Outstanding Performance Under Rigorous Testing

— Mechanical Performance Test Record of the JWZ-TK-6A Vibration Isolator by Xi’an Hoan Microwave Co., Ltd.

  In the application of precision instruments and electronic equipment, even slight vibrations may lead to performance degradation or system failure. As a key component connecting equipment and its mounting base, the performance of a vibration isolator directly affects the reliability of the entire system.

  In order to verify whether the independently developed JWZ-TK-6A vibration isolator can maintain excellent performance under complex mechanical environments, Xi’an Hoan Microwave Co., Ltd. recently conducted a comprehensive and rigorous mechanical environmental test on this model. This article takes you into the testing site to see what challenges this vibration isolator experienced and how it performed.

Test Background: Why Conduct Mechanical Environmental Testing?

  Vibration isolators are typically installed between equipment and supporting structures to attenuate vibrations and shocks from external sources. Whether it is the bumps during transportation or vibrations generated during equipment operation, these forces may be transmitted to the isolator through mounting points.

  If the vibration isolator is improperly designed or lacks sufficient strength, structural damage, vibration-isolation failure, or even damage to the protected equipment may occur.

  Therefore, before finalizing the product design, it is essential to simulate possible mechanical conditions encountered in real operating environments and conduct strict validation tests.

  According to the technical requirements provided by the commissioning unit, this test carried out a complete mechanical environmental test on a JWZ-TK-6A vibration isolator sample, including:

                                                         Random vibration test

                                                         Sine sweep vibration test

                                                         Shock test

  These tests comprehensively evaluated the structural strength and dynamic characteristics of the isolator.

Test Sample: JWZ-TK-6A Vibration Isolator

  The tested sample was a JWZ-TK-6A vibration isolator manufactured by Xi’an Hoan Microwave Co., Ltd. The weight of the equipment was 24 kg.

                                                        Sample No.: J21-H1236-01

                                                        Date received: August 6, 2024

                                                        Test date: August 7, 2024

  Before the test, technicians carefully inspected the appearance and structure of the sample. The results showed:

                                                        No scratches or corrosion on the surface

                                                        All connection parts were firmly fastened

                                                        Clear identification marks

                                                        Overall condition was good

  The sample was unpackaged and directly mounted on the test fixture.

Test Information
Sample Information

Test Basis and Methods
Test Basis
  XAGT/CXJ005.02-01-J21-H1236 Test Commission Sheet

Test Methods
  1. Random Vibration Test

Test direction: Vertical
Duration: 54 minutes

  2.Sine Sweep Test

Test direction: Vertical

Duration: 15 minutes (back and forth sweep)

  3.Shock Test

Test Process: Real-Time Monitoring and Precise Control

  On the test day, technicians firmly mounted the sample on the vibration table and shock table and attached acceleration sensors.

  Once the control commands were issued, the vibration table began operating according to the preset spectrum.

  During the random vibration phase, the control software displayed the power spectral density curve in real time and compared it with the target spectrum to ensure that the error remained within the allowable range.

  During the sweep phase, the response curve of the sample was displayed on the screen, allowing engineers to clearly observe the resonance peaks and their amplitudes.

  During the shock test, a high-speed data acquisition system captured the waveform of each pulse, confirming that the half-sine shape, peak value, and pulse width all met the required specifications.

  Throughout the entire test process:

                                                           All equipment operated normally

                                                           No abnormal noise or looseness occurred

                                                           The sample remained stable on the fixture

                                                           No displacement or detachment occurred

Test Sequence
1.Pre-test appearance and structural inspection

2.Random vibration test

3.Sine sweep test

4.Shock test

5.Sine sweep test

6.Random vibration test

7.Post-test appearance and structural inspection

Test Equipment

Test Results: Data Demonstrates Excellent Performance
  After 54 minutes of random vibration, two sweep tests, and three shock tests, the sample underwent a final appearance and structural inspection. The results were satisfactory:

  1.Intact appearance
  No new scratches, dents, or corrosion were found, and all markings remained clear.

  2.Stable structure
  All threaded connections remained firmly tightened, with no signs of loosening or deformation.

  3.Consistent dynamic characteristics
  Comparison of the sweep curves before and after the shock test showed nearly identical resonance frequencies and amplitudes, indicating that the shock did not cause any internal structural damage. The stiffness and damping characteristics remained stable.

  4.Test curves met requirements
  The actual random vibration spectrum matched the target spectrum well. The shock response waveform closely approximated an ideal half-sine wave, with accurate peak values and pulse widths.

  Figures 6–12 illustrate these measured curves and visually demonstrate the applied test stresses.

  It should be noted that the functional performance of the sample (such as vibration isolation efficiency and electrical performance) will be further tested by the commissioning unit. This test provides a reliable environmental test basis for subsequent evaluation.

  From a mechanical perspective, the JWZ-TK-6A vibration isolator successfully passed all tests.

Test Conclusion: A Reliable Vibration Isolation Product
  The mechanical environmental test of the JWZ-TK-6A vibration isolator from Xi’an Hoan Microwave Co., Ltd. strictly followed the requirements of the test commission sheet. The testing process was standardized, the data were complete, and the conclusions were clear.

Conclusions:

  1.All test items were successfully completed, including random vibration, sweep vibration, and shock tests, with no abnormalities during the process.

  2.Structural integrity remained unaffected. Post-test appearance and structural inspection showed no noticeable changes compared with the pre-test condition.

  3.The sample maintained a stable condition and can be delivered to the commissioning unit for further functional testing. The test data provide important references for performance evaluation.

  In conclusion, the JWZ-TK-6A vibration isolator demonstrated excellent performance under rigorous mechanical environments, with high structural strength and stable dynamic characteristics. It can meet the requirements of most complex working conditions.

  Xi’an Hoan Microwave Co., Ltd. will continue to uphold the spirit of excellence and provide customers with more reliable products and services.

Test Conclusion (Summary)
  The applied test stress met the requirements of the XAGT/CXJ005.02-01-J21-H1236 test commission sheet.

During the test:

                         All test equipment operated normally

                         Records were complete

                         The applied stresses were valid

Final conclusions:

                         1.The sample completed the random vibration test, sweep test, and shock test according to the specified conditions.

                         2.After the test, visual inspection at room temperature showed no obvious changes in appearance or structure compared with the pre-test condition.

                         3.The functional performance of the sample will be tested by the commissioning unit.

Test Photos

Applied Stress Curve