GB/T 39079-2020Inspection and test specifications of large-scale amusement device—Acceleration test (English PDF)

1 Scope

This Standard specifies the general principles, safety and environmental requirements, personnel requirements, instrument and equipment requirements, test and evaluation, and test documents for the acceleration test of large-scale amusement device.

This Standard applies to the acceleration test in the inspection and test of large-scale amusement device.

2 Normative references

The following documents are indispensable for the application of this document.

For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB 8408, Large-scale amusement device safety code

GB/T 20050, Inspection and testing specifications of large-scale amusement device - General principles

GB/T 20306, Amusement devices terminology

3 Terms and definitions

Terms and definitions determined by GB/T 20306 and the following ones are applicable to this document.

7 Instrument and equipment requirements

7.1 Acceleration test instruments and equipment include an acceleration tester and a test dummy. The acceleration tester is generally composed of acceleration transducers, amplifiers, indicators or loggers, and auxiliary devices such as mounting brackets; the test dummy is composed of a dummy body and an acceleration tester.

7.2 For the acceleration test, according to different test purposes and uses, appropriate test instruments or equipment shall be selected.

7.3 The acceleration tester shall meet the following requirements:

a) The range shall not be less than ±10 g (g is the standard acceleration of gravity, which is 9.81 m/s²);

b) The resolution shall not be greater than 2% of the range and not greater than 0.05 g;

c) The non-linearity shall not be greater than 2.5% of range;

d) The transverse sensitivity shall not be greater than 3%;

e) The time resolution shall not be greater than the sampling interval time;

f) The time delay between different data channels shall not be greater than the sampling interval time;

g) It shall have anti-aliasing filtering function;

h) It shall be calibrated regularly.

7.4 In addition to meeting the requirements in 7.3, the test dummy shall also meet the following requirements:

a) The acceleration transducer and other built-in instruments and accessories shall be firmly installed on the dummy body; there shall be no relative movement during the test;

b) The height and weight of the test dummy shall meet the requirements for passenger height and weight in the relevant standards and design documents of large-scale amusement device;

c) The structure and mechanical properties of the test dummy shall meet the requirements for rigidity and strength of large-scale amusement device under various operating conditions. each transducer and the test point shall not exceed 60 mm, and the axis shall be orthogonal.

8 Test and evaluation

8.2.6 The acceleration transducer and related components shall be firmly installed on the to-be-tested amusement ride; no relative movement shall occur during the test.

8.2.7 After installation, the installation position and direction of the acceleration transducer, and the angle between the human body coordinate system and the direction of gravity shall be recorded.