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Test Procedure for Measuring Hydraulic Lift Capacity on Agricultural Tractors Equipped with Three-Point Hitch

Machine Technical Steering Committee
  • Ground Vehicle Standard
  • J283_201905
  • Current
Published 2019-05-10 by SAE International in United States

The lift capacity can be determined by Section 4 and/or Section 5. When the results are recorded, the test method shall be identified.

 
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Product Identification Numbering System of Off-Road Work Machines

MTC1, Loaders, Crawlers, Scrapers and Mounted Attachments
  • Ground Vehicle Standard
  • J1360_201905
  • Current
Published 2019-05-10 by SAE International in United States

This standard covers self-propelled off-road work machines as categorized in SAE J1116 and Agricultural Tractors as defined in ANSI/ASAE S390.

 

Personnel Protection for General Purpose Industrial Machines

OPTC1, Personnel Protection (General)
  • Ground Vehicle Standard
  • J98_201904
  • Current
Published 2019-04-11 by SAE International in United States
No Abstract Available.
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Some Experimental Studies on the Use of Tyre Pyrolysis Oil (TPO) in an Agricultural Diesel Engine

CASRAE, Delhi Technological University-Naveen Kumar
Maharaja Agrasen Institute of Technology-Ashwni Goyal
Published 2019-04-02 by SAE International in United States
Globally, the demand for energy is increasing due to both increase in population and enhancement in the lifestyle of people. Most of the energy demand at present is met from fossil fuels, which are not only exhaustible but also a threat to the environment. Various routes of sustainable energy resources are being explored to address the above-mentioned issues and fuel made from used tyre may be one of the promising options.India is one of the fastest growing economies and every year 10 million new vehicles are registered. Due to poor road conditions, nearly fourfold tyres of this number are dumped as waste. This large stock of dumped tyres are non-biodegradable and creates other problems like a breeding site for mosquitos, or source of pollution in case of accidental fire. In order to cope with the large pile-up of used tyres, pyrolysis of these tyres could be a sustainable route. Pyrolysis is a thermo-chemical process carried in absence of oxygen and a sustainable option for conversion into Tyre Pyrolysis Oil (TPO).In the present work, the performance…
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Autonomy Meets Agronomy

Autonomous Vehicle Engineering: March 2019

Terry Costlow
  • Magazine Article
  • 19AVEP03_14
Published 2019-03-01 by SAE International in United States

John Deere sows some autonomy ideas at CES 2019.

Iconic agricultural equipment giant John Deere is spearheading the expansion of digital controls in farm machinery and in so doing was the first off-highway equipment maker ever to display agriculture machinery at the 2019 CES consumer electronics conference.

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Agricultural and Forestry Off-Road Machinery Control and Communication Network

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J1939/2_201901
  • Current
Published 2019-01-14 by SAE International in United States
SAE J1939-2 specifies the requirements for application of SAE J1939 in agricultural and forestry equipment. This document specifies the series of documents within the set of SAE J1939 documents that are applicable to agricultural and forestry equipment and provides further requirements for this industry. The SAE and ISO groups have cooperated to define agricultural and forestry networks in a manner to allow compatibility of ECUs and messaging protocols between the A&F and the T&B networks.
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Fan Guard for Off-Road Machines

OPTC1, Personnel Protection (General)
  • Ground Vehicle Standard
  • J1308_201901
  • Current
Published 2019-01-10 by SAE International in United States
This practice applies to guarding of engine cooling fans used on Off-Road Self-Propelled Work Machines defined in SAE J1116. It does not include guarding for belts, pulleys, or other rotating equipment used on these machines.
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A Study of Significance in Lower Link Draft Sensing and Comparative Study over Top Link

Tractors and Farm Equipment, Ltd.-Partha Sarathi Singha, Arunkumar Selvaraj, Pawan Gundariya, Velmurugan M A, Mulam Sreenivasulu Rao
Published 2019-01-09 by SAE International in United States
One of the major impacts on tractor performance during cultivation is variation in soil draft. The control strategy shall be developed to maintain the soil draft which mainly depends on the sensitivity and accuracy of draft measurement. This paper presents the theoretical calculation of force on the lower link points of three point hitch system in tractor and selecting an optimum point for the fitment of draft sensor. The force distribution on the lower and top link was studied by developing the suitable mechanical frame with hydraulic actuation to simulate the soil draft. The control strategy was developed to maintain the draft force with tractor hydraulic system and field testing was performed on 58 hp (43 kW) tractor to compare the draft control operation with lower link draft sensing methodology and conventional top link based draft sensing. The Land was cultivated by driving the tractor on all combination of soil type transition (Hard, Medium and Soft soil) and effectiveness of draft control was analyzed. This simulation test results confirmed that the ratio of lower link…
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Method Development to Virtually Validate Farm Tractor Skid for Front End Loader Application

KMW Ltd-Dave Schneider
Mahindra Research Valley-Prasanna Balaji Subbaiyan, Abhay Kumar, Jaju Mayur, Balaramakrishna Nizampatnam, S.A Bhanuprakash
Published 2019-01-09 by SAE International in United States
In farm tractors, front end loaders are becoming popular attachments for primarily material handling such as loading, moving and unloading of woodchips, sand, gravels etc. It is also used for some severe load application such as tree uprooting and ripping operation which requires validation of loader frame and tractor as well. To validate the design, a standard pull-push test is carried out on tractor with loader in a laboratory. In this test front loader bucket is pushed against a rigidly clamped fixture with full engine throttle and maximum hydraulic cylinder pressure of loader. To avoid surprise failures during the test, a virtual simulation method needs to be developed and validated.In this paper, a method has been proposed by authors for the above objective. A multi-body dynamics model of tractor with loader is created in MSC ADAMS and actual event is simulated using test loads & boundary conditions. Forces and moments are extracted on all tractor skid attachments points from MBD model. Afterwards, an inertia relief durability analysis is done in MSC Nastran using the extracted…
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Instrumentation Technique Used for Design Optimization of Front Axle Support Bracket in Agricultural Tractor

Mahindra & Mahindra, Ltd.-Dinesh Soundararajan
Published 2019-01-09 by SAE International in United States
Agriculture tractor industry is highly competitive in the current market scenario with global majors competing in various markets. A tractor having an optimum design is of prime importance to keep the cost low while providing higher value to the customers. Technology advances in instrumentation methodology and data acquisition helps not only in providing the right inputs for the design of a component/system but also very much useful for design/system optimization.Front Axle Support of an agricultural tractor is one of the structural member which is connected to the Chassis which is called skid of the tractor to which the Front Axle is mounted through Pillow block (Plummer block) arrangement to facilitate axle oscillation about the tractor longitudinal center line. Front ballast weights are mounted on a bracket which is intern mounted to the front axle support to maintain the required front reaction in various agricultural operations. The front axle support experiences stresses and strains due to the vertical & lateral movement of the ballast weight as a result of the tractor travel and turning.Strain gauges and…
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