GearLab Software for Consortium Members
WindowsLDP (Load Distribution Program) is a quasi-static gear design and analysis tool for external and internal spur and helical gear pairs. This software program has been adapted and used extensively by most of the consortium members as the main gear design and analysis tool. WindowsLDP employs computationally efficient and accurate semi-analytical formulations to compute the load distribution between multiple mating teeth of gears. With the predicted load distribution, it computes the loaded transmissio n error, root and contact stress distributions, mesh stiffness functions, tooth forces as well as other design evaluation parameters such as lubricant film thickness and surface temperature. WindowsLDP’s capabilities also include multi-torque analyses and manufacturing robustness analyses. Tooth modifications of various forms can be entered interactively or can be read from the tooth surface measurements. The results are presented by an interactive graphical user interface that provides the user the flexibility to process and present them in desired formats. Click here for more information.
RMC (Run Many Cases) is designed to take advantage of LDP's capability to provide a macro-level design capability for external spur and helical gear pairs. RMC considers user-defined ranges of basic gear design parameters including number of teeth, pressure angle, helix angle, tool addendum and dedendum, and face width etc. to generate a large number of candidate gear designs meeting the design requirements such as center distance and gear ratio. These candidate gear designs are analyzed by WindowsLDP and evaluated based on design requirements imposed by the user interactively to arrive at an optimal design solution. Click here for more information.
SplineLDP is a quasi-static load distribution program for splines. It is capable of analyzing side fit splines with and without back-side contact or major/minor fit. It computes the contact stress and load distribution for pure torsion, gear loaded, or arbitrarily loaded splines at various torque values. Influence of micro-geometry (profile and lead modification) and index errors can be included in the analysis. Single or multi-torque analysis can be analyzed at a single or multiple rotational positions. Click here for more information.
HAP (Hypoid Analysis Program) is a quasi-static gear load distribution analysis tool for spiral bevel and hypoid gear pairs. It simulates the face-milling and face-hobbing processes to define the gear tooth surfaces from the machine settings and cutter parameters specified by a given special analysis file. HAP incorporates all types of misalignments. It uses the corresponding ease-off topography to determine the unloaded tooth contact lines and the unloaded transmission error. A semi-analyticalmodel that uses the shell theory is used to define the compliance matrix that is used for loaded tooth contact analysis. With the predicted load distribution, HAP computes the loaded transmission error, contact stresses and the contact pattern of the gear pair. The results are presented by an interactive graphical user interface that provides user the flexibility to process and present them in desired formats.