver, ISO, and other styles
9

Kebadze, Elizbar B., Stuart Killbourn, John Henderson, Gavin Chomczuk, Andrew Mosley, David Bolger, and Jim Maher. "Wellhead Monitoring: Measured Fatigue Damage Validation." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61081.

Full text
Abstract:
A hydroacoustic monitoring system is deployed on a BOP-stack and riser during drilling of production wells to record fatigue accumulation in the subsea wellhead and conductor. Data is relayed to the vessel in real-time so that well operations can be planned to manage fatigue life. The monitoring assures the asset integrity is maintained throughout its lifecycle: construction, work-over operations and abandonment. Motion measurements of the BOP-stack and riser are analysed in conjunction with a finite-element model of the wellhead-BOP-riser-vessel system to determine stresses at various welds and hotspots. The main drawback of such an approach is that “measured” fatigue still relies on the model accuracy, which cannot be guaranteed due to uncertainty associated with many parameters used in modelling. This paper describes validation of the modelled subsea stack and its foundation characteristics against measurements so that “measured” fatigue is as accurate as possible. This involves (1) determining the depth of BOP-stack centre of rotation; (2) identifying the BOP-stack characteristic frequency, and (3) matching stress responses derived from measurements taken at different heights on the stack. Model parameters (e.g. soil stiffness and added mass) are tailored to optimise agreement with measurements thereby improving the accuracy of “measured” fatigue estimations.
APA, Harvard, Vancouver, ISO, and other styles
10

Kaushal, Arun, Gurpreet Singh, Subhash Chander, and Anjan Ray. "Heat Transfer Characteristics of Low Reynolds Number Turbulent Swirling LPG/Air Flame Impinging on a Flat Surface." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22366.

Full text
Abstract:
An experimental study has been conducted to determine the heat transfer characteristics for low Reynolds number turbulent swirling LPG/Air flames impinging on a flat surface. Effect of variation of Reynolds number (3000–7000), dimensionless separation distance (H/d = 1 to 6) and equivalence ratio (φ = 0.8 to 2) on heat transfer characteristics has been determined at constant swirl number of 4. Further, experiments were also conducted to investigate the effect of swirl number on heat transfer characteristics at Re = 7000, φ = 1.0 and H/d = 5. It has been concluded that the major drawback of flame impingement i.e., non-uniformity in the heating can be resolved by using swirling flames in place of non-swirling flames. With increase in Reynolds number the flame becomes longer and broader. Also, at higher Re the flame becomes noisy and violent because of the enhanced turbulences in the flame. A dip in the temperature was observed at the stagnation point at all Re and this dip was more significant at higher Re. At small separation distances (H/d = 1 and 2) and at large Reynolds numbers (Re = 7000) heating is comparatively more non-uniform because of close proximity of the visible reaction zone to the plate resulting in intense heating in the stagnation region. High average heat fluxes were obtained at low separation distances and at larger Reynolds numbers.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Drawbar characteristics' for particular source types:
Journal articles
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!

To the bibliography