EN 61373 振動試験 / IEC 61373 鉄道車両の振動試験

EN 61373振動試験方法は、鉄道の動作環境の性質上、その後振動や衝撃を受ける鉄道車両で使用される機器の試験項目の要件を指定します。デバイスの品質が許容範囲内であることを保証するには、妥当な期間のテストに耐え、予想される寿命全体にわたって使用条件をシミュレートする必要があります。

Simulated long life testing can be implemented in a number of ways, each with their own advantages and disadvantages, the following are the most common:
a) Amplification: the amplitude increases and the time base decreases;
b) Time compression: keep the amplitude history and reduce the hour base (increase the frequency);
c) Extraction: When the amplitude is lower than the specified threshold, the time slice of historical data is deleted.

The standard is primarily concerned with rolling stock on fixed track systems. However, its wider use is not ruled out. For systems using pneumatic tyres or other transport systems such as trolleybuses, suppliers and customers must agree on the level of testing at the tender stage.

テストシーケンス

Vertical, transverse and longitudinal simulated long-life testing by increased random vibration; followed by vertical, transverse and longitudinal shock testing; followed by transportation and handling (when identified/agreed) and finally by vertical, transverse and longitudinal functional random testing.
The test sequence can be changed to minimize re-jigging. The test sequence should be recorded in the report and should be compared during the simulated long life test using a time transfer function in order to determine if any changes have occurred in the simulated long life test.

機能的ランダム振動試験条件

テストの重大度と周波数範囲

Shaker systems shall be tested according to the relevant root-mean-square values and frequency ranges shown in Table 1. When the installation direction of the device is unclear or unknown, the test should be carried out on three axes, with the vertical axis giving the root-mean-square value.

機能振動試験の期間

Note 1: The purpose of this test is to demonstrate that the device under test is not affected by the test levels applied, which represent the expected level of use.
Note 2: Imagine that these tests are usually no less than 10 minutes long.
The duration of the functional vibration test shall be sufficient to enable all specified functions to be performed.

不規則な振動レベルを上げた状態での長寿命試験のシミュレーション

テストの重大度と周波数範囲

When the installation direction of the device is unclear or unknown, the device shall perform the vertical test level of Table 2 on all three axes.

加速振動試験の期間

All categories of equipment should undergo a total conditioning time of 15 hours. This should usually be divided into 5 hours of conditioning time on three axes perpendicular to each other. If the problem of overheating of the equipment is found during the test (such as vibration of rubber parts, etc.), the test is allowed to stop for a period of time in order to return the equipment to normal. However, it must be noted that the total duration of 5hl vibration should be achieved. If the test stops, this should be stated in the report.

Note 1: The device does not need to work during this test.
Note 2: Vibration amplitude can be reduced with prior consent.

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