With the development of science and technology and the improvement of people's living standards, elevator, as an indispensable and important equipment in high-rise buildings and public places, has been widely used. After more than 100 years of development, there is a high degree of industry concentration in the global elevator industry. Otis, Mitsubishi, Kone, Schindler and some other brands have gradually become well-known brands of global elevators and occupy a large share of the global market. Due to the imbalance of social and economic development, there exists huge difference among the global elevator markets. The elevator industry in developed countries such as Europe, America and Japan started earlier. At present, the number of elevators has reached about one for every 200 people. However, due to the slow growth of population in recent years, the number of elevators is basically stable. In China, Southeast Asia, the Middle East and other countries and regions, the elevator industry started late and has a relatively low per capita elevator amount. However, in recent years, their economy has been growing rapidly. Infrastructure construction has been vigorously developed, and the demand on elevator has been growing rapidly as well, in which these countries have become an important new elevator consumption market in the world.

In the 21st century, the technical and management level of a group of national elevator enterprises have increased significantly, including Canny Elevator, SJEC, Yuanda Intellectual, IFE Elevator and several national elevator enterprises with considerable scale. These enterprises have quickly improved the development, design, manufacture, installation and maintenance of the elevator, to complete the business chain construction, especially in the low speed elevator products. With the higher ratio of performance to price, the foreign brand monopoly has gradually been broke in the Chinese elevator market.

Mechanical performance analysis of elevator structure, including strength and stiffness analysis, modal analysis, PSD random vibration analysis, drop analysis, impact analysis, fatigue analysis, etc.

Hydraulic performance analysis of elevator, including Thermal analysis of control cabinet and frequency converter, high speed aerodynamic analysis, etc.

Elevator control system simulation: circuit simulation of the system, EMC/EMI analysis of the main control board, etc.

3.1 The strength, stiffness and vibration of the elevator

3D model import: ANSYS is specialized in the imported model, no matter the parts or the assembly. The model can be imported either through intermediate format file, or directly by the corresponding interface (interface module) into the 3D model software, which can realize real-time two-way transconductance model, and implementation model information condition, to keep the original parametric data, for the subsequent optimization design.

Modeling and model repair: ANSYS's SpaceClaim software, based on the idea of direct modeling, is more convenient to establish three-dimensional solid model or finite element model (beam element extraction, intermediate surface, internal and external fluid, spot welding, etc.), as well as model repair (chamfer removal, filling, interference surface, etc.) and other operations, and the interface is operated more easily for users.

Convenient operation interface: The analysis process of ANSYS is unified and integrated in the workbench platform. The clarity and logicality of process are strong. Various analysis types (such as structural stress analysis, modal analysis, random vibration analysis and fatigue analysis) are unified and carried out in the workbench platform, so the data conversion is very convenient.

Meshing: For mesh types, ANSYS has one dimensional mesh, two dimensional mesh (triangular/quadrilateral), and three dimensional mesh (tetrahedral/hexahedral/wedge). And the grid control methods are similar, including topology optimization, damage tolerance, expansion layer, high quality shell grid, etc. ANSYS is very skillful in grid control. Besides ANSYS meshing, ANSYS ICEM CFD, another powerful grid software, is added.

Multi-physical field coupling: The Workbench platform of ANSYS combining several items into a single form, which are structure, electromagnetic and fluid analysis, and it’s absolutely perfect operating platform for multi-physical field coupling.