Simulation evaluation method for vibration of variable-frequency single-rotor compressor
A single-rotor compressor, simulation evaluation technology, applied in the field of air conditioning, can solve the problem of low accuracy of the compressor vibration evaluation method, achieve the effect of shortening the matching cycle and improving accuracy
Active Publication Date: 2021-08-10
四川长虹空调有限公司
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Problems solved by technology
[0004] The present invention aims to solve the problem of low accuracy of existing compressor vibration evaluation methods, and proposes a simulation evaluation method for frequency conversion single-rotor compressor vibration
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Embodiment
[0037] The simulation evaluation method of frequency conversion single-rotor compressor vibration described in the embodiment of the present invention, such as figure 1 shown, including the following steps:
[0038] Step 1. Calculate the compressor load of the compressor to be tested at each operating frequency point, the compressor load includes the rotational inertia moment and the unbalanced force, and the unbalanced force includes the unbalanced force amplitude and unbalanced force phase value;
[0039] In this embodiment, the method for calculating the rotational moment of inertia of the compressor to be tested at each operating frequency point includes: obtaining specific parameters of the compressor to be tested and state data of the compressor to be tested at each operating frequency point, The specific parameters of the compressor include: compressor piston diameter, compressor cylinder height, compressor eccentricity, compressor cylinder volume and compressor cylind...
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The invention relates to the technical field of air conditioners, discloses a simulation evaluation method for vibration of a variable-frequency single-rotor compressor, and aims to solve the problem that an existing compressor vibration evaluation method is low in accuracy. The method comprises the steps of calculating the compressor load of a compressor to be tested at each operation frequency point, wherein the compressor load comprises rotational inertia moment and unbalanced force; establishing a finite element model of the to-be-tested compressor, setting boundary conditions of the finite element model, and performing simulation calculation according to the finite element model to obtain the inherent frequency of the to-be-tested compressor; loading the compressor load at each operation frequency point into the finite element model, and carrying out simulation calculation to obtain amplitude-frequency response data of an air suction port of the compressor to be tested at each operation frequency point; and judging whether the vibration of the compressor to be detected is qualified or not according to the inherent frequency and the amplitude-frequency response data. The matching period of the variable-frequency compressor and the air conditioner pipeline is shortened, the vibration evaluation accuracy is improved, and the invention is suitable for the variable-frequency single-rotor compressor.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to a method for simulating and evaluating the vibration of a variable frequency single rotor compressor. Background technique [0002] The compressor is the core of the air conditioner, and it is also the main source of vibration and noise caused by the air conditioner. The vibration and noise of the air conditioner pipeline caused by the vibration of the compressor has become a difficult and painful point in the development of air conditioners, especially the frequency conversion single rotor compressor. , The problem of vibration and noise on the air conditioner is more prominent. [0003] At present, the way to match the compressor and the air conditioner is to match the performance first, and then perform the vibration and noise test after the performance test is passed. If the vibration and noise test fails, the pipeline structure is rectified, and the vibration and no...
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IPC IPC(8): G06F30/17G06F30/23G06F30/27G06N3/12G06F111/06G06F119/08G06F119/14
CPCG06F30/17G06F30/23G06F30/27G06N3/126G06F2111/06G06F2119/08G06F2119/14
Inventor 李磊鑫李越峰董维邱名友
Owner 四川长虹空调有限公司