某车型后悬置与电驱动连接螺栓校核_Shanghai Zimao Instrument Technology Co., Ltd

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Smart Fastening

Smart Optics

Zmart is a representative organization of Kistler Remscheid (formerly Schatz) in Germany and AFS Advanced Connection Technology Research Institute in China. It was funded by Zwick China and has a German enterprise background. Its headquarters are located in Shanghai, and it has a joint laboratory for fastening connection technology with Huace Testing in Shanghai.

Smart Fastening

Committed to introducing advanced fastening assembly design, testing and verification technology to assist China in intelligent design and manufacturing. We specialize in providing software and hardware products and services for fastening connections throughout their entire lifecycle.

Smart Optics

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Smart fastening

Friction coefficient testing machine

Ultrasonic axial force testing and analysis system

Thread Assembly Tool Testing System

Smart fastening wrench

Lateral vibration test bench

Simulated assembly test system

Friction coefficient testing machine

The quality characteristics of bolts and nuts during installation have a direct impact on the quality of bolted connections. Functional testing is the most important analytical method used in the assembly process. It determines the mechanical characteristics and functions of the fastening parts to ensure their quality. Simultaneously determine the friction coefficient, preload, and torque. And in this process, comply with international standards and simulate usage conditions as realistically as possible.

Ultrasonic axial force testing and analysis system

Unlike ordinary ultrasonic equipment, the Ifast ultrasonic axial force analysis and testing system Digital acquisition can be performed on the entire tightening process Short or long-term axial force monitoring of bolts Using the German professional fastener analysis and testing software TestXpert in conjunction with Kistler tightening equipment ® Conduct and process analysis

Thread Assembly Tool Testing System

In order to achieve reliable bolt connections in modern industrial production processes, a reliable tightening gun is crucial. Not only must the tightening gun be calibrated and certified before assembly, but it must also be repeatedly tested during the assembly process. The purpose is to ensure continuous high performance in order to achieve optimal assembly results and meet established standards.

Smart fastening wrench

Whether it is a soft connection tightening point or a hard connection tightening point, the torque decreases to varying degrees after completing the tightening process. How to find residual torque and how to find residual axial force has become an urgent problem that every tightening process engineer hopes to solve. The detection of residual torque values requires good tools to ensure the reliability and repeatability of the detection results. KISTLER's New Generation Intelligent Wrench Inspector has comprehensive residual torque testing function There are various built-in testing methods that can customize the detection mode according to customer needs.

Lateral vibration test bench

The lateral vibration test bench is equipped with an adjustable amplitude driving device, which is used for force sensors for lateral loads, high-precision displacement sensors, and sensors that can be replaced according to bolt size to measure clamping force and thread friction. During the vibration test, the test product is installed on the test bench according to the actual construction process, and the test conditions, such as test frequency and amplitude, are set using Kistler software. The experimental system will monitor and record in real-time the attenuation of clamping force, lateral thrust magnitude, thread torque, and other data that you are concerned about. The amplitude and frequency information during the lateral vibration testing process are controlled by the measurement and control unit.

Simulated assembly test system

In assembly testing, it is required that the test results obtained must be free of any "false evidence" - especially, if the position of the fasteners on the required test components is the actual installation conditions, this type of testing is considered challenging.

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Smart Optics

Fully automatic steel bar shape and size measuring instrument

Fully automatic bolt size measuring instrument

Imess

Fully automatic steel bar shape and size measuring instrument

Zimao Intelligent Optical Dimension Measurement is rooted in providing an overall solution for fasteners, strip steel, threaded steel, and round steel. As an industrial foundation, threaded steel has a basic tone for people's livelihood. The fully automatic intelligent optical reinforcement detection system breaks through traditional detection and lays a solid foundation for high-precision intelligent manufacturing Breaking through the pain points of traditional manual offline measurement, switching between multiple measuring tools, and the inability to effectively save and trace data, we aim to create a new scenario for intelligent optical detection. The fully automatic intelligent optical steel bar size detection system (RM) can accurately and quickly measure the transverse and longitudinal ribs, width, height, and other dimensions of various types of ribbed steel bars in multiple scenarios through built-in rich steel bar detection standards. The developed data interface enables the sharing and export of test data in multiple ways

Fully automatic bolt size measuring instrument

A fully automatic optical bolt size measuring instrument developed from Germany for measuring the overall dimensions of fasteners in different industries. This device can automatically measure the geometric shape of rotating samples such as screws and bolts. Whether placed on site or in the laboratory, this equipment can greatly integrate conventional measurement methods, improving measurement efficiency. The convenient management mode of measuring big data will become a reliable choice for fastener enterprises to make a leap in quality.

Imess

Imess is an independent manufacturer of laser and optical camera inspection equipment. Since 1998, the Imess team has solved demanding inspection tasks in optical quality assurance and developed innovative inspection technologies to support your production line in achieving efficient, high yield, and high-quality levels.

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某车型后悬置与电驱动连接螺栓校核

Classification： Media News

Release Time：2026-05-13 16:54

某车型后悬置与电驱动连接螺栓校核

1螺栓连接布置

后悬置与电驱动连接螺栓布置如图，采用3个螺栓连接。

按照图示顺序，对应按照螺栓1，螺栓2，螺栓3的编号。

图片包含漏斗图AI 生成的内容可能不正确。

2螺栓连接载荷分析

后悬置与电驱动连接一般通过adams动力学仿真软件，或其他类似软件可以得出整体的外载荷，可以通过对螺栓孔施加coupling耦合，然后对悬置零件施加adams得出的外载荷，通过有限元提取出每个螺栓的载荷。

载荷工况按照GMW14116标准进行分析，载荷工况说明如下：

Load Case No.	Powertrain Mounting System Analysis Load Cases	'g' load on powertrain X	'g' load on powertrain Y	'g' load on powertrain Z	Torque Acting on Powertrain	Load Case Type
1	Static design position (Under PT self weight )			-1		Typical
2	Max forward engine torque**			-1	See formula (1) below	Typical
3	Max reverse engine torque**			-1	See formula (2) below	Typical
4	Max forward engine torque & forward acceleration**	FWD: 0.5 RWD: 0.6 AWD: 0.7		-1	Load case 2	Typical
5	Max forward engine torque & left cornering**		1	-1	Load case 2	Typical
6	Max forward engine torque & right cornering**		-1	-1	Load case 2	Typical
7	Max forward engine torque & bump**			-3	Load case 2	Typical
8	Max forward engine torque & rebound**		1		Load case 2	Typical
9	Max reverse engine torque & rearward acceleration**	FWD: -0.6 RWD: -0.5 AWD: -0.6		-1	Load case 3	Typical
10	8 KPH front bumper (- 11g)	-11		-1	none	Extreme
11	8 KPH rear bumper (+ 11g)	11		-1	none	Extreme
12	Vertical up loading			4	none	Extreme
13	Vertical down loading			-6	none	Extreme
14	Lateral left loading		-3	-1	none	Extreme
15	Lateral right loading		3	-1	none	Extreme
16	Vertical up & lateral left loading		-3	4	none	Extreme
17	Vertical up & lateral right loading		3	4	none	Extreme
18	Vertical down & lateral left loading		-3	-6	none	Extreme
19	Vertical down & lateral right loading		3	-6	none	Extreme
20	Up rough road			2.5	none	Typical
21	Down rough road			-4.5	none	Typical
22	Forward longitudinal loading	-3		-1	none	Typical
23	Rearward longitudinal loading	3		-1	none	Typical
24	Forward rockcycle / snap-clutch torque**			-1	See formula (3) or (4) below	Extreme
25	Reverse rockcycle / snap-clutch torque**			-1	See formula (3) or (4) below	Extreme
26	1 'g' static powertrain load			-1	none	Typical
27	Forward partial torque**(5/8 Forward WOT)			-1	As stated	Typical
28	Reverse partial torque**(5/8 Reverse WOT)			-1	As stated	Typical

载荷工况编号	动力总成悬置系统分析载荷工况	动力总成'g'载荷 X	动力总成'g'载荷 Y	动力总成'g'载荷 Z	作用于动力总成的扭矩	载荷工况类型
1	静态设计位置（动力总成自重下）			-1		典型工况
2	前进发动机扭矩**			-1	见下方公式(1)	典型工况
3	倒挡发动机扭矩**			-1	见下方公式(2)	典型工况
4	前进发动机扭矩 & 前向加速**	前驱: 0.5 后驱: 0.6 四驱: 0.7		-1	载荷工况2	典型工况
5	前进发动机扭矩 & 左转弯**		1	-1	载荷工况2	典型工况
6	前进发动机扭矩 & 右转弯**		-1	-1	载荷工况2	典型工况
7	前进发动机扭矩 & 颠簸**			-3	载荷工况2	典型工况
8	前进发动机扭矩 & 回弹**		1		载荷工况2	典型工况
9	倒挡发动机扭矩 & 后向加速**	前驱: -0.6 后驱: -0.5 四驱: -0.6		-1	载荷工况3	典型工况
10	8公里/时前保险杠碰撞（-11g）	-11		-1	无	极限工况
11	8公里/时后保险杠碰撞（+11g）	11		-1	无	极限工况
12	垂直向上载荷			4	无	极限工况
13	垂直向下载荷			-6	无	极限工况
14	横向左侧载荷		-3	-1	无	极限工况
15	横向右侧载荷		3	-1	无	极限工况
16	垂直向上 & 横向左侧载荷		-3	4	无	极限工况
17	垂直向上 & 横向右侧载荷		3	4	无	极限工况
18	垂直向下 & 横向左侧载荷		-3	-6	无	极限工况
19	垂直向下 & 横向右侧载荷		3	-6	无	极限工况
20	崎岖路面向上			2.5	无	典型工况
21	崎岖路面向下			-4.5	无	典型工况
22	前向纵向载荷	-3		-1	无	典型工况
23	后向纵向载荷	3		-1	无	典型工况
24	前向急加速/离合器接合扭矩**			-1	见下方公式(3)或(4)	极限工况
25	倒挡急加速/离合器接合扭矩**			-1	见下方公式(3)或(4)	极限工况
26	1'g'静态动力总成载荷			-1	无	典型工况
27	前进部分扭矩**(5/8前进节气门全开)			-1	按所述	典型工况
28	倒挡部分扭矩**(5/8倒挡节气门全开)			-1	按所述	典型工况

注：表格中带有 ** 标记的工况表示特殊载荷条件。

图片包含图标AI 生成的内容可能不正确。

经过分析确定螺栓1所受的载荷，则后续计算以螺栓1为例进行校核，螺栓1能够满足载荷要求，其他更加没有问题。

表格AI 生成的内容可能不正确。

切向载荷为21.3kN，轴向载荷为2.0kN。

去除极限工况以后，切向载荷为14.6kN，轴向载荷为1.4kN。

3螺栓连接计算软件SD Pro计算输入整理

根据相关的图纸，数模，材料及材料机械性能，可以整理出螺栓连接的相关输入，直接可以输入到螺栓计算软件中。

图片包含图形用户界面AI 生成的内容可能不正确。

表格AI 生成的内容可能不正确。

图形用户界面, 应用程序AI 生成的内容可能不正确。

表格AI 生成的内容可能不正确。

软件中按照初步设计的拧紧扭矩要求90Nm+90°进行计算。

4计算结果分析

输入完成后得到如图所示的接头示意图，通过该示意图可以检查确认输入的信息，尺寸是否有明显的错误异常。如果有异常，可以检查修改。

图片包含图表AI 生成的内容可能不正确。

按照该拧紧工艺可以看到螺栓是过屈服拧紧的。螺栓按照90Nm+90°拧紧后预紧力为69.6kN-89.3kN，计算过屈服角度为67.5°-68.3°，由于实际拧紧时螺栓头下会有一定的磨损，假设按照0.1mm估算磨损量，相当于转动角度为24°，故理论过屈服角度可以设定过屈服的角度稍微大一些更加合理，更加符合实际情况，，当然，最终再通过试验进行该拧紧工艺的验证。

图表, 折线图AI 生成的内容可能不正确。