Research On The Matching Of A Light Truck Powertrain Suspension System

Light truck powertrain typically located under the cab via the frame connection,when the poor suspension performance powertrain vibration isolation system,vibration and noise of the engine directly through suspension-to pass the cab car-Frame in the driver's position.So for light trucks Vibration and Noise Reduction,a key powertrain mounting system.This paper from the powertrain mounting system that matches the light trucks starting to study the vibration and noise reduction methods,improve NVH performance.The main contents include the following five parts.1.a large number of relevant literature at home and abroad,summed automobile powertrain mounting arrangement of the development process and methods,described in detail the development process and current situation of the suspension system to match.2.the kind of car were thoroughly test vehicle,the source of vibration test and performance test study powertrain suspension system,Diagnosis Noise and Vibration and major components,including vehicle test conditions of set conditions and with conditions.A powertrain mounting system matches the pointing direction lay experimental basis.3.outlining powertrain mounting system optimized to match the idea of the dynamic model of powertrain mounting system.Powertrain mount optimization process overview and basic research.The theoretical foundation for the optimization of powertrain mounting system.4.summarized powertrain mounting parameter identification method,the principle of summary quality line method.Parameter Identification built Powertrain test bench,and a parameter identification tests.Optimization theory based on matching powertrain mounting system to match and optimize the proposed three-way Each suspension stiffness,coupled energy and test the optimized distribution.5.The optimal matching of the results,were suspended sample loading and trial work,and after the test to improve the vibration transmissibility of each mount point,noise and vibration data car key positions.The experiment shows the validity of the suspension optimization.In this paper,experimental testing and powertrain mounting system optimization means for calculating a combination of a light truck powertrain mounting system matching and optimization,and ultimately formed a relatively complete research methods and processes related engineering It has important theoretical and experimental reference value.