Method for evaluating durability of integrated transmission device based on load spectrum
A transmission device and load spectrum technology, which is applied in the field of comprehensive transmission device durability evaluation based on load spectrum, can solve the problems of lack of the theoretical method of the whole machine durability evaluation and so on.
Inactive Publication Date: 2018-12-18
CHINA NORTH VEHICLE RES INST
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[0004] The technical problem to be solved by the present invention is: how to provide a comprehensive transmission durability evaluation method based on the load spectrum, so as to solve the problem of lack of theoretical methods for the overall durability evaluation of the existing comprehensive transmission device
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[0056] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0057] A kind of comprehensive transmission device durability evaluation method based on load spectrum provided by the invention comprises the following steps:
[0058] Step 1. According to the structural characteristics of the integrated transmission device, obtain the component working load test plan.
[0059] according to figure 1 Measuring points shown, placement of specific sensors. Test 4 torque signals, fan drive input torque T 1 The time history of (the time history refers to the input torque T 1 The time spent in the process), the left bus output torque T 2 The time history of the right busbar output torque T 3 The time history of the steering mechanism output torque T 4 The time history of 3 speed signa...
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The invention relates to a method for evaluating the durability of an integrated transmission device based on a load spectrum, relating to the technical field of the durability of transmission devicesof tracked vehicles. The method for evaluating the durability of the integrated transmission device based on the load spectrum, which is provided by the invention, changes the situation that there isno unified load spectrum for calculating the durability of an integrated transmission machine, the calculation of the durability of all parts and components cannot be correlated and matched, and there is no method reference for evaluating the durability of the machine, thus fundamentally solving the technical problem of quantitative calculation of the durability of integrated transmission, and providing the technical foundation for the life design of all parts, components, and so on of the integrated transmission device. By using the invention, the design of all parts and components of the integrated transmission device, including gears, shafts, bearings and so on is optimized to have a unified load spectrum, and the change rules of the stress of the key positions and weak parts can be acquired by analysis of Computer Aided Engineering (CAE) technology, thus the calculation efficiency is improved. A mathematical model for durability evaluation of the integrated transmission device isestablished to acquire a result of quantitative evaluation of the durability.
Description
technical field [0001] The invention relates to the technical field of durability of a transmission device of a crawler vehicle, in particular to a method for evaluating the durability of a comprehensive transmission device based on a load spectrum. Background technique [0002] The integrated transmission is a commonly used transmission system for tracked vehicles, and generally has positive differential, negative differential and zero differential transmission systems. The zero-differential hydromechanical integrated transmission device is the current mainstream transmission type. Although the structure of the integrated transmission device is complex, its structural parts are divided into gears, shafts, and bearings. These transmission components work organically and coordinately to complete various functions and performances such as direct driving and steering of the integrated transmission. At present, the evaluation of the durability of the comprehensive transmission ...
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IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 张金乐王成邹天刚郭静毛飞鸿黄宏游杨阳钟薇侯威张晓萍
Owner CHINA NORTH VEHICLE RES INST