Transmission Oil Lubrication CFD Analsyis

Introduction of Particlesworks into Univance Corporation Oil has various important roles in lubrication, cooling, buffering and air tightness, whereas it causes torque loss for its flow resistance. For that reason, enough considerations and arguments are necessary for deciding conditions of oil physical property and quantity, and shape optimization. Therefore there was a requirement in Univance Corporation to confirm the real phenomena by simulation because it was too difficult to understand it only by Visualization of Oil Lubrication in the Transfer Case and the Transmission using Particleworks Fig. 1 – Products for automotive Oil has various important roles in lubrication, cooling, buffering and air tightness, whereas it causes torque loss for its flow resistance 22 – Newsletter EnginSoft Year 14 n°2 Case Histories Newsletter EnginSoft Year 14 n°2 – 23 experiment, which couldn’t be realized at that time. After a while, the request to visualize oil sloshing and lubrication for sufficient evaluation has increased and they’ve finally come into introduction of Particleworks through comparison with other CFD competitive solvers and benchmark test. In addition to fluid analysis, they need co-simulation of the chain behavior and the oil lubrication in the transfer case which is their key product. In other words, MBD has been a must and RecurDyn which can be coupled simulation with Particleworks has been introduced as well. Read the full case study here: https://enginsoftusa.com/pdfs/Visualization-oil-lubrication-particleworks-univance.pdf

Tracked Vehicle Dynamics Modeling and Simulation Methodology

Many Army vehicles require tracks in order to meet the tough mobility requirements for the Army mission profile. Modeling and Simulation (M&S) provides a large cost-savings and offers a quick turnaround when addressing vehicle performance issues. Once a baseline model is built for a given system, the model can be changed quickly to address different load or usage profiles and to determine the overall affect on the vehicle and its performance. Tracked vehicles present a number of challenges, however, due to the large number of interactions between all the track and suspension components. Prior methods for analyzing tracked vehicle performance through M&S led to either simplified vehicle models or very long compute times due to the level of detail required to properly model tracked vehicles. RecurDyn offers a number of potential benefits by using a recursive dynamic formulation which takes advantage of the fact that every track shoe is the same and that each track segment is connected to one another in the same manner. The software exploits this symmetry to greatly reduce model development times, complexity, and computational run times. RecurDyn features a user-friendly, graphical user interface (GUI), or front end, and a track-building toolkit (a.k.a. Trackbuilder). This front end saves time building the models by eliminating repeated processes, allowing the user to define one track segment and repeat it around the track loop. The software package also includes a built-in control program called CoLink, which can be used to control and drive vehicle models. A methodology and library of standard templates were developed by the author to enhance the usability of RecurDyn specific to tracked vehicles. The end result is a dramatic decrease in tracked vehicle model build and run times, which in many cases makes simulation a faster, more cost effective option than the build-test-break-fix-test cycle of the past. These methodologies and templates are intended to serve as a reference for future TARDEC engineers learning to model tracked vehicles. To date, these templates include: path following terrain profiles, NATO double lane change, side slopes, performance on grades, and steady state turning circles. Additional events will be programmed as needed and added to the library. The final conclusion of this effort is that RecurDyn is both useful and powerful, and that RecurDyn may be the future for 3-Dimensional multi-body dynamics M&S work for tracked vehicles. Read more here: https://enginsoftusa.com/pdfs/Track-Vehicle-Dynamics-at-US%20Army-with-RecurDyn.pdf

CFD study to optimize the cooling performance of a narrow specialty tractor

Constant demand for improved engine performance has led to an increase in the heat fluxes through vehicle cooling systems, pushing their design to the limit. In agricultural vehicles, especially in specialty tractors where the hood design is very tight, this cooling problem is compounded: the low vehicle speed, higher operating temperatures and the dirty environment all have a negative impact on cooling performance. In this technical article, a CFD study of various designs for four different specialty tractors: two brands of specialty tractors for vineyard configurations, and two brands of specialty tractors for orchard configurations, are described. The analysis evaluated the heat flow rate distribution in the hood openings, the flow over the cooling packs and their heat dissipation, as well as the flows and the temperature in the underhood and over the cabin, in order to improve the overall cooling performance and operator comfort and safety. The study revealed the strengths and weaknesses in the original design as well as in the subsequent modifications, allowing the thermal management to be improved prior to prototype testing, speeding up the design process and saving time and money. See the full case study here: https://enginsoftusa.com/pdfs/CFD-Analysis-Case-Study-Argo-Tractors.pdf

Lunar Base Case Study – EnginSoft CFD experts investigate the characteristics of a greenhouse module for a future lunar base

CFD Consulting Study of Greenhouse Module for Space System

This feasibility study has been carried out to investigate and develop the characteristics of a greenhouse module for a future lunar base
To increase the possibilities for humans to explore space, the development of bio-regenerative life support systems is essential: these systems must fulfill all human needs to sustain a sufficient living condition. In this contest, a greenhouse module is the fundamental part of every concept for a stable and independent base in future space missions. Indeed a greenhouse can (re-)generate essential resources for humans by closing different loops within a habitat, like waste water recycling, CO2 reduction, food and O2 production. Full case study is at: https://enginsoftusa.com/CFD-Consulting-Study-Space.html