## 2 Introduction
In addition, pressure simulation plays a key role in predicting how materials behave at different pressure levels, including predicting the impact of material stretching, recovery, and compression properties on pressure characteristics [9]. Therefore, integrating pressure simulation into the design process is essential to improve the authenticity and accuracy of compression suit designs. To overcome these limitations, further research and improvements are needed to enhance the virtual simulation methods and ensure the more accurate reproduction of the real wearing experience [10]. To ensure the accuracy and reliability of virtual simulation, it is necessary to study the consistency between the virtual and real pressure values [11]. By means of experimental testing and numerical simulation, many researchers have studied the consistency between the real and virtual pressure values of compression pants, which provides a valuable reference for improving and optimizing the virtual simulation design process. [PERSON] et al. [12] analyzed the relationship between contact pressure and strain and its changing trend by using the finite element method and established an equation to evaluate the pressure of simulated socks. [PERSON] and [PERSON] [13] discovered that the predicted pressure was close to the pressure measured using the compression tester on a rigid body, while the soft tissue surface had no effect on the pressure disturbance, and the measured pressure was close to the predicted pressure value obtained via modeling. [PERSON] and [PERSON] [14] adopted the finite element method to simulate the dynamic relationship between waist pressure and the displacement of elastic tights. [PERSON] [15] compared and analyzed experimental pressure data with clothing comfort pressure data and verified the simulation, optimization, and correction of clothing structure rationality, which can effectively improve the accuracy of clothing structure simulation design. [PERSON] et al. [16] used CLO 7.0 software to carry out virtual fitting, extract the feature points, and establish a virtual pressure comfort evaluation model. [PERSON] et al. [17] used Optitex to simulate the pressure distribution of compressed garments and confirmed the effectiveness of virtual simulation in evaluating the performance of compressed garments. [PERSON] et al. [18] exam ined stress and strain through 3D virtual fitting to assess the users' satisfaction with the movement of body parts and posture, wearing comfort, and compression, while wearing tight pants. These studies emphasize the importance and reliability of virtual simulation in predicting the pressure value of compressed clothing design, provide guidance for improving and optimizing the virtual design process of compressed clothing, and contribute to the progress of virtual simulation technology and its integration with the compressed clothing design workflow. In the past, evaluating the comfort of clothing often required making multiple physical prototypes for testing. However, checking the fit and wearing condition of the finished product by accurately simulating and adjusting the pressure of the garment to intuitively design and adjust the garment can help designers develop ergonomically correct the compression pants, improve their fit, and enhance the product quality [19]. It is also helpful to carry out virtual clothing personalization, considering each person's body shape and needs, so as to better adapt to the curves and contours of the human body [20], meet the changing needs of consumers, and maintain a competitive edge in the rapidly changing fashion industry. To sum up, accurate pressure simulations have a wide application prospect in the development of virtual clothing. They can quickly evaluate the effect of different design schemes, shorten the design iteration cycle, improve the design efficiency, and promote personalized customization.