Shanghai Tuozhi NVH Technology Co., Ltd.
Shanghai Tuozhi Huasheng Technology Co., Ltd. is a globally leading high-tech service enterprise in the field of noise and vibration engineering, integrating design and research & development, simulation verification, testing and analysis, and integration of instrumentation and equipment systems. It mainly focuses on NVH off-line testing and rotating machinery fault diagnosis, providing customers with reliable and efficient solutions.
The team has participated in the development of dozens of types of transmission boxes, electric drives, and reduction gearboxes, and has taken the lead in solving many major NVH problems. It has a complete set of experience and understanding of the entire life cycle of the NVH attributes of drive products, ranging from pre-research, concept prototypes, hand-made prototypes, tooling prototypes, small-batch production to large-scale mass production. It has rich experience in the construction and implementation of the product off-line testing, analysis, management, and evaluation systems. It also has a profound understanding and awareness of the NVH design and development, simulation development, experimental development, and the establishment of the capability system for drive products.
Product 1
Development technology/material/manufacturing process nameAutomotive Rotating Components NVH Production Quality Analysis and Management System
Innovation HighlightsThe NVH EOL TAMS system is a production quality testing, analysis, and management system for the NVH (Noise, Vibration, and Harshness) of automotive rotating components. This system consists of a sensor assembly, a data acquisition front end, and an NVH master control testing, analysis, and management software package. It is designed with professional digital signal analysis algorithms and modules, self-developed acceleration sensors with high stability and high frequency response, a complete evaluation system and a fault warning code system for failure modes, a consistent automatic reporting mode, two methods including traditional self-learning and AI self-learning, as well as customizable report and reporting functions, etc.
ApplicationsOnline production quality inspection, data analysis, fault diagnosis and location, as well as sample process management for components or systems such as electric drive assemblies, transmissions, axles, motors, range extenders, balance shaft housings, reduction gearboxes, various mechanical pumps, various electronic pumps, air compressors, steering gears, electromechanical brakes (EMB), electronic parking brakes (EPB), vehicle horns, window regulators, robot joint modules, and white goods.
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Product 1
Development technology/material/manufacturing process nameDamping material loss factor testing and analysis system
Innovation Highlights·Supports both transverse and longitudinal excitation.
·Automatically generates reports that meet the requirements of the composite E756 standard.
·Supports two vibration measurement methods: laser vibration measurement and electromagnetic induction vibration measurement.
·Supports the automatic generation of damping - frequency - temperature colormap reports.
Adopted Standards:
· ASTM E756-05 2017 Standard Test Method for Measuring Vibration-Damping Properties of Materials
· SAE J1637-202202 Laboratory Measurement of the Composite Vibration-Damping Properties of Materials on a Supporting Steel Bar
· GB/T 16406-1996 Acoustics - Test Method for the Damping Performance of Acoustic Materials by Flexural Resonance
· GB/T 18258-2000 Test Methods for the Damping Performance of Damping Materials
ApplicationsCalculate the loss factor and Young's modulus (longitudinal elastic modulus, tensile elastic modulus) of the damping material itself to reveal the vibration attenuation performance of the damping material.
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Product 1
Development technology/material/manufacturing process nameAcceleration Vibration Sensor Dedicated for the Production Line
Innovation HighlightsThe TZS02B01 sensor kit of Tuozhi Technology is the fourth-generation sensor assembly developed independently by
Tuozhi and dedicated to the production line. It meets the requirement of a frequency response of 12Khz, has a good system vibration isolation rate, and a high linearity of the main spring stiffness. It is of the IEPE type and does not require a charge amplifier. With ceramic insulation at the top, it has excellent anti-interference performance. The sample has successfully completed more than 150,000 compression durability tests without any plastic deformation or tearing. Currently, it has been applied in the End-of-Line (EOL) tests of multiple industries, such as the robot joint modules, high-speed reduction gearboxes of automotive electric drives, and electric drive assemblies.
Applications in the End-of-Line (EOL) tests of robot joint modules, high-speed reduction gearboxes of automotive electric drives, electric drive assemblies, etc.
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