CN-121980780-A - Optimization method for obtaining thickness of upper beam material of elevator, computer product and storage medium using optimization method

CN121980780ACN 121980780 ACN121980780 ACN 121980780ACN-121980780-A

Abstract

The application relates to an optimization method for obtaining the thickness of an upper beam material of an elevator, and a computer product and a storage medium using the optimization method, wherein the optimization method comprises the following steps of setting the thickness of an upper beam drawing of an existing single rope return wheel as an output parameter t; according to the input elevator basic parameters, calculating the bending moment born by the upper beam, setting a safety coefficient, selecting the material thickness of the upper beam (selected from the minimum thickness) and the section attribute of the upper beam with the corresponding thickness, calculating the actual safety coefficient, outputting the plate thickness parameters if the actual safety coefficient is larger than the safety coefficient, otherwise returning to the plate thickness selecting process. According to the application, various relevant parameters of the upper beam plate are dynamically obtained according to input conditions, and the strength of the upper beam is accurately controlled according to set conditions, so that the problems of incomplete consideration, dependence on manual work and excessive calculation of strength influence factors of the upper beam of the single rope return wheel in the prior art are avoided, and the method is suitable for convenient application of the thickness selection of the upper beam material of the elevator.

Inventors

PENG ZHICHAO
SU HUIPING
ZENG QUNJUN

Assignees

广州广日电气设备有限公司

Dates

Publication Date: 20260505
Application Date: 20260109

Claims (10)

1. An optimization method for obtaining the thickness of an upper beam material of an elevator is characterized by comprising the following steps: S1, determining input and output parameters, namely setting basic parameters of an elevator as input parameters and setting the plate thickness of an upper beam drawing as output parameters t; S2, calculating bending moment born by the upper beam, namely calculating bending moment born by the upper beam during working according to the input elevator basic parameters; S3, setting a safety coefficient, namely presetting the safety coefficient required by the upper beam according to the safety standard or design specification of the elevator industry; s4, selecting initial plate thickness and corresponding section properties, namely selecting the material thickness of the upper cross beam from the minimum thickness, and determining the section properties of the upper cross beam corresponding to the thickness; s5, calculating an actual safety coefficient, namely calculating the actual safety coefficient of the upper beam under the current plate thickness by utilizing the bending moment of the step S2 and the section attribute of the step S4 and combining the mechanical property of the material; S6, judging and outputting a result, namely directly outputting the current plate thickness parameter t if the actual safety coefficient is set, and returning to the step S4 if the actual safety coefficient is not met, selecting a larger plate thickness and repeating the subsequent process until the safety coefficient requirement is met.
2. An optimization method for obtaining the thickness of the material of the upper beam of an elevator according to claim 1, characterized in that the basic parameters of the elevator include the elevator load, the elevator width, the decoration weight, the elevator dead weight and the elevator model.
3. An optimized method for obtaining the thickness of an elevator upper beam material according to claim 1, characterized in that the upper beam section properties include section moment of inertia and flexural section modulus.
4. The optimization method for obtaining the thickness of the upper beam material of the elevator according to claim 1, further characterized in that said step S2 specifically comprises the following steps: S41, calculating the maximum bending moment M max born by the upper beam: ; wherein P is the self weight of the elevator car, Q is the load of the car, K is the decoration weight of the car, and L is the width of the car; S42, calculating the bending modulus Wx of the upper beam.
5. The optimizing method for obtaining the thickness of the upper beam material of the elevator according to claim 4, wherein the step S5 specifically comprises the steps of: S51, calculating bending stress sigma: ; Wherein Wx is the bending modulus of the upper beam, and M max is the maximum bending moment received by the upper beam; s52, calculating a safety factor n: ; the calculated safety coefficient is used for comparing with a set safety coefficient.
6. An optimized method for obtaining the thickness of the material of the upper beam of an elevator according to claim 1, characterized in that the upper beam is suspended by traction wire ropes, both ends of which bear the dead weight of the car and the load of the passengers.
7. An optimization method for obtaining the thickness of an elevator upper beam material according to claim 1, characterized in that the mechanical properties of the material include the ultimate strength of the material.
8. The optimization method for obtaining the material thickness of the upper beam of the elevator according to claim 1, wherein the upper beam is of a single rope return wheel structure, and in the step S2, the bending moment suffered by the upper beam is calculated by adopting the input basic parameters of the elevator and the stress structure of the upper beam of the single rope return wheel.
9. A computer program product, characterized in that the computer program product comprises a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, are capable of performing an optimization method of obtaining the thickness of the material of the upper beam of an elevator according to any one of claims 1-8.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, is implemented to carry out an optimization method of obtaining the material thickness of an upper beam of an elevator according to any one of claims 1-8.

Description

Optimization method for obtaining thickness of upper beam material of elevator, computer product and storage medium using optimization method Technical Field The application relates to the technical field of elevator accessory optimization, in particular to an optimization method for obtaining the thickness of an upper cross beam material of an elevator, and a computer product and a storage medium using the optimization method. Background With the continuous acceleration of new technology development of elevators, people have also put higher and higher demands on the comfort of elevator riding. An elevator with a portal frame structure on the market generally comprises a bottom beam at the bottom of a car, a side beam is arranged above the bottom beam, and an upper cross beam is arranged above the side beam. Because the load requirement of the existing elevator is larger and larger, 125% rated load braking test must be carried out before the existing elevator is put into use, each manufacturer is careful in component weight reduction, and for the single rope return wheel upper beam, the prior art is used for determining the material thickness of the upper beam under the condition of load, and the following defects exist: 1. Under partial conditions, over design and redundancy of resources can be caused; 2. under the design of cost reduction, when the components are light, under partial conditions, the mechanical safety coefficient is too low (only higher than the requirement), the safety and experience of customers are affected, and the risk that 125% of rated load braking test cannot be passed is caused; 3. the strength of the upper beam is calculated by using the width limit size and the weight of the car, then the load and the width size are covered downwards, if the size or the weight exceeds the range, the calculation is carried out again by a professional technician, and then the project time is increased without standard. Disclosure of Invention The application aims to solve the technical problems that in the prior art, the consideration of the strength influence factors of the beam on the single rope return wheel is incomplete, manual recheck is needed, and the safety coefficient is too high or lacks optimization to cause resource redundancy. In order to solve the above technical problems, according to one aspect of the present application, there is provided an optimization method for obtaining a thickness of an upper beam material of an elevator, comprising the steps of: S1, determining input and output parameters, namely setting basic parameters of an elevator as input parameters and setting the plate thickness of an upper beam drawing as output parameters t; S2, calculating bending moment born by the upper beam, namely calculating bending moment born by the upper beam during working according to the input elevator basic parameters; S3, setting a safety coefficient, namely presetting the safety coefficient required by the upper beam according to the safety standard or design specification of the elevator industry; s4, selecting initial plate thickness and corresponding section properties, namely selecting the material thickness of the upper cross beam from the minimum thickness, and determining the section properties of the upper cross beam corresponding to the thickness; s5, calculating an actual safety coefficient, namely calculating the actual safety coefficient of the upper beam under the current plate thickness by utilizing the bending moment of the step S2 and the section attribute of the step S4 and combining the mechanical property of the material; S6, judging and outputting a result, namely directly outputting the current plate thickness parameter t if the actual safety coefficient is set, and returning to the step S4 if the actual safety coefficient is not met, selecting a larger plate thickness and repeating the subsequent process until the safety coefficient requirement is met. According to an embodiment of the application, the elevator basic parameters include elevator load, elevator width, decoration weight, elevator dead weight and elevator model. In accordance with an embodiment of the present application, the upper beam cross-sectional properties include a cross-sectional moment of inertia and a flexural section modulus. According to an embodiment of the present application, further, step S2 specifically includes the steps of: S41, calculating the maximum bending moment Mmax of the upper beam: wherein P is the self weight of the elevator car, Q is the load of the car, K is the decoration weight of the car, and L is the width of the car; S42, calculating the bending modulus Wx of the upper beam. According to an embodiment of the present application, step S5 specifically includes the steps of: S51, calculating bending stress sigma: Wherein Wx is the bending modulus of the upper beam, and Mmax is the maximum bending moment received by the upper beam. S52, calculating a safety factor