Simulation Calculation Method of Deviation Frequency Characteristics of High-Strength Two-Stage Leaf Spring Suspension System with Gradual Stiffness
A technology of simulation calculation and leaf spring suspension, which is applied in the field of vehicle suspension leaf springs, can solve the problem that the calculation of the stiffness characteristics of high-strength two-stage gradient stiffness leaf springs is very complicated, and the high-strength two-stage gradient stiffness leaf spring suspension is not given. System bias frequency characteristics and other issues
Inactive Publication Date: 2018-12-07
SHANDONG UNIV OF TECH
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since the stiffness of the high-strength two-stage gradual stiffness leaf spring is not only related to the structural parameters of the main spring, the first-level auxiliary spring and the second-level auxiliary spring, but also related to each contact load, and the contact length and gradual stiffness during the gradual contact process Both change with the load, so the calculation of the stiffness characteristics of the high-strength two-stage gradient stiffness leaf spring is very complicated
For the simulation calculation of the bias frequency characteristics of the high-strength two-stage gradient stiffness leaf spring suspension system with a given design structure, it is also restricted by the key problem of contact load simulation calculation. Simulation Calculation Method for Bias Frequency Characteristics of High-strength Two-Stage Gradual Stiffness Leaf Spring Suspension System
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0054] Embodiment: the width b=63mm of a certain high-strength two-stage gradient stiffness leaf spring, half L of the saddle bolt clamping distance 0 =50mm, elastic modulus E=200GPa. The total number of pieces of the main and auxiliary springs is N=5, where the number of main reeds is n=2, and the thickness of each piece of the main spring is h 1 =h 2 =8mm, the length of half of each piece of the main spring is L 1T =525mm, L 2T =450mm; half of the clamping length is L 1 = L 1T -L 0 / 2=500mm, L 2 = L 2T -L 0 / 2=425mm; the design value H of the initial tangent arc height of the main spring gM0 = 112.2mm. The number of sheets of the first secondary spring m 1 = 1 piece, thickness h A11 =11mm, half length is L A11T =360mm, half of the clamping length L A11 = L 3 = L A11T -L 0 / 2=335mm; the design value H of the initial tangent arc height of the first secondary spring gA10 = 22.8 mm. The number of pieces of secondary secondary spring m 2 = 2 pieces, the thickn...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a simulation calculation method for bias frequency characteristics of a high-strength two-stage gradually changing stiffness leaf spring suspension system, and belongs to the technical field of vehicle suspension leaf springs. According to the structural parameters of each main spring and auxiliary spring, the modulus of elasticity, the design value of the initial tangent arc height of the main spring and auxiliary spring, no-load and rated load, the present invention can provide a high-strength two-stage gradient stiffness leaf spring suspension system Offset frequency characteristics are simulated and calculated. Through prototype simulation and vehicle ride comfort test, it can be seen that the simulation calculation method of the deviation frequency characteristics of the high-strength two-stage gradient stiffness leaf spring suspension system provided by the present invention is correct, and the suspension deviation frequency simulation calculation method under a given load The values are in good agreement with those verified by experimental tests. This method can be used to obtain accurate and reliable suspension bias frequency simulation calculation values to ensure that the leaf spring meets the design requirements of the suspension bias frequency characteristics, thereby improving the design level, quality and performance of the product and the ride comfort of the vehicle; at the same time, reducing the design and Test costs, speed up product development.
Description
technical field [0001] The invention relates to a vehicle suspension leaf spring, in particular to a simulation calculation method for the deviation frequency characteristic of a high-strength two-stage gradient stiffness leaf spring suspension system. Background technique [0002] With the emergence of high-strength steel plate materials, high-strength two-stage gradient stiffness leaf springs can be used for vehicle suspension, so as to further meet the design requirements that the suspension gradient bias frequency remains unchanged under different loads. Among them, the high-strength two-stage gradient stiffness The bias frequency characteristics of the leaf spring suspension under different loads have an important impact on the ride comfort and safety of the vehicle. Since the stiffness of the high-strength two-stage gradual stiffness leaf spring is not only related to the structural parameters of the main spring, the first-level auxiliary spring and the second-level au...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F16F3/02F16F1/18F16F1/26G06F17/50
CPCF16F1/185F16F1/26F16F3/023F16F2238/022G06F30/15G06F30/17
Inventor 周长城汪晓于曰伟赵雷雷杨腾飞袁光明陈海真
Owner SHANDONG UNIV OF TECH