Applied Mechanics’ Post

The upcoming revision of ISO 21771 introduces geometry definitions for crossed axis helical gears. Typically, the two gears in a crossed helical gear pair are of cylindrical involute type. The geometry of these gears are hence calculated along the usual methods, as documented in geometry standards. The two gears do not need to have the same base helix angle and can have the same or opposite hand of helix, provided that the intermeshing racks are complementary and share the same basic characteristics. Crossed axis helical gears can achieve higher transmission ratios than typical parallel axis counterparts, making them particularly well-suited for applications in confined spaces like small actuators. Moreover, characteristics of a crossed helical gear mesh may also be utilized to simulate the cutting processes of cylindrical involute gears. Tools used in manufacturing may have a narrow disc-shaped geometry (to simulate a pinion-type cutter) or a long worm-shaped geometry (to simulate a hobbing cutter). Another manufacturing method is Gleason Power Skiving. KISSsoft checks the feasibility of manufacturing cylindrical involute gears using these methods. More Information:www.kisssoft.com #kisssoft #designsoftware #helicalgears

🌟The upcoming revision of ISO 21771 introduces geometry definitions for crossed axis helical gears. Typically, the two gears in a crossed helical gear pair are of cylindrical involute type. The geometry of these gears are hence calculated along the usual methods, as documented in geometry standards. The two gears do not need to have the same base helix angle and can have the same or opposite hand of helix, provided that the intermeshing racks are complementary and share the same basic characteristics. Crossed axis helical gears can achieve higher transmission ratios than typical parallel axis counterparts, making them particularly well-suited for applications in confined spaces like small actuators. Moreover, characteristics of a crossed helical gear mesh may also be utilized to simulate the cutting processes of cylindrical involute gears. Tools used in manufacturing may have a narrow disc-shaped geometry (to simulate a pinion-type cutter) or a long worm-shaped geometry (to simulate a hobbing cutter). Another manufacturing method is Gleason Power Skiving. KISSsoft checks the feasibility of manufacturing cylindrical involute gears using these methods. More Information: www.kisssoft.com OR CONTACT - 📩 contact@kadkraft.com, 📞 +91 9023172022 #KISSsoft #Kadraft #GearDesign #GearSimulation #Simulation #HelicalGear

Layer-parallel slip, weak partings etc - a better example, simple but illustrative. 2D discrete-element model of cover deformation above a listric fault. Cover is frictional-cohesive, bottom panel homogeneous, top panel has 5 weak contacts/partings/layers. All other boundary conditions identical. Scales etc given to the right, although this example is just chosen to illustrate/test a point and a mechanism. Left column is just end geometry, right column is total max. shear strain. Just how strain can hide eh? More later, coffee time.

New GD&TIP: Is it correct to treat cylindricity as ± (plus-minus) from the center axis of the part? If there is one thing, we can be sure about, A physical workpiece will never be perfect (and even if it was, we have limited measurement accuracy). That is the reason we need to specify Functional limits to geometry to assure a manufactured part will fit and function as plane. For further reading follow the link:

CAMWorks Multiaxis Machining allows a wide variety of shops and manufacturing facilities to take advantage of 4/5-axis machines that provide greater productivity, equipment flexibility and quality. Insert Multi Surface feature method, All Displayed https://bit.ly/3CEhM49 #CAMWorks #cadcam #machining #design #programming #manufacturing #cnc #ncsoftware #nctools

There are six key modelling features of a high-speed press.

Scotch Yoke vs. Slider-Crank: Oscillation Mechanisms in Action ⚙️🔄 🔍This video demonstrates how a Scotch Yoke produces a perfect sine motion along the horizontal axis, while a slider-crank mechanism results in a slightly different oscillation. 🔧 The Scotch Yoke’s pure sine oscillation offers a clear graphical explanation of the secondary imbalance in internal combustion engines, providing unique insights into mechanical design and efficiency. 💳 Content Credit: Edgar Torres (YT) #Engineering #MechanicalEngineering #ScotchYoke #SliderCrank #Kinematics #Oscillation #InternalCombustionEngine #MechanismDesign #EngineeringInsights #MachineDesign #MotionMechanics #TechEducation

CAMWorks Multiaxis Machining allows a wide variety of shops and manufacturing facilities to take advantage of 4/5-axis machines that provide greater productivity, equipment flexibility and quality. Insert Multi Surface feature method, All Displayed https://bit.ly/3CEhM49 #CAMWorks #cadcam #machining #design #programming #manufacturing #cnc #ncsoftware #nctools

Joint-fracture sets on Sunday morning, woken up far too early. A high-resolution test of double-sided collapse in my 2D discrete-element model. Initial section 500mx220m , then both end-walls removed. Average element radius about 0.8m, frictional-cohesive materials....but with 2 orthogonal sets of joints imposed at 15m intervals, around 47,500 elements. This is all just for testing and to see how things behave purposes. Anyway, here is a snapshot of the deforming section just as it is starting to collapse (elements have moved a max. of around 5m): geometry and elements coloured by incremental max. shear strain, and the same after significant collapse, deformation, faulting etc. More testing, and highlighting importance of joint orientation wrt boundaries and time evolution.... enjoy

When working with cylinders in Plaxis 3D to extract the Structural Forces in Volumes sometimes issues regarding results may occur. Below is shown an example when the axial diagram has an unexpected drop zone and how it can be debugged.