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  • Users: bljnv
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  1. bljnv

    Fatigue in welded structures

    I am referring to BS 7608-1993 standard. I would like to follow this standard for fabricated structures used in mobile equipments. In section 3.1, it says the fatigue analysis procedure for welded structures is based on the assumption that only ranges of cyclic stress are considered for...
  2. bljnv

    Fatigue in welds

    I am referring to BS 7608-1993 standard. In section 3.1, it says the fatigue analysis procedure for welded structures is based on the assumption that only ranges of cyclic stress are considered for evaluating fatigue life i.e. mean stresses are neglected. But for unwelded parts the mean stress...
  3. bljnv

    Fatigue in welded joints

    I am referring to BS 7608-1993 standard. In section 3.1, it says the fatigue analysis procedure for welded structures is based on the assumption that only ranges of cyclic stress are considered for evaluating fatigue life i.e. mean stresses are neglected. But for unwelded parts the mean stress...
  4. bljnv

    Brass plastic combination parts

    I am in the job of designing a plastic casing. The casing is designed to hold air upto 200 psig. The casing interfaces with adjoining threaded parts of M10 and M12 size made of brass. Essentially I would like to have interfacing portions of the plastic part in Brass. Can the experts here provide...
  5. bljnv

    Suggestion

    I want to 3D print a tyre valve which will be used for functional tests. The regular material is brass. I request suggestions on the following. (a) What can be the material for 3D printing? The part made using this material should withstand air pressures upto 10 bar. (b) The valves will have...
  6. bljnv

    Single Well and double well rims

    For some tyres (eg: 500/70R24) we have both W16 and DW16 rims approved. What kind of effect do these rims have during the tyre assembly. What will be the effect on strength between the two design rims. Experts please advise.
  7. bljnv

    Impact load

    I am currently working on a hydraulic cylinder project. The customer specification calls for design adequacy checking of the cylinder against impact of 2800 KN/s. What is this meaning? Is it loading rate? Can somebody provide guidance to approach this problem so that I understand this...
  8. bljnv

    Clamps for wheel

    I have seen on internet information regarding the wheel clamps.How much do they cost? What are the points to be looked to ensure their quality and reliability? Do they create any marks on the wheels after the clamps are removed? Who are the reputed manufacturers of these clamps? Do we have...
  9. bljnv

    Information on clamps for wheels

    I have seen on internet information regarding the wheel clamps.How much do they cost? What are the points to be looked to ensure their quality and reliability? Do they create any marks on the wheels after the clamps are removed? Who are the reputed manufacturers of these clamps? Do we have...
  10. bljnv

    Bending of press fitted components

    The component is a hollow pipe with a groove on its outer diameter. The groove is at one end of the pipe. This groove will receive a locking retainer. The locking retainer is assembled such that a portion of it projects above the groove and thereby locking the components assembled over the pipe...
  11. bljnv

    A query on wheel rim

    Dear all I am interested to know if i can convert a tubeless wheel rim to a tubed rim for a special equipment like road sweeper. Will there be any difference in rim thickness apart from the visual difference of valve hole. This will be a short term arrangement till I get the correct rim. Regards
  12. bljnv

    Inflated tyre

    I have a fundamental question. What are the various factors which can cause the drop in air pressure inflated inside the tire cavity over the period while the vehicle is running and or is parked? Regards
  13. bljnv

    Weld over weld

    In our design, a circular disc is welded on its circumference by fillet weld to the inside of a pipe. To improve yield the pipe is made of two piece and joined circumferentially by submerged arc welding. The fillet weld of the disc-pipe and pipe circumferential joint submerged arc weld fall at...
  14. bljnv

    Shovels

    Dear Members I heard that Hardox grade steels are used to fabricate the loading shovel or excavator buckets are made from special grade steel. What is the speciality of that steel. Why cannot the shovel be fabricated from a steel casting? Thanks
  15. bljnv

    Tire forces

    My question to the dear forum members : As the vehicle rolls over the ground, the dynamic forces experienced at the tire road interaction is transmitted to the wheel rim. Tire is resembling linear and side springs. The properties of the tire are closely guarded proprietary information. Here I am...
  16. bljnv

    New technology?

    I am interested to learn about latest developments like TWHEEL concept happening in the wheel / rim design and development specifically related to industrial, OTR applications.
  17. bljnv

    Taper lock wheel rims

    In certain applications, like mobile cranes, reach stackers, demountable wheel rims are used. I request the forum members to enlighten me regarding the purpose, advantages of using such rims.

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