PHYSICS-APPLICATION SCREW
Women Graduates are trained with basics in Industry application from basic science Mathematics, Physics, Chemistry
Training in application Software by Industry Professional, to train others with preparation as TRAINER to empower.
Empowering areas are ACADEMIC SERVICE-ENTREPRENEURSHIP-DESIGN SERVICE-INDUSTRIES-SOCIAL ENGINEERING
AIM of this training is to get employment directly or indirectly from Industries, Government organization either state or central bodies. Also to develop or support rural industries & other application industries either as induvial or self group
APM SCREWSModule for calculating non-ideal screw gears
Module for calculating non-ideal screw gears
APM Screw is based on the non-ideal contact theory
The main advantage of the APM Screw module is that with its help at the design stage it is possible to take into account the influence of manufacturing errors on the parameters of the screw drive. This became possible thanks to the new theory of non-ideal contact, developed at the STC APM and having no analogues in the world. It is applicable to a wide range of machine elements, such as rolling bearings, screw gears, flat joints, rolling and sliding guides, etc.
Due to the presence of roughness and shape errors in the contact surfaces, the interaction of the screw, nut and rolling elements is random and can only be correctly described using probabilistic methods. The use of APM Screw provides the user with a complete and comprehensive picture of the processes that occur during the operation of a screw drive. In fact, the Screw module allows you to simulate the behavior of a screw drive under given conditions.
The developed modeling methods are based on the analysis of the contact interaction of bodies and raceways in the form of contact forces. The values of these forces depend on the processing errors of the elements involved in the contact and their relative location. The solution in this formulation makes it possible to obtain output parameters in the form of not only average values, but also scattering values.
APM Screw is based on the non-ideal contact theory
The main advantage of the APM Screw module is that with its help at the design stage it is possible to take into account the influence of manufacturing errors on the parameters of the screw drive. This became possible thanks to the new theory of non-ideal contact, developed at the STC APM and having no analogues in the world. It is applicable to a wide range of machine elements, such as rolling bearings, screw gears, flat joints, rolling and sliding guides, etc.
Due to the presence of roughness and shape errors in the contact surfaces, the interaction of the screw, nut and rolling elements is random and can only be correctly described using probabilistic methods. The use of APM Screw provides the user with a complete and comprehensive picture of the processes that occur during the operation of a screw drive. In fact, the Screw module allows you to simulate the behavior of a screw drive under given conditions.
The developed modeling methods are based on the analysis of the contact interaction of bodies and raceways in the form of contact forces. The values of these forces depend on the processing errors of the elements involved in the contact and their relative location. The solution in this formulation makes it possible to obtain output parameters in the form of not only average values, but also scattering values.
Features of the APM Screw module
APM Screw allows, taking into account manufacturing errors, to calculate the following parameters:
- displacement (rigidity);
- durability;
- moment of friction;
- the highest contact stresses;
- power loss;
- heat dissipation;
- forces acting on the rolling elements;
- efficiency;
- positioning errors.
Features of the APM Screw module
APM Screw allows, taking into account manufacturing errors, to calculate the following parameters:
- displacement (rigidity);
- durability;
- moment of friction;
- the highest contact stresses;
- power loss;
- heat dissipation;
- forces acting on the rolling elements;
- efficiency;
- positioning errors.
Calculations can be made for any combination of external loads, namely axial and radial forces and bending moment, as well as axial and radial preload, allowed for the type of screw drive under consideration. When determining the durability, not only constant, but also time-variable external force factors can be taken into account.
To carry out calculations, it is necessary to know only the tolerance values, which allows using the APM Screw at the design stage of new equipment. By performing a series of calculations, it is possible to choose the rational dimensions of the transmission and the value of the optimal preload.
Calculations can be made for any combination of external loads, namely axial and radial forces and bending moment, as well as axial and radial preload, allowed for the type of screw drive under consideration. When determining the durability, not only constant, but also time-variable external force factors can be taken into account.
To carry out calculations, it is necessary to know only the tolerance values, which allows using the APM Screw at the design stage of new equipment. By performing a series of calculations, it is possible to choose the rational dimensions of the transmission and the value of the optimal preload.
The results of the calculation are presented in various ways, namely in the form:
- tables with statistical characteristics;
- histograms of displacement components;
- spatial field of positions of the center of the nut.
Appropriate forms of presentation make it possible to obtain a comprehensive description of the movement of the helical gear.
The results of the calculation are presented in various ways, namely in the form:
- tables with statistical characteristics;
- histograms of displacement components;
- spatial field of positions of the center of the nut.
Appropriate forms of presentation make it possible to obtain a comprehensive description of the movement of the helical gear.