Steady state acceleration

1. Purpose

It is used to determine the force generated by components, equipment and other electrical and electronic products subjected to a steady-state acceleration environment, such as the adaptability of the structure and the force generated by the light-loaded tools, rotating machinery and projectiles of the running vehicle performance

2. Test conditions

2.1 Overview: When a centrifuge is used to generate steady-state acceleration, the direction of acceleration points to the center of the rotating system. In some special cases, because some samples may be sensitive to rotating couples, and only a machine capable of producing linear acceleration can be used for this kind of test, the relevant specifications should explain this.

2.2 Tangent acceleration: When the speed of the centrifuge increases from zero to the specified value, or decreases from the specified value to zero, the centrifuge should be controlled so that the tangential acceleration experienced by the sample is not greater than 10% of the specified steady-state acceleration value.

2.3 Acceleration gradient: The size of the centrifuge relative to the sample should be such that no part of the sample is subject to a tolerance exceeding ±10% of the steady-state acceleration value. In other cases, the specified steady-state acceleration tolerance is -10% ~ + 30%.

3. Test procedure:

Except as otherwise specified in the relevant specifications, the samples shall be tested in two opposite directions of the three mutually perpendicular axes in sequence.

3.1 The high heart machine should be able to produce the speed required for the specified acceleration value.

3.2 After the required speed is reached, it should be maintained for not less than 10 s or the time specified in the relevant specifications.

3.3 The relevant specifications shall specify the following functional conditions or acceleration wrinkles that must be met at the corresponding acceleration level.

3.4 Matters needing attention:

a) The samples should work within the performance limits of the relevant specifications;

b) The sample does not necessarily work within the performance limits specified by the relevant specifications, but it must not cause permanent confusion;

c) The sample does not need to work, but it must not cause permanent confusion;

d) Although the sample may be permanently damaged or disordered, it must not be loose.